EMS Communications Resource Manual - The Abaris Group

R E S O U R C E M A N U A L

ACKNOWLEDGEMENTS

Richard E. WatsonInterim Director

State of California Emergency Medical Services Authority

Dan SmileyChief Deputy Director

State of California Emergency Medical Services Authority

Dan SpiessChief Executive Officer

Northern California Emergency Medical Services, Inc.

Special assistance with the on-site survey process and overall direction and report preparation wasobtained from the following people:

Chuck Baucom Larry MastermanMerced County EMS Agency Northern California EMS Agency410 West Main Street, Suite E 970 Executive WayMerced, CA 95340 Redding, CA 96002

Jack Becker Lois WilliamsEMS Specialists State of California EMS Authority1732 West 540 North, #31 1930 9th St., Suite 100St. George, UT 84770 Sacramento, CA 95814

Carol Biancalana The Abaris GroupState of California EMS Authority Mike Williams, President1930 9th St., Suite 100 Krista ArnonSacramento, CA 95814 Juliana Boyle

Susie HannaRhonda Rhymes700 Ygnacio Valley Rd., Suite 250Walnut Creek, CA 94596

This document was prepared by The Abaris Group, Walnut Creek, California through a contractwith Northern California EMS, Inc., State EMS Authority Grant #7025 - October, 1998.

Northern California EMS, Inc.

Statewide EMS Communications AssessmentResource Manual

Table of Contents

Introduction____________________________________________________________________5Purpose ___________________________________________________________________5Summary__________________________________________________________________5

Operational Information _________________________________________________________6FCC Rules and Regulations __________________________________________________6Operating Practices _________________________________________________________7Radio Theory ______________________________________________________________8Radio Frequency Interference _______________________________________________12Concepts of EMS Communications___________________________________________14

California EMS Allocations ______________________________________________________16General __________________________________________________________________16Introduction to Tables______________________________________________________16

Alameda County EMS Agency _______________________________________________18Contra Costa County EMS Agency ___________________________________________20El Dorado County EMS Agency______________________________________________22Fresno, Kings, Madera EMS Agency __________________________________________23Imperial County EMS Agency _______________________________________________26Kern County EMS Agency __________________________________________________27Los Angeles County EMS Agency ____________________________________________29Marin County EMS Agency _________________________________________________40Merced County EMS Agency ________________________________________________41Monterey County EMS Agency ______________________________________________42Mountain Valley EMS Agency _______________________________________________44Napa County EMS Agency __________________________________________________47North Coast EMS Agency ___________________________________________________48Northern California EMS Agency ____________________________________________50Orange County EMS Agency ________________________________________________55Riverside County EMS Agency_______________________________________________59Sacramento County EMS Agency ____________________________________________62San Benito County EMS Agency _____________________________________________64San Bernardino, Inyo, Mono EMS Agency_____________________________________65San Diego County EMS Agency______________________________________________69San Francisco EMS Agency__________________________________________________72

Northern California EMS, Inc.

Statewide EMS Communications AssessmentResource Manual

Table of Contents

San Joaquin County EMS Agency ____________________________________________74San Luis Obispo County EMS Agency ________________________________________76San Mateo County EMS Agency _____________________________________________77Santa Barbara EMS Agency__________________________________________________79Santa Clara County EMS Agency_____________________________________________81Santa Cruz County EMS Agency _____________________________________________84Sierra-Sacramento Valley EMS Agency________________________________________85Solano County EMS Agency_________________________________________________88Sonoma, Mendocino EMS Agency ___________________________________________89Tulare County EMS Agency _________________________________________________91Tuolumne County EMS Agency______________________________________________92Ventura County EMS Agency________________________________________________93

Acronyms_____________________________________________________________________95

Glossary______________________________________________________________________97

EMS Communications Resource Manual Page 5

INTRODUCTION

PURPOSE

This Emergency Medical Services Communications Resource Manual has been developedby the State of California EMS Authority primarily as an operational manual to be availableto all local EMS agencies. It is designed to contain information useful for EMS operations,as well as to provide the data necessary to enable radio communications during transportoperations within the state.

The Resource Manual is also intended to be useful for instructional purposes in trainingprograms for emergency medical technicians and paramedics, through its operationalapproach and explanatory sections on radio frequency communications.

SUMMARY

The Operations section of this manual contains requirements of the FederalCommunications Commission (FCC) Rules relating to communications operations,information on standard operating practices, basic radio theory, discussion of the variousradio frequency bands, and an explanation of primary sources of interference which candisrupt normal communications, as well as a definition of the concepts involved in EMScommunications.

The California EMS Allocations section contains an alphabetical listing by county EMSagencies of all radio frequencies for EMS operations within the state, as well as hospitalemergency department address and telephone information. Radio dial codes are shown forthose counties using selective addressing for radio communications with hospitals. Thetelephone number of each ground and air ambulance provider is listed, showing thequantity of ALS, BLS, and air transport permitted vehicles licensed to each.


OPERATIONAL INFORMATION

FCC RULES AND REGULATIONS

The Federal Communications Commission (FCC) prescribes a framework of rules to governthe transmission of radio signals. Under these rules, each user of the radio spectrum mustbe eligible to operate on given frequencies and be authorized to do so. The FCC rules andregulations are organized into various parts and subparts which address the FCC’s practiceand procedure as well as the particulars of the radio services into which the frequencyspectrum is allocated, including frequency assignment policy and operating requirements.Public Safety communications including the Special Emergency Radio Service is governedby Part 90 of the FCC Rules.

1. General RequirementsLicenses of radio systems have direct responsibility for the proper operation of eachtransmitter licensed. They must ensure that radios are used in accordance with the FCCrules and for purposes directly related to the particular activities for which they are licensed.Priority is to be given to communications involving the imminent safety of life and property,but licensees are required to keep transmission times to a minimum and employ efficientoperating procedures to maximize the utilization of the frequency spectrum.

With the exception of those frequencies assigned for the exclusive use of a licensee in thefrequency bands 470-512 MHz and 806-824/851-869 MHz, frequency assignments areconsidered to be available on a shared basis only. All licensees, and applicants for newlicenses, are required to cooperate in the selection and use of frequencies in order toreduce interference and make the most effective use of the authorized radio facilities.

Licensees are required to take reasonable precautions to avoid causing harmful interferenceto other radio users. This includes monitoring the operating frequency for communicationsin progress and other such necessary measures to minimize the potential for interference.

2. Station IdentificationFor Public Safety communications systems, each station or system of stations must beidentified by the transmission of the assigned FCC call sign during each exchange oftransmissions, or once every 30 minutes if operation is continuous. Identification must bemade by voice in the English language or, alternatively, may be made by automatic meansusing the International Morse Code. In addition to the call sign, station or unit identifiersmay be transmitted as necessary or desirable for system operation.

3. Operator RequirementsNo operator license or permit is required for the individual personnel operating radioequipment. Any person having the consent of the system licensee may provide authorizedcommunications on behalf of the licensee. The licensee will at all times exerciseresponsibility for operations and is expected to provide observation, servicing andmaintenance as often as necessary to ensure compliance with all applicable rules.


OPERATING PRACTICES

In the course of providing emergency health care to the public, many of the individualparticipants practicing in the EMS system are required to communicate with one another viatwo-way radio facilities. Good operator practice is essential to the effectiveness andefficiency of any public safety communications system. For EMS, good practice followedby EMTs/paramedics, dispatchers, physicians and emergency department nursing personnelrelates directly to a reduction in response time which in turn saves lives, reduces furtherinjuries and minimizes suffering.

1. Equipment FamiliarizationA first step in proper communications techniques is a familiarization with the radioequipment to be used by the operator. There are many different brands and types of radioequipment items that EMS personnel will encounter in their work, and manufacturers arecontinually introducing new products which will always present new educationalchallenges. As a minimum, communications systems are comprised of mobile and portableradios, base/repeater stations and various radio control devices. Additionally, they mayinclude more complex aspects such as telemetry, satellite receiver voting systems, vehicularrepeaters and trunked operations.

EMS personnel should take sufficient time to learn the correct operation of each item ofcommunications equipment that they use. They should fully investigate the various featuresof that equipment in order to maximize the extent to which the equipment assists indelivery of emergency services. Operators are encouraged to ask questions of theircolleagues, equipment maintenance technicians and manufacturers’ representatives toensure understanding.

2. Communications SkillsThe objective of radio communications in EMS is to convey information in a concise andaccurate manner. The communications skills exhibited by operator personnel can have apositive influence on the outcome of a particular event.

A. Operating Protocol

For most EMS providers there is generally a protocol (written or unwritten) to governradio communications. If unwritten, such procedures are probably defined bytradition. No attempt is made here to establish a particular mode of operationhowever, certain key points are highlighted for the benefit of operator personnel.

• Follow standard protocol established by the EMS service. It may address themanner in which calls are to be placed from one unit of the service to another andgovern the manner in which messages are formatted.

• Maintain channel discipline. Courtesy and respect for the communicationsof others sharing the radio channel go a long way in preserving order, especially incongested geographic areas with much radio traffic. Monitor the channel beforetransmitting to prevent interference to other users. Think ahead and keeptransmissions short and to the point to maximize airtime.


• Practice verbal communications skills. Speak distinctly, at a moderate rate,and directly into the microphone or handset to maximize intelligibility. Keeping themicrophone close to the mouth overcomes background noise and permits theoperator to speak in a normal tone of voice. Shouting is to be avoided as it resultsin audio distortion.

• Use plain language to describe a particular condition or event when indoubt of the appropriate aural brevity code which might otherwise be used.Individuals under stress may find it easier to relate clear and simple descriptions.

B. Technical Considerations

• Key your transmitter before engaging in speech. The complexities incommunications system design often introduce delay in the time it takes to turn onthe various components comprising the system. Transmitters take time to come upto full power output, tone squelch decoding equipment requires time to openreceivers and receiver voting systems take time to select the best receiver. Whilethese events generally are accomplished in less than one second’s time, there aremany voice transmissions that could be missed in their entirety if the operator didnot delay slightly before beginning his/her voice message. Pausing one second afterdepressing the push-to-talk button on the microphone or handset is sufficient inmost cases to prevent missed words or responses.

• Keep loudspeaker clear of clutter. Papers or other materials covering orobstructing loudspeakers can diminish receiver audio and alter intelligibility.

• Avoid turning receiver volume too low. A low setting may fail to attract theoperator’s attention to an incoming call.

RADIO THEORY

1. Radio WavesA radio signal is an invisible wave of “electromagnetic” radiation which has the ability tomove through space at 186,000 miles per second – the speed of light. It is non-ionizingradiation which results when an alternating current of radio frequency is established in anantenna. The alternating current will produce an alternating electromagnetic field in thespace surrounding the antenna which will propagate outward from the antenna with acontinuous reduction in strength.

2. Alternating Current vs. Direct CurrentThe alternating electric and magnetic fields associated with radio waves are better realizedwith some understanding of electrical current. The most basic form of electricity is directcurrent, known as DC, which is that obtained most commonly from a battery. If both


terminals of a battery are connected to some electric device or circuit, current will flowfrom the battery through the circuit. For example, if a light bulb were connected to abattery, current would flow through the light bulb and produce energy in the form of visiblelight.

If the battery direct current source was replaced with a source of alternating current (AC)such as a generator, the current in the light circuit would continually reverse its direction, oralternate, at a rate dependent on the rotating speed of the generator. The number of timesper second that the current changes direction (cycles per second) is known as the frequencyof the alternating current.

3. Radio FrequenciesRadio waves are produced by alternating currents which are of the same nature, but ofmuch higher frequency than the 60 cycles per second frequency of normal AC powersystems. These currents are generated by a radio transmitter which is connected to anantenna to produce the radiated wave. The waves thus produced by an antenna travelthrough space to a distant antenna which is connected to a radio receiver. The purpose ofthe radio signal is to carry information from a point of origin to one or more points ofdestination, hence the terms “carrier wave” or “carrier” which are often used to describe it.The information carried may be voice, music, video, telemetry, or other information.

The range of frequencies which may be used for radio communication vary betweenapproximately 30,000 Hz (Hertz) and 300,000,000,000 Hz. When dealing with such highfrequencies it is more appropriate to use larger units to describe them. The termscommonly used are kilohertz, megahertz and gigahertz, abbreviated kHz, MHz and GHz,respectively. The relationship between hertz, kilohertz, megahertz and gigahertz is asfollows:

1 kHz = 1,000 Hz1 MHz = 1,000 kHz = 1,000,000 Hz1 GHz = 1,000 MHz = 1,000,000 kHz = 1,000,000,000 Hz

To gain familiarity with the frequency spectrum and its units of measurement, it is helpful totake as a first example the standard AM broadcast band. This radio band extends from 540kHz to operating at 1.2 MHz. The FM broadcast band is located much higher in thefrequency spectrum than the AM band, and ranges between 88 and 108 MHz. In betweenthe AM and FM broadcast bands (between 1.6 kHz and 88 MHz) operate many differentcommunications services. Included in this range of spectrum are international (shortwave)broadcasts, military communications and ham radio, but most familiar are Citizens Band(CB) radio at 27 MHz and TV Channels 2 through 6 between 54 and 88 MHz. This portionof the spectrum is graphically portrayed as follows:

kHz MHz

540 1600 27 54 88 108 ============ ===================


Services that operate above the FM broadcast band include aircraft (118 – 136 MHz), TVChannels 7 through 13, and 14 through 69 (174 - 216 MHz and 470 – 806 MHz,respectively), and cellular telephones (825 – 845 MHz and 870 – 890 MHz base).

118 136 174 216 470 512 806 825 900 === ===== ============ ======== Air Craft TV 7-13 TV 14-69

4. Land Mobile Radio Frequency BandsThe entire radio frequency spectrum is grouped into the following classifications offrequency range and band name:

30 – 300 kHz Low Frequency (LF)300 – 3,000 kHz Medium Frequency (MF)3 – 30 MHz High Frequency (HF)30 – 300 MHz Very High Frequency (VHF)*300 – 3,000 MHz Ultra High Frequency (UHF)3 – 30 GHz Super High Frequency (SHF)30 – 300 GHz Extremely High Frequency (EHF)

*within the VHF Band used by public safety radio services, the range 30 –50 MHz is commonlyreferred to as “VHF Low Band”; the range 150 – 160 MHz is referred to as VHF High Band.

In the spectrum between 25 MHz and 1, 000 MHz are various bands allocated by the FCCfor two-way mobile radio communications known as land mobile radio bands. They havethe following common designations:

25 – 50 MHz VHF Low Band150 – 174 MHz VHF High Band450 – 470 MHz UHF Band470 – 512 MHz UHF TV Sharing (specific areas only)806 – 824/851 – 869 MHz 800 MHz Band

Each of these frequency sub-bands are widely used for two-way land mobile radiocommunications in the Public Safety Radio Services. The choice as to which one is best fora particular operation depends on the frequency availability, the particular type ofcommunications system required, the radio coverage area required, and many otherengineering factors. Because of the consistently high demand for radio frequencies withinthe past few years, it usually becomes a matter of frequency availability rather thanpreference. However, when it is possible to choose the operating frequency of a radiosystem, the characteristics for each band should be carefully considered. Each frequencyband has its unique properties which must be factored into the overall engineering of thesystem design for each user.

5. VHF Low BandVHF Low Band has, as its advantage, the farthest coverage distance (other factors beingequal) of any of the land mobile frequency bands. Given the same operating conditions(transmitter power and antenna height), low band will generally “talk” farther, base-to-mobile and mobile-to-mobile. It is also better suited for traversing hilly terrain andpenetrating heavily wooded areas than higher frequencies.


Unfortunately, VHF Low Band has several disadvantages not shared by higher frequencies.It is commonly affected by skip interference (which occurs when radio signals are reflectedfrom the upper atmosphere at great distances from the location of origin). It is notuncommon to receive stations over 2,000 miles away, and such occurrences tend to disruptlocal communications. VHF Low Band is also affected to more of an extent by man-madenoise sources than higher frequencies. Automobile ignition systems, motors, commercialpower lines and electric fences in the vicinity of radio receivers may create so muchelectrical noise that the desired radio signals may be masked at times to the point that theybecome unusable.

Additionally, and for some of the above reasons, VHF Low Band does not generally farewell in urban environments. In addition to the above shortcomings, antennas for VHF LowBand communications must be relatively large compared to higher frequency antennas;attempts to shorten these antennas for convenience or practicality results in inefficiency andreduced coverage area.

6. VHF High BandWithin the 150 MHz range of VHF High Band, skip interference is considerably reduced.Manmade noise sources also are not of as much concern, and better penetration intometropolitan area environments is realized. Due to the shorter wavelength of VHF HighBand, it becomes practical to use shorter antennas that exhibit greater gain than with similarlengths at VHF Low Band.

VHF High Band has typically been, for the above reasons, the band of choice for manyapplications. In many parts of the United States, however, VHF High Band has become socongested, particularly in metropolitan areas, that interference of several kinds fromneighboring systems is often received. Point-to-point co-channel interference is particularlysevere in view of the simplex-type allocation of these frequencies by the FCC. VHF HighBand is also characterized by a somewhat shorter communications range than VHF LowBand, especially on a mobile-to-mobile basis.

7. UHF BANDUHF Band communications are virtually free from skip interference and electrical noisewhen compared to lower bands. At 450 MHz, the radio waves are physically shorter thanVHF Low Band or High Band such that they have an ability to easily reflect off of commonhard surfaces. Thus, the UHF Band is often an excellent choice for penetrating into, andaround, heavy building structures in urban areas.

As frequency is increased however, losses due to hills and foliage also increase. The UHFBand has more difficulty transmitting signals over hilly or irregular terrain than with lowerbands. Hills tend to block the signal more severely and can significantly reduce range.Also, absorption of the signal by trees and other foliage is more prevalent at UHF and mustbe factored into any UHF system design. Since mobile-to-mobile range is significantly lessthan that accommodated by the lower frequency bands, repeater stations are commonlyused to relay transmissions between mobile units.


8. 800 MHz BandThe characteristics of the 800 MHz Band are very similar to the UHF Band except that thenegative aspects are somewhat accentuated. With the proper engineering and designhowever, the 800 MHz Band can be a viable alternative to the lower frequencies. Beyondany question it is currently the one band for which the latest communications technology isoffered. It is also the only land mobile frequency band that (at least today) is generally lesscongested than lower bands. In many areas of the United States, including areas ofCalifornia, the 800 MHz Band is the only band in which new channel assignments arecurrently available.

RADIO FREQUENCY INTERFERENCE

The ability to communicate by radio may be significantly affected by other communicationssystems operating on the same or different frequencies. Most interference that occurs isunintentional and can be difficult to identify if it can be detected at all.

1. Co-Channel InterferenceThis type of interference is most readily identified and occurs from different radio systemssharing the same frequency. Ideally, systems are authorized with sufficient geographicdistance between them such that one system does not hear the other system and vice-versa.On occasion, however, atmospheric conditions will support better than normalcommunications range and audible signals of the distant system are received. Dependingon the strength of these co-channel signals, normal communications may be disrupted orprecluded. Co-channel interference is sometimes referred to as skip interference when theinterfering signal originates hundreds or even thousands of miles away from the affectedreceiver. This mechanism of radio transmission uses the upper atmosphere (ionosphere) toreflect a radio wave back to earth.

2. Receiver DesensitizationWhen using a radio receiver in the physical vicinity of a transmitter operating on afrequency close to that which the receiver is tuned (but not directly on it), the receiver’sability to hear weak on-channel signals is impaired. The effect may be to lose a desiredtransmission completely or it may appear to be partially cut off.

3. Transmitter NoiseTransmitters are not perfect devices and will radiate some amount of noise in addition tothe primary signal. This noise appears on either side of the transmitted signal and caninterfere with nearby receivers tuned to other frequencies. The end result is similar to whatis experienced with receiver desensitization, but the mechanism of interference is maskingof desired signals by the noisy transmitter.


4. Intermodulation InterferenceIntermodulation interference, or “intermod”, is caused when two or more radio signals ofdifferent frequencies combine to create yet other frequencies (a process known as mixing).If one of the new frequencies produced happens to occur on a desired receiver frequency,interference may result to desired signals. Such frequency mixing often occurs either in atransmitter or a receiver.

Transmitter-produced intermod occurs when strong radio signals are combined in thepower amplifier of a transmitter, and the mix frequencies are re-radiated along with theintended signal. If one of the mix frequencies is heard in the affected receiver, it may bepossible to detect the audio of the interfering signal as comprised of multiple voices inaccordance with the number of transmitters participating in the mix.

Receiver-produced intermod manifests itself when two or more strong off-frequency signalscombine in the receiver electronic circuitry to create still other frequencies through mixing.Like the transmitter-produced case, if one of the resultant frequencies is nearly the same asthe frequency to which the receiver is tuned, the intermod signal will compete with thedesired received signal.

Intermodulation interference can generally be identified by listening to the interferingsignal, because it will usually be comprised of two or more voices and is likely to suddenlycease when one of the transmitters contributing to the mixing process is turned off.However, the process of identifying the participants so as to remedy the interferenceproblem may not be so easy since they may be located at other radio sites and operate indifferent radio services. Additionally, intermod is produced in sites other than transmittersand receivers. These sites of production may include antennas, metallic flashing onrooftops, rusted or corroded mechanical joints of antenna towers, and on occasion, rustedautomobile bodies or similar materials.

5. Equipment and Interference RejectionWhile the occurrence of interference in the radio environment cannot be totally eliminated,it can often be controlled to the point where its harmful effects minimize the disruption ofcommunications. For the public safety services, the purchase of communicationsequipment exhibiting quality in the design of interference rejection circuitry will do muchfor dealing with the problems of receiver desensitization, transmitter noise andintermodulation interference. Additionally, proper system engineering is required toprovide for ancillary protective devices (such as radio frequency filters and isolators) whereneeded.


CONCEPTS OF EMS COMMUNICATIONS

1. GeneralAn emergency medical services communications system must provide the means by whichemergency medical resources can be accessed, mobilized, managed, and coordinated inboth normal and adverse situations. An EMS communications system must therefore,employ sufficient communications paths and operational capabilities among all participantsto facilitate the functional EMS communications concepts described in the remainder of thissection.

2. Citizen AccessThe EMS communications system must have the ability to receive and process anyincoming requests that report emergencies and require emergency medical assistance. Allindividuals shall be able to summon help rapidly in an emergency situation whether formedical, police, fire, rescue, or other emergency need. Local, statewide, and nationaluniformity is required to fully enable this concept.

The State of California 9-1-1 Plan provides for a cohesive statewide emergency telephonenumber system to provide citizens with this rapid direct access to public safety agencies.

3. Vehicle Dispatch and Response (VDR)On notification of need for emergency medical assistance, the communications system mustenable prompt dispatch of EMS vehicles (including notification of rotor-wing aircraft) to thelocation of the emergency. The communications system must further enable dispatchers tocommunicate with responding vehicles while in route to the scene, while at the scene,while in route to hospital emergency department facilities, and during their return toavailability for further assignment.

4. Automatic Vehicle LocationUse of automatic vehicle location (AVL) systems provide real-time geographic location ofvehicles to ensure the nearest available vehicle is dispatched to the scene of an incident.Additionally, an AVL system displays vehicle positions to dispatchers on either tabularand/or graphic displays as well as providing the information necessary to a computer-aideddispatch (CAD) program when utilized in a system status management structure.

5. Crew Alert PagingAs a subconcept to vehicle dispatch and response some EMS communications systems, asdetermined by local procedure, may require the direct alerting of EMS personnel eitherindividually or in groups, through the use of either monitor or paging receivers, or bymeans of two-way handheld portable radios with a selective call capability. This concept islimited only to such alert paging required to facilitate the immediate response and action ofpersonnel resulting from a request for emergency medical services.


6. Local Medical Coordination (LMC)The EMS communications system must provide EMS field personnel (advanced and basiclife support) with a channel of communications that permits the exchange of vitalinformation between both EMS field personnel and emergency department personnel whilethe patient is at the scene of the medical emergency and while being transported to anemergency department facility.

7. Statewide Medical Coordination (SMC)In addition to Local Medical Coordination (LMC) capability, the EMS communicationssystem must provide a communications channel to enable medical coordination betweenEMS field personnel and emergency department personnel during situations in which avehicle is out of its prime area and unable to access an emergency department using theLMC channel of that area (mutual-aid communications), and in isolated critical situationsduring which prolonged use of the LMC channel would not be feasible due to other LMCcommunications traffic. Such uses of the SMC channel must be limited only to thetemporary duration for such situations.

8. On-Scene Coordination (OSC)The EMS communications system must have the capability for mobile and portable radios tocommunicate directly (unit-to-unit) while on the scene of an emergency requiring multiplevehicle response.

9. Medical Resource Coordination (MRC)The EMS communications system must allow for point-to-point coordination of EMSresources between hospitals, providers, and communications control centers for response toa disaster or mass casualty incident. Telephone lines between communications controlcenters can be used for resource coordination during normal operations. However, radiocommunications are needed during situations following hurricanes, tornadoes, floods, fires,etc., when telephone lines are inoperative, or when telephone central office switchingfacilities are jammed or disabled.


CALIFORNIA EMS ALLOCATIONS

GENERAL

Preparation of the following tables of radio channels and allocations and organizationaldata for EMS communications within California has been a major undertaking by the Stateof California EMS Authority in the production of this manual. The effort began in 1997 witha survey of all counties, EMS providers, and hospitals in the State. The survey was followedby numerous site visits, mail surveys and telephone inquiries continuing through the fall of1998. Every effort within the time available has been made to insure the data collected isas accurate, complete, and up-to-date as possible.

As with any database of this size, errors and omissions are bound to occur. The State ofCalifornia EMS Authority requests all organizations to review the data applicable to them,and to advise the State of California EMS Authority as to any changes or additionsnecessary. The State of California EMS Authority further requests ideas as to any ways inwhich the data may be made more useful or complete toward its purpose of providing themost current and applicable EMS communications information to organizations involved inthe provision of emergency medical services within California.

Note: In the following tables the symbol N/A = Not Available and N/R = No Response

INTRODUCTION TO TABLES

The following tables are organized alphabetically by county EMS agency. Within eachcounty EMS agency is a list of radio channel information, followed by information onemergency department facilities, and EMS providers.

1. Radio Channel Information

Radio channel information is shown by channel use description, by continuous tonecontrolled squelch (CTCSS) frequency (in Hertz), by primary or alternate status, and bybase-transmit and base-receive frequency in (MHz or MED channel number).

A. MED Channel Frequencies

MED Channel numbers 1 through 10 are prescribed by FCC Rules, Part90.27(c)(13)(i) and 90.27(b) as corresponding to the following radio transmitfrequencies in MHz:

MED Channel Frequency (Base/Mobile) Frequency (Mobile Only)1 463.000 468.0002 463.025 468.0253 463.050 468.0504 463.075 468.0755 463.100 468.1006 463.125 468.1257 463.150 468.1508 463.175 468.1759 462.950 467.95010 462.975 467.975


B. CTCSS Frequencies

Continuous Tone-Controlled Squelch (CTCSS) systems provide a reduction ofnuisance interference in FM radio systems by incorporating a sub-audible tone ontothe radio carrier information such that only a similarly equipped radio receiver willopen its squelch circuit to receive the transmission. Systems equipped with CTCSSwill eliminate much interference from distant sources, although CTCSS by itselfcannot prevent undesired “FM capture” from occurring due to nearby simultaneousco-channel transmissions.

CTCSS frequencies are designated by the Electronic/Telecommunications IndustriesAssociation (EIA/TIA) in EIA/TIA Standard 603. The following table is a portion ofthose CTCSS frequencies above 90 Hz and below 211 Hz which are approved forEMS radio communications in California. Since there is an abbreviated codescheme for these frequencies common to systems supplied by MotorolaCommunications & Electronics Inc., the Motorola (MOT.) code designations of theseCTCSS frequencies are also shown. Similarly, the Wolfsberg (WOLF.) codes arealso shown. Insofar as possible, CTCSS tones within a local geographic area shouldbe exclusively from either Group A or Group B to avoid false sensing due toadjacent tone frequencies.

Group A Group B CTCSS MOT .WOLF CTCSS MOT. WOLFFreq.(Hz) Code Code Freq.(Hz) Code Code100.0 1Z 14 94.8 ZA 12107.2 1B 16 103.5 1A 15114.8 2A 18 110.9 2Z 17123.0 3Z 22 127.3 3A 23131.8 3B 24 136.5 4Z 25141.3 4A 26 146.2 4B 27151.4 5Z 28 156.7 5A 31162.2 5B 32 167.9 6Z 33173.8 6A 34 192.8 7A 37186.2 7Z 36 210.7 M2 --203.5 M1 38

Excluded from the above list are: CTCSS frequencies below 90 Hz which maycause unacceptably long receiver response times in some systems; frequenciesabove 211 Hz which may require special engineering considerations in production;frequencies which would receive interference from common 60 Hz AC powersystems; and non-EIA frequencies offered by some manufacturers which would limitintersystem and mutual-aid operations.


C. Primary/Alternate Allocations

The primary and alternate designations on some MED Channels shown on thefollowing tables derive originally from FCC rules requiring not less than fourchannels (three, if bio-medical telemetry is not employed) be provided from EMSbase station operations for medical coordination between ambulances and hospitalemergency departments. The primary/alternate scheme of allocation is necessary toinsure that a channel is available when needed considering simultaneous MEDChannel use in adjacent areas.

2. Emergency Department InformationFor each county EMS agency, emergency department facilities are listed with their address,followed by the 24-hour telephone number of either the switchboard (Main), emergencydepartment (ED) or both.

3. EMS ProviderWithin each county EMS agency, EMS providers are listed alphabetically showing the typeof transportation (ground [G], air [A], water [W]) quantity of ambulances, whether or not thevehicles transport to a hospital and the highest level of ALS or BLS certification at thelocation. The telephone number of each provider is also shown.


Alameda County EMS Agency

Local EMS AgencyMichael Harris, EMS Administrator1000 Broadway, Suite 5024Oakland, California 94607(510) 628-5060

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) Trunked system 800 MHz N/A N/A N/AStatewide Medical Coordination Fire White N/A N/A N/A N/A CALCORD N/A N/A N/A N/ACalling Channel

800 MHz N/A N/A N/ADispatch (for each EMS Agency) Trunked system 800 MHz N/A N/A N/ADirect to hospitals Trunked system, telephone 800 MHz N/A N/A N/AOther (e.g. tactical, etc.) For disasters 800 MHz N/A N/A N/A Fire White 155.400 N/A N/A N/A CALCORD N/A N/A N/A N/A

Emergency Department Facilities TelephoneAlameda Hospital (510) 522-37002070 Clinton AvenueAlameda, California 94501

ValleyCare Medical Center (925) 847-30005575 W. Los Positas Blvd.Pleasanton, California 94588

St. Rose Hospital (510) 264-400027200 Calagora AvenueHayward, California 94545

Eden Hospital (510) 889-504820103 Lake Chabot RoadCastro Valley, California 94546

Children’s Hospital (510) 428-3273747 52nd StreetOakland, California 94609

Highland General Hospital (510) 437-48001411 E – 31st StreetOakland, California 94602

Alta Bates Medical Center (510) 204-44442450 Ashby AvenueBerkeley, California 94705

San Leandro Hospital (510) 357-650013855 East 14th StreetSan Leandro, California 94578


Alameda County EMS Agency

Emergency Department Facilities TelephoneWashington Hospital (510) 797-11112000 Mowry AvenueFremont, California 94538

Kaiser Hospital, Oakland (510) 596-7667280 West Mac Arthur Blvd.Oakland, California 94611

Kaiser Hospital, Hayward (510) 784-400027400 Hesparian Blvd.Hayward, California 94545

Summit Medical Center (510) 655-4000350 Hawthorne StreetOakland, California 94609

San Ramon Regional Medical Center (925) 275-92006001 Norris Canyon RoadSan Ramon, California 94623

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAmerican Medical Response West (510) 895-7600 G 40 yes ALSAlameda County Fire Department (510) 618-3485 G 0 no ALSAlameda Fire Department (510) 522-4100 G 3 yes BLSAlbany Fire Department (510) 528-5771 G 1 yes ALSBerkeley Fire Department (510) 644-6665 G 3 yes ALSCALSTAR (800) 252-5050 GA 2 yes ALSCalifornia Department of Forestry and Fire (925) 862-2197 G 0 no BLSCHP (707) 253-4906 A 1 yes ALSEast Bay Regional Parks District (510) 881-1833 GAW 0 yes BLSEmeryville Fire Department (510) 596-3750 G 0 no ALSFremont Fire Department (510) 494-4290 G 0 no ALSHayward Fire Department (510) 293-8690 G 0 no BLSLawrence Berkeley Lab Fire Department (510) 486-6360 G 0 no BLSLawrence Livermore National Laboratory (925) 422-3980 G 1 no ALSLivermore Fire Department (925) 737-5463 G 0 no ALSNaval Supply Center Fire Department (510) 263-3276 G 0 no BLSNewark Fire Department (510) 793-1400 G 0 no ALSOakland Fire Department (510) 238-6725 G 0 no BLSPiedmont Fire Department (510) 420-3030 G 1 yes BLSPleasanton Fire Department (925) 484-8114 G 0 no ALSReach Helicopter (707) 575-6886 GA 2 yes ALS


Contra Costa County EMS Agency

Local EMS AgencyArt Lathrop, EMS Administrator50 Glacier Dr.Martinez, California 94553(925) 646-4690

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) Contra Costa FPD 46.32 46.32 162.2 N/A Moraga-Orinda FPD 46.38 46.38 162.2 N/A San Ramon Valley FPD 45.88 46.44 162.2 N/A Richmond Fire Department 46.42 46.06 162.2 N/A Pinole/Rodeo Fire Departments 46.48 46.48 162.2 N/A East Diablo/Bethel Isl. FPD’s 46.18 46.18 162.2 N/AStatewide Medical Coordination Fire Medical Mutual Aid N/A N/A N/A 155.400Calling Channel N/A N/A N/A N/ADispatch (for each EMS Agency) Contra Costa FPD 46.32 46.32 162.2 N/A Moraga-Orinda FPD 46.38 46.38 162.2 N/A San Ramon Valley FPD 45.88 46.44 162.2 N/A Richmond Fire Department 46.42 46.06 162.2 N/A Pinole/Rodeo Fire Depts. 46.48 46.48 162.2 N/A East Diablo/Bethel Isl. FPD’s 46.18 46.18 162.2 N/ADirect to hospitals MEDARS 12 (T-band) 491.9125 488.9125 N/A N/A MEDARS 13 (T-band) 491.6125 488.6125 N/A N/A MEDARS 14 (T-band) 491.6625 488.6625 N/A N/AOther (e.g. tactical, etc.) N/A N/A N/A N/A

Emergency Department Facilities TelephoneDoctor’s Hospital, San Pablo Campus (510) 235-700200 Vale RoadSan Pablo, California 94806

Sutter Delta Hospital (925) 779-72003901 Lone Tree WayAntioch, California 94509

Doctor’s Hospital, Pinole Campus (510) 724-50002151 Appian WayPinole, California 94564

John Muir Medical Center (925) 939-30001601 Ygnacio Valley RoadWalnut Creek, California 94598

Kaiser Medical Center-Walnut Creek (925) 295-40001425 South Main StreetWalnut Creek, California 94596

Contra Costa Regional Medical Center (925) 370-50002500 Alhambra AvenueMartinez, California 94553


Contra Costa County EMS Agency

Emergency Department Facilities TelephoneMt. Diablo Medical Center (925) 682-8200PO Box 41102540 East StreetConcord, California 94524

San Ramon Regional Medical Center (925) 275-92006001 Norris Canyon RoadSan Ramon, California 94583

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAmerican Medical Response West (925) 827-2970 G 47 yes ALSBethel Island Fire Protection District (925) 684-2211 G 0 no ALSContra Costa County Fire Protection District (925) 939-3400 G 0 no BLSCrockett-Carquinez Fire Protection District (510) 787-2717 G 0 no BLSEast Diablo Fire Protection District (925) 634-3400 G 0 no BLSEl Cerrito Fire Department (510) 215-4450 G 0 no ALSMoraga/Orinda Fire Protection District (925) 939-3400 G 1 yes ALSPinole Fire Department (510) 724-8970 G 0 no BLSRichmond Fire Department (510) 307-8031 G 0 no BLSRodeo-Hercules Fire Protection District (510) 799-4561 G 0 no BLSSan Ramon Valley Fire Protection District (925) 838-6691 G 7 yes ALS


El Dorado County EMS Agency

Local EMS AgencyRandy Schrader, EMS Interim Director415 Placerville Dr., Suite JPlacerville, California 95667(530) 621-6500

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) East Slope-Police 154.445 156.030 N/A N/A West Slope 46.08 46.42 Multiple N/AStatewide Medical Coordination

Microwave Microwave N/A N/ACalling Channel

N/A N/A N/A N/ADispatch (for each EMS Agency) East Slope-City Fire 154.445 N/A N/A N/A East Slope-Lake Valley N/A 154.340 N/A N/A West Slope 46.08 46.42 Multiple N/ADirect to hospitals East Slope-In ambulances only N/A N/A N/A N/A West Slope Mednets Mednets Multiple N/AOther (e.g. tactical, etc.) East Slope-S&R Sierra Channel 160.875 160.875 N/A N/A East Slope-White Fire 154.280 154.280 N/A N/A

Emergency Department Facilities TelephoneMarshall Hospital (530) 622--1441Marshall WayPlacerville, California 95667

Barton Memorial Hospital (530) 541-3420PO Box 9578South Lake Tahoe, California 96158

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityCalifornia Department of Forestry (530) 644-2345 GA 0 no BLSCameron Park CSD/CDF (530) 677-2231 G 1 yes ALSDiamond Springs/El Dorado FPD (530) 626-3190 (530) 626-3185 G 1 yes ALSEl Dorado County FPD (530) 644-9630 G 4 yes ALSEl Dorado Hills FPD (530) 677-7622 G 1 yes ALSFallen Leaf Lake FPD (530) 542-1343 G 0 no BLSGarden Valley FPD (530) 333-1240 G 0 no BLSGeorgetown FPD (530) 333-4111 G 1 yes ALSLake Valley FPD (530) 577-3737 G 0 no BLSLake Tahoe Ambulance, Inc. (530) 542-5665 G 3 yes ALSLatrobe FPD (530) 677-6366 G 0 no ALSMeeks Bay FPD (530) 525-7548 G 0 no BLSMosquito FPD (530) 626-9017 G 0 no BLSPioneer FPD (530) 620-4444 G 0 no ALSRescue FPD (530) 677-1868 G 0 no ALSSouth Lake Tahoe Fire Department (530) 542-6100 G 0 no BLSTahoe Douglas FPD (702) 588-3591 G 3 yes ALSNorth Tahoe FPD (916) 583-6913 G 3 yes ALS


Fresno, Kings, Madera EMS Agency

Local EMS AgencyDan Lynch, EMS AdministratorPO Box 11867Fresno, California 93775(559) 445-3387

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) Med 1 468.000 463.000 114.8 N/A Med 2 468.025 463.025 114.8 N/A Med 3 468.050 463.050 114.8 N/A Med 4 468.075 463.075 179.9 N/A Med 5 468.100 463.100 179.9 N/A Med 6 468.125 463.125 179.9 N/A Med 7 468.150 463.150 179.9 N/A Med 8 468.175 463.175 114.8 N/A Med 9 467.950 462.950 179.9 N/A Med 10 467.975 462.975 114.8 N/A Med 11 458.300 453.300 156.7 N/A Med 12 458.325 453.325 156.7 N/A Med 13 458.1875 458.1875 114.8 N/A Med 14 456.425 451.425 141.3 N/AStatewide Medical Coordination

N/A N/A N/A N/ACalling Channel

N/A N/A N/A N/ADispatch (for each EMS Agency) Hanford City Fire 465.575 460.575 146.2 N/A Kings County Fire 465.625 460.600 146.2 N/A Fresno City Fire 153.845 173.8 N/A Clovis City Fire 154.235 103.5 N/A Fresno County Fire 153.890 None N/A NCFPD 154.190 100.0 N/A Fire White Net 1 154.280 None N/A Hospital Emergency Admin. Radio System 155.340 None N/A Madera County Fire 151.460 None N/ADirect to hospitals

N/A N/A N/A N/AOther (e.g. tactical, etc.) CALCORD 156.075 156.075 156.7 N/A

Emergency Department Facilities TelephoneFresno Community Hospital (559) 442-6000 MainPO Box 1232 (559) 442-2432 EDFresno, California 93720

Saint Agnes Medical Center (559) 449-3000 Main1201 E. Herdon, #105 (559) 449-3534 EDFresno, California 93720

Clovis Community Hospital (559) 323-4000 Main2755 E. Herdon Avenue (559) 323-4040 EDClovis, California 93611



Emergency Department Facilities TelephoneValley Childrens Hospital (559) 225-30003151 N. Millbrook AvenueFresno, California 93703

Sierra Kings Hospital (559) 638-8155372 W. CypressReedley, California 93654

University Medical Center (559) 453-4000 Main445 S. Cedar Avenue (559) 453-5199 EDFresno, California 93720

Kaiser Permanente (559) 448-31387300 N. Fresno StreetFresno, California 93720

Selma District Hospital (559) 888-21121141 Rose AvenueSelma, California 93662

Kingsburg Medical Center (559) 897-55791200 Smith StreetKingsburg, California 93631

Coalinga District Hospital (559) 935-64001191 Phelps AvenueCoalinga, California 93210-9609

Veteran’s Memorial Hospital (559) 225-61002615 E. ClintonFresno, California 93703

Hanford Community Medical Center (559) 582-9000 Main450 Greenfield Avenue (559) 583-2250 EDHanford, California 93230

Central Valley General Hospital (559) 583-2100 Main1025 N. Douty (559) 583-2250 EDHanford, California 93230

Corcoran District Hospital (559) 992-50511310 Hanna AvenueCorcoran, California 93212

Madera Community Hospital (559) 675-5500 Main1250 E. Almond (559) 675-5520 EDMadera, California 93637

Oakhurst Community Med Center – Urgent Care Facility (559) 683-2992PO Box 2719Oakhurst, California 93610



Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAmerican Medical Response (559) 585-2000 G 7 yes ALSAmerican Ambulance Service (559) 443-5900 G 30 yes ALSAvenal District Hospital Ambulance (559) 386-4021 G 2 yes ALSCHP (559) 488-4121 A 1 yes ALSClovis City Fire Department (559) 297-2460 G 0 no BLSCoalinga City Fire Department (559) 935-1652 G 2 yes ALSFresno City Fire Department (559) 498-1542 G 0 no BLSFresno County Fire Department (559) 485-7500 G 0 no BLSHanford City Fire Department (559) 585-2545 G 0 no BLSKings County Fire Department (559) 582-3211 G 0 no BLSKingsburg Fire Department (559) 897-5457 G 3 yes ALSLemoore City Fire Department (559) 924-6797 G 0 no BLSMadera County Fire/CDF (559) 661-5497 G 0 no BLSNorth Central FPD (559) 846-5353 G 3 yes ALSPistoresi Ambulance (559) 673-8004 G 6 yes ALSSanger City Fire Department (559) 875-6568 G 2 yes ALSSelma City Fire Department (559) 896-2525 G 2 yes ALSSequoia Safety Council (559) 638-9995 G 4 yes ALSSierra Ambulance (559) 642-0650 G 4 yes ALSSkylife (559) 456-7878 A 1 yes ALS


Imperial County EMS Agency

Local EMS AgencyJohn Pritting, EMS Administrator935 BroadwayEl Centro, California 92243(760) 339-4468

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) Med 2 154.025 154.025 N/A PrimStatewide Medical Coordination


153.860 153.860 N/A PrimDispatch (for each EMS Agency)

N/A N/A N/A N/ADirect to hospitals

154.025 154.025 N/A N/AOther (e.g. tactical, etc.)

N/A N/A N/A N/A

Emergency Department Facilities TelephonePioneers Memorial Hospital (760) 344-2120207 W. Legion RoadBrawley, California 92227

El Centro Regional Medical Center (760) 339-71001415 Ross AvenueEl Centro, California 92243

US Public Health Service Fort Yuma Indian Hospital (760) 572-0217Winterhaven, California

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityBlythe Ambulance Services (760) 922-8460 G 4 yes ALSBombay Beach Rescue Service (760) 354-1129 G 2 yes ALSCalexico Fire Department (760) 768-2150 G 2 yes ALSGold Cross Ambulance Service (760) 353-3380 GA 7 yes ALSRural/Metro Corporation (520) 782-4757 G 14 yes ALSWest Shore Ambulance Service (760) 395-6800 G 2 yes ALS


Kern County EMS Agency

Local EMS AgencyFrederick A. Drew, EMS Administrator1400 H St.Bakersfield, California 93301(661) 861-3200

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) Med 1 468.000 463.000 192.8 Alt Med 2 468.025 463.025 186.2 Alt Med 3 468.050 463.050 192.8 Alt Med 4 468.075 463.075 186.2 Alt Med 5 468.100 463.100 192.8 Alt Med 6 468.125 463.125 186.2 Alt Med 7 468.150 463.150 192.8 Prim Med 9 467.950 462.950 192.8 or Prim

186.2Statewide Medical Coordination 0 0 0 N/ACalling Channel N/A N/A N/A N/A Med 9 462.950 462.950 192.8 or N/A

186.2Dispatch (for each EMS Agency) Several, Not centralizedDirect to hospitals Med 9 462.950 462.950 192.8 or N/A

186.2Other (e.g. tactical, etc.) Med 7 468.150 463.150 192.8 Med-Alert Comm.

Emergency Department Facilities TelephoneBakersfield Memorial Hospital (661) 327-1792PO Box 1888Bakersfield, California 93303

Delano Regional Medical Center (661) 725-4800PO Box 460Delano, California 93216

Kern Medical Center (661) 326-20001830 Flower StreetBakersfield, California 93305

Mercy Healthcare (661) 327-3371PO Box 119Bakersfield, California 93302

San Joaquin Community Hospital (661) 395-30002615 Eye StreetBakersfield, California 93301

Kern Valley Hospital (760) 379-2681PO Box 1628Lake Isabella, California 93240


Kern County EMS Agency

Emergency Department Facilities TelephoneRidgecrest Community Hospital (760) 446-35511081 North China Lake Blvd.Ridgecrest, California 93555

Tehachapi Hospital (661) 822-3241115 West “E” StreetTehachapi, California 93561

Westside District Hospital (661) 763-4211110 East North StreetTaft, California 93268

Antelope Valley Medical Center (661) 949-50001600 West Avenue “J”Lancaster, California 93534

Henry Mayo Newhall Memorial Hospital (661) 253-800023845 West McBean ParkwayValencia, California 91355

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAERA/Health Care Facility (661) 763-1133 G 1 yes BLSBakersfield Fire Department (661) 326-3941 G 0 no BLSCARE Ambulance (760) 376-2271 G 5 yes ALSCalifornia City Fire Department (760) 373-4841 G 0 no BLSDelano Ambulance (661) 725-3374 G 4 yes ALSGolden Empire Ambulance, Inc. (661) 327-9000 GA 12 yes ALSHall Ambulance Service, Inc. (661) 327-4111 G 30 yes ALSKern Ambulance (661) 758-3200 G 3 yes ALSKern County Fire Department (661) 391-7000 G 0 no BLSMercy Air Service Inc. (714) 357-9006 A 1 yes ALSMobile Exploration & Producing (661) 665-3600 G 0 no BLSPoulin Corp.--dba Liberty Ambulance (760) 375-6565 G 8 yes ALSTaft Fire Department (661) 765-4136 G 0 no BLSU.S. Borax Ambulance Service (760) 762-7610 G 1 yes ALSWasco Ambulance (661) 758-5853 G 3 yes ALS


Los Angeles County EMS Agency

Local EMS AgencyVirginia Hastings, EMS Administrator5555 Ferguson Drive, Suite 220Commerce, California 90022(323) 890-7500

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) Shared w/other counties 155.340 N/A N/A N/A HEAR – intra-county 155.280 N/A N/A N/AStatewide Medical Coordination


N/A N/A N/A N/ADispatch (for each EMS Agency)

N/A N/A N/A N/ADirect to hospital

N/A N/A N/A N/AOther (e.g. tactical, etc.) RediNet – For disasters 960.000 N/A N/A N/A

Emergency Department Facilities TelephoneAMI Tarzana Regional Medical Center (818) 881-080018321 Clark StreetTarzana, California 91356

Alhambra Community Hospital (626) 570-1606100 S. Raymond AvenueAlhambra, California 91801

Antelope Valley Medical Center (805) 949-50001600 West Avenue JLancaster, California 93534

Avalon Municipal Hospital (310) 510-0700100 Falls Canyon RoadAvalon, California 90704

Barlow Hospital (213) 250-42002000 Stadium WayLos Angeles, California 90026

Bay Harbor Hospital, Inc. (310) 325-12211437 W. Lomita Blvd.Harbor City, California 90710

Bellflower Doctor’s Hospital (562) 925-83559542 E. Artesia Blvd.Bellflower, California 90706

Bellwood General Hospital (562) 866-561810250 E. Artesia Blvd.Bellflower, California 90706



Emergency Department Facilities TelephoneBeverly Hospital (323) 725-4225309 West Beverly Blvd.Montebello, California 90640

Brotman Memorial Hospital Medical Center (310) 202-47453828 Delmar TerraceCulver City, California 90231

California Medical Center – Los Angeles (213) 748-2411 Main1401 S. Grand Avenue (213) 742-5446 EDLos Angeles, California 90015

Casa Colina Rehabilitation Center (909) 593-7521255 E. Bonita AvenuePomona, California 91767

Cedars Sinai Medical Center (310) 855-6517 Main8700 Beverly Blvd. (310 967-8781 EDLos Angeles, California 90048

Centinela Hospital Medical Center (310) 673-4660 Main555 East Hardy Street (310) 419-8636 EDInglewood, California 90301

Century City Hospital (310) 553-62112070 Century Park EastLos Angeles, California 90067

Charter Behavioral Health System of So CA/Oak (626) 966-16321161 E. Covina Blvd.Covina, California 91724

Charter Behavioral Health System of So CA/Los Altos (562) 421-93113340 Los Coyotes DiagonalLong Beach, California 90808

Charter Community Hospital (310) 860-040121530 South Pioneer Blvd.Hawaiian Gardens, California 90716

Children’s Hospital of Los Angeles (323) 660-2450 Main4650 Sunset Blvd. (323) 660-2450 x4455 ED ManagerLos Angeles, California 90027

Citrus Valley Medical Center (626) 331-7331 EDInter-Community Campus210 W. Bernardino RoadCovina, California 91723

Citrus Valley Medical Center (626) 813-2892 EDQueen of the Valley Campus1115 S. Sunset AvenueWest Covina, California 91790



Emergency Department Facilities TelephoneCity of Hope National Medical Center (626) 359-81111500 E. Duarte RoadDuarte, California 91010

Coast Plaza Doctors Hospital (562) 868-3751 Main13100 Studebaker Road (562) 868-3751 x2158 ED ManagerNorwalk, California 90650

Collage Hospital (310) 924-958110802 College PlaceCerritos, California 90701

Community Hospital of Huntington Park (323) 583-19312623 E. Slauson AvenueHuntington Park, California 90255

Community Hospital of Gardena (310) 323-53301246 155th StreetGardena, California 90247

Covina Valley Community Hospital (626) 339-5452845 N. Lark Ellen AvenueWest Covina, California 91791

CPC Alhambra Hospital (818) 286-11914619 Rosemead Blvd.Rosemead, California 91770

Daniel Freeman Marina Hospital (310) 823-8911 Main4650 Lincoln Blvd. (310) 823-8911 x4381 EDMarina Del Rey, California 90291

Daniel Freeman Memorial Hospital (310) 674-7050333 N. Prairie Avenue (310) 419-8246 ED ManagerInglewood, California 90301

Del Amo Hospital (310) 530-115123700 Camino Del SolTorrence, California 90505

Doctors Hospital of West Covina (818) 338-8481725 S. Orange AvenueWest Covina, California 91790

Doheny Eye Hospital (323) 342-65001450 San Pablo StreetLos Angeles, California 90033

Downey Community Hospital (562) 904-5000 Main11500 Brookshire Avenue (562) 904-5119 ED ManagerDowney, California 90241

East Los Angeles Doctors Hospital (323) 268-5514 Main4060 E. Whittier Blvd. (323) 268-5514 x200 ED ManagerLos Angeles, California 90023



Emergency Department Facilities TelephoneEncino Tarzana Medical Center (818) 995-5000 Main16237 Ventura Blvd. (818) 995-5350 ED ManagerEncino, California 91436

Foothill Presbyterian Hospital (626) 963-8411250 S. Grand AvenueGlendora, California 91740

Garfield Medical Center (818) 573-2222525 N. GarfieldMonterey Park, California 91754

Glendale Adventist Medical Center (626) 409-82021509 Wilson TerraceGlendale, California 91206

Glendale Memorial Hospital & Health Center (626) 502-19001420 South Central Ave.Glendale, California 91204

Granada Hills Community Hospital (626) 368-260910445 Balboa Blvd.Granada Hills, California 91344

Greater El Monte Community Hospital (818) 579-77771701 N. Santa AnitaEl Monte, California 91733

Henry Mayo Newhall Memorial Hospital (805) 253-800023845 McBean ParkwayValencia, California 91355

Hollywood Community Hospital (323) 462-22716245 DeLongpre AvenueHollywood, California 90028

Holy Cross Hospital Medical Center (818) 365-805115031 RinaldiMission Hills, California 91345

Hospital of the Good Samaritan (213) 977-2121 Main616 South Witmer Street (213) 977-2121 x2045 ED ManagerLos Angeles, California 90017

Huntington East Valley Hospital (626) 335-0231150 W. Alosta AvenueGlendora, California 91740

Huntington Memorial Hospital (626) 397-5000100 W. California Blvd.Pasadena, California 91105

Kaiser Hospital – Baldwin Park (626) 851-73001011 Baldwin Park Blvd.Baldwin Park, California 91706



Emergency Department Facilities TelephoneKaiser Hospital – Bellflower (562) 461-30009400 E. Rosecrans AvenueBellflower, California 90706

Kaiser Hospital – Harbor City (310) 325-551125825 S. Vermont AvenueHarbor City, California 90710

Kaiser Hospital – Panorama City (818) 375-200013652 Cantara StreetPanorama City, California 91402

Kaiser Hospital – Los Angeles (323) 667-40114867 Sunset Blvd.Los Angeles, California 90027

Kaiser Hospital – West Los Angeles (323) 857-20006041 Cadillac AvenueLos Angeles, California 90034

Kaiser Hospital – Woodland Hills (818) 719-20005601 De Soto AvenueWoodland Hills, California 91367

Kenneth Norris, Jr. Cancer Hospital (213) 764-30001441 Eastlake AvenueLos Angeles, California 90033-0804

LA County – Harbor-UCLA Medical Center (310) 222-23451000 W. Carson StreetTorrance, California 90509

LA County – High Desert Hospital (805) 948-858144900 N. 60 th Street WestLancaster, California 93536

LA County – King/Drew Medical Center (310) 668-451912021 Wilmington AvenueLos Angeles, California 90059

LA County – Olive View Medical Center (818) 364-4320 ED14445 Olive View DriveSylmar, California 91342

LA County – Rancho Los Amigos Hospital (310) 940-70337601 East Imperial HighwayDowney, California 90242

LA County + USC Medical Center (323) 226-68071200 N. State StreetLos Angeles, California 90033

Lakewood Regional Medical Center (566) 602-6800 Main3700 E. South Street (566) 602-6716 EDLakewood, California 90712



Emergency Department Facilities TelephoneLancaster Community Hospital (805) 948-478143830 N. 10 th Street WestLancaster, California 93534

Las Encinas Hospital (626) 795-99012900 E. Del Mar Blvd.Pasadena, California 91107

Lincoln Hospital Medical Center (323) 261-1181443 S. Soto StreetLos Angeles, California 90033

Little Company of Mary Hospital (310) 540-76764101 Torrance Blvd.Torrance, California 90503

Long Beach Community Hospital (562) 498-10001720 Terminio AvenueLong Beach, California 90804

Long Beach Doctors Hospital (562) 599-35511725 Pacific AvenueLong Beach, California 90813

Long Beach Memorial Medical Center (562) 933-23112801 Atlantic AvenueLong Beach, California 90806

Los Angeles Community Hospital (323) 267-04774081 E. Olympic Blvd.Los Angeles, California 90023

Memorial Hospital of Gardena (310) 532-42001145 W. Redondo Beach Blvd.Gardena, California 90247

Memorial Hospital of Glendale (626) 502-23441420 S. Central AvenueGlendale, California 91204

Methodist Hospital of Southern California (818) 445-4441300 W. Huntington DriveArcadia, California 91007

Metropolitan State Hospital (562) 863-701111400 S. Norwalk Blvd.Norwalk, California 90650

Midway Hospital Medical Center (323) 938-31615925 San VicenteLos Angeles, California 90019

Mission Community Hospital Panorama City (818) 787-222214850 Roscoe Blvd.Panorama City, California 91402



Emergency Department Facilities TelephoneMission Community Hospital San Fernando (818) 361-7331700 Chatsworth DriveSan Fernando, California 91340

Mission Hospital of Huntington Park (323) 582-82613111 E. FlorenceHuntington Park, California 90255

Monrovia Community Hospital (626) 359-8341323 S. Heliotrope AvenueMonrovia, California 91016

Monterey Park Hospital (818) 570-5758900 S. Atlantic Blvd.Monterey Park, California 91754

Motion Picture & Television Hospital (818) 876-188823388 Mulholland DriveWoodland Hills, California 91364

Newhall Community Hospital (805) 259-455522607 6th StreetNewhall, California 91321

Northridge Hospital Medical Center-Rosco Campus (818) 885-850018300 Roscoe Blvd.Northridge, California 91328

Northridge Hospital Med Center-Sherman Way Campus (818) 997-010114500 Sherman CircleVan Nuys, California 91405

Orthopedic Hospital (213) 742-11612400 S. Flower StreetLos Angeles, California 90007

Pacific Alliance Medical Center (213) 624-8411531 W. College StreetLos Angeles, California 90012

Pacific Hospital of Long Beach (562) 595-19112776 Pacific AvenueLong Beach, California 90806

Pacifica of the Valley Hospital (818) 767-33109449 San Fernando RoadSun Valley, California 91352

Pioneer Hospital (310) 865-629117831 S. Pioneer Blvd.Artesia, California 90701

Pomona Valley Medical Center (909) 865-98281798 N. Garey AvenuePomona, California 91767



Emergency Department Facilities TelephonePresbyterian Intercommunity Hospital (562) 698-081112401 E. WashingtonWhittier, California 90602

Providence St. Joseph Medical Center (818) 843-5111501 S. Buena Vista StreetBurbank, California 91505

Queen of Angels/Hollywood Presbyterian (213) 413-30001300 N. Vermont AvenueLos Angeles, California 90027

Robert F. Kennedy Medical Center (310) 973-17114500 W. 116 th StreetHawthorne, California 90250

San Dimas Community Hospital (909) 599-68111350 W. Covina Blvd.San Dimas, California 91773

San Gabriel Valley Medical Center (626) 289-5454218 S. Santa Anita StreetSan Gabriel, California 91776

San Pedro Peninsula Hospital (310) 514-53501300 W. 7th StreetSan Pedro, California 90732

San Vicente Hospital (323) 937-25046000 San Vicente Blvd.Los Angeles, California 90036

Santa Marta Hospital (323) 266-6500319 N. Humphrey AvenueLos Angeles, California 90022

Santa Monica-UCLA Medical Center (310) 319-47651250 16th StreetSanta Monica, California 90404

Santa Teresita Hospital (626) 359-3243819 Buena Vista StreetDuarte, California 91010

Sherman Oaks Community Hospital (818) 981-71114929 Van Nuys Blvd.Sherman Oaks, California 91403

Shriner Hospital for Crippled Children (213) 388-31513160 Geneva StreetLos Angeles, California 90020

St. Francis Medical Center (310) 603-60603630 E. Imperial HighwayLynwood, California 90262



Emergency Department Facilities TelephoneSt. John’s Hospital/Health Center (310) 829-86092103 Santa Monica Blvd.Santa Monica, California 90404

St. Luke Medical Center (626) 797-11412632 E. Washington Blvd.Pasadena, California 91109

St. Mary Medical Center (562) 491-90001050 Linden AvenueLong Beach, California 90813

St. Vincent Medical Center (213) 484-73012131 W. 3rd StreetLos Angeles, California 90057

Suburban Medical Center (562) 531-311016453 Colorado AvenueParamount, California 90723

Tarzana Rehabilitation Center (818) 831-42615650 Reseda Blvd.Tarzana, California 91356

Temple Community Hospital (213) 382-7252235 N. Hoover StreetLos Angeles, California 90004

Torrance Memorial Medical Center (310) 325-91103330 Lomita Blvd.Torrance, California 90505

UCLA Neuropsychiatric Institute & Hospital (310) 825-0511760 Westwood PlazaLos Angeles, California 90024-1759

UCLA Medical Center (310) 825-211110833 Le Conte AvenueLos Angeles, California 90024

USC – University Hospital (323) 342-85001500 San Pablo StreetLos Angeles, California 90033

VA Medical Center-Long Beach (562) 494-26115901 E. 7th StreetLong Beach, California 90822

VA Medical Center-Sepulveda (818) 891-771116111 Plummer StreetSepulveda, California 91343

VA Outpatient Clinic-Los Angeles (213) 253-5000351 East Temple StreetLos Angeles, California 90012



Emergency Department Facilities TelephoneVA Medical Center-West Los Angeles (310) 478-371111301 Wilshire Blvd.West Los Angeles, California 90073

Valley Presbyterian Hospital (818) 782-66015107 Vanowen StreetVan Nuys, California 91405

Van Nuys Hospital (310) 787-012315220 Vanowen StreetVan Nuys, California 91405

Vencor Hospital-Los Angeles (310) 642-03965525 W. SlausonLos Angeles, California 90056

Verdugo Hills Hospital (626) 790-71001812 Verdugo Blvd.Glendale, California 91208

Washington Medical Center (310) 391-060112101 W. Washington Blvd.Culver City, California 90230

West Hills Regional Medical Center (818) 712-41997300 Medical Center DriveWest Hills, California 91307

White Memorial Medical Center (323) 268-50001720 Cesar Chavez AvenueLos Angeles, California 90033

Whittier Hospital Medical Center (562) 945-356115151 Janine DriveWhittier, California 90606

Woodruff Community Hospital (562) 421-82413800 Woodruff AvenueLong Beach, California 90808

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAPT Ambulance Company (323) 299-3980 G 28 yes ALSAlhambra Fire Department (626) 570-5190 G 2/2 yes ALSAllen Ambulance Service (323) 732-9156 G 1 yes BLSAMR-Antelope Valley Division (800) 433-7522 G 20 yes ALSAMR-Glendale/San Fernando Division (310) 851-7710 G 40 yes ALSAMR-Los Angeles Division (310) 851-7710 G 89 yes ALSAMR-San Gabriel Valley Division (310) 851-7710 G 63 yes ALSAMR-Metro/South Division (310) 851-7710 G 69 yes ALSArcadia Fire Department (626) 574-5102 G 2 yes ALSAvalon Fire Department (310) 510-0203 G 1 yes BLSBeverly Hills Fire Department (310) 281-2703 G 4 yes ALSBowers Ambulance Service (310) 591-3371 G 52 yes ALSBurbank Fire Department (818) 847-8611 G 2/1 yes ALS



Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityCompton Fire Department (310) 605-5670 G 4 yes ALSCulver City Fire Department (310) 253-5900 G 2 yes ALSDowney Fire Department (562) 904-7344 G 2 yes ALSEl Segundo Fire Department (310) 217-9643 G 2 yes ALSEmergency Ambulance Service (714) 990-1742 G 9 yes BLSESI Ambulance Service (562) 692-5775 G 5 yes BLSGardena Fire Department (310) 217-9643 G 2 yes ALSGerber Ambulance Service (310) 533-1133 G 16 yes ALSGuardian Ambulance Corporation (626) 792-3688 G 10 yes ALSHall Ambulance Service, Inc. (805) 327-4111 G 12 yes ALSHermosa Beach Fire Department (310) 376-2479 G 2 yes ALSHuntington Ambulance Service (310) 904-1550 G 2 yes BLSInglewood Fire Department (310) 412-5350 G 4 yes ALSLiberty Ambulance Service (760) 375-6565 G 1 yes BLSLos Angeles City Fire Department (213) 485-6094 GWA 80 yes ALSLos Angeles Co. Fire Department (323) 881-2401 GWA 69 no ALSLos Angeles County Sheriff Department (323) 264-7084x395 A 1 yes ALSLos Angeles County Lifeguard (310) 577-5700 GW 2 yes ALSLa Verne Fire Department (909) 596-5991 G 2 yes ALSLong Beach Fire Department (562) 570-2500 G 8 yes ALSManhattan Beach Fire Department (310) 545-5621 G 2 yes ALSMauran Ambulance Service (818) 365-3182 G 4 yes BLSMcCormick Ambulance & Paramedic Ser. (310) 798-3300 G 8 yes ALSMed-Event Medical (909) 880-2979 G 12 yes BLSMedReach Ambulance (310) 781-9395 G 4 yes BLSMonrovia Fire Department (626) 303-3473 G 1 no ALSMontebello Fire Department (323) 887-4510 G 2 no ALSMonterey Park Fire Department (626) 307-1264 G 2 yes ALSPasadena Fire Department (626) 405-4112 G 4 yes ALSRedondo Beach Fire Department (310) 318-0663 G 2 no ALSSan Gabriel Fire Department (626) 308-2880 G 2 yes ALSSan Marino Fire Department (626) 300-0735 G 1 yes ALSSanta Fe Springs Fire Department (562) 944-9713 G 1 no ALSSanta Monica Fire Department (310) 458-8658 G 6 no ALSSchaefer Ambulance. Service, Inc (323) 468-1652 G 51 yes ALSSierra Madre Fire Department (626) 355-1401 G 1/1 yes BLSTorrance Fire Department (310) 781-7018 G 4/2 no ALSWest Covina Fire Department (626) 814-8505 G 4 no ALS


Marin County EMS Agency

Local EMS AgencyArdith J. Hamilton, EMS Administrator161 Mitchell Blvd. , Suite 100San Rafael, California 94903(415) 499-6871

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time)

155.100 155.835 141.3* PrimStatewide Medical Coordination



155.100 155.835 141.3 N/ADirect to hospitals

155.355 155.355 114.8 PrimOther (e.g. tactical, etc.)

N/A N/A N/A N/A*Many other sites

Emergency Department Facilities TelephoneNovato Community Hospital (415) 899-95201625 Hill RoadNovato, California 94947

Kaiser Hospital, San Rafael (415) 444-240099 Monticello RoadSan Rafael, California 94903

Marin General Hospital (415) 925-7200PO Box 8010San Rafael, California 94912-8010

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAmerican Medical Response (415) 499-9191 G 10 yes ALSCoastal Ambulance (415) 868-0622 G 1 yes BLSCorte Madera Fire Department (415) 925-5077 G 1 yes ALSMarin County Fire Department. (415) 499-3742 G 4 yes ALSNovato FPD (415) 898-9719 GW 3 yes ALSRedwood Empire Life Support (707) 544-7771 G 4 yes ALSRoss Valley Paramedic Authority (415) 258-4686 G 1 yes BLSS. Marin Emergency Med Paramedic System (415) 389-4144 G 4 yes ALSSan Rafael Fire Department (415) 485-3307 G 3 yes ALSSt. Joseph's Ambulance Service (415) 460-6020 G 3 yes BLSStinson Beach Ambulance (415) 868-0622 G 1 yes BLS


Merced County EMS Agency

Local EMS AgencyChuck Baucom, EMS Administrator260 East 25 th StreetMerced, California 95340(209) 725-3537

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) Med 8 468.175 463.175 N/A N/AStatewide Medical Coordination




N/A N/A N/A N/AOther (e.g. tactical, etc.) Fire White for disasters 155.400 N/A N/A N/A CALCORD 156.075 156.075 156.7 N/A

Emergency Department Facilities TelephoneSutter Merced Medical Center (209) 385-7000301 E. 13 th StreetMerced, California 95340

Mercy Hospital (209) 384-64442740 M StreetMerced, California 95346

Dos Palos Memorial Hospital (209) 392-61212118 Marguerite St.Dos Palos, California 93620

Memorial Hospital of Los Banos (209) 826-0591520 West ILos Banos, California 93635

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAmerican Medical Response (209) 576-1984 G 3 yes ALSAir Medical Team (209) 576-3939 A 1 yes ALSAtwater Fire Department (209) 357-6353 G 0 no BLSCALSTAR (800) 252-5050 A 4 yes ALSLos Banos Fire Department (209) 827-7025 G 0 no BLSMediflight of Northern California (209) 572-7050 A 3 yes ALSMerced City Fire Department (209) 385-6897 G 0 no BLSMerced Co. Fire/CDF (209) 385-7345 G 0 no BLSRiggs Ambulance (209) 725-7000 G 14 yes ALSSkylife of Central California (209) 292-5248 A 2 yes ALSWestside Ambulance (209) 520-1790 pgr G 3 yes ALS


Monterey County EMS Agency

Local EMS AgencyChris Le Venton, EMS Administrator19065 Portola Drive, Suite ISalinas, California 93908(831) 755-5013

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) Med 1 468.000 463.000 173.8 N/A Med 2 468.025 463.025 173.8 N/A Med 5 468.100 463.100 173.8 N/A Med 6 468.125 463.125 173.8 N/A Med 7 468.150 463.150 173.8 N/AStatewide Medical Coordination

0 0 0 N/ACalling Channel

N/A N/A N/A N/ADispatch (for each EMS Agency) AMR – Med 9 467.950 462.950 N/A N/A AMR – Med 10 467.975 462.975 N/A N/A Fire Service – first responders 156.240 154.995 N/A N/ADirect to hospitals Disaster only 800 MHz N/A N/A N/AOther (e.g. tactical, etc.)

N/A N/A N/A N/A

Emergency Department Facilities TelephoneCommunity Hospital of Monterey Peninsula (831) 624-5311PO Box HHMonterey, California 93942

Salinas Valley Memorial (831) 757-4333450 East Romie LaneSalinas, California 93901

Natividad Medical Center (831) 755-41111330 Natividad RoadSalinas, California 93906

Mee Memorial Hospital (831) 385-6000300 Canal StreetKing City, California 93930

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT Capacity

AMR (831) 883-3280 G 27 yes ALSAmerican Medical Transport (831) 384-3800 G 4 yes BLSAromas Fire District (831) 727-3130 G 0 no BLSBig Sur Volunteer Fire Brigade (831) 667-2113 G 0 no BLSCHP (831) 455-1822 GA 0 no ALSCachagua FPD (831) 659-7700 G 0 no BLSCarmel Highlands FPD (831) 624-2374 G 0 no BLSCarmel Regional Fire Ambulance (831) 624-7881 G 5 yes ALSCarmel Valley FPD (831) 659-2021 G 1 yes ALS


Monterey County EMS Agency

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT Capacity

Carmel-by-the-Sea Fire Department (831) 624-1718 G 1 yes BLSCypress FPD (831) 647-6208 G 0 no BLSFort Hunter Liggett Fire Department (831) 386-2517 G 0 no BLSMarina Department of Public Safety (831) 384-5225 G 0 no BLSMid Coast Fire Brigade (831) 624-3473 G 0 no BLSMid-Carmel Valley FPD (831) 624-5907 G 0 no BLSMonterey Fire (831) 646-3900 G 0 no BLSNorth County FPD (831) 633-2578 G 0 no BLSNSAMB Fire Department (831) 656-2334 G 0 no BLSPacific Grove Fire Department (831) 648-3110 G 0 no BLSPebble Beach CSD Fire Department (831) 375-4204 G 0 no BLSSalinas Fire Department (831) 758-7261 G 0 no ALSSalinas Rural Fire District (831) 455-1828 G 0 no BLSSan Ardo Volunteer Fire Department (831) 627-2465 G 0 no BLSSeaside Fire Department (831) 899-6262 G 0 no BLSSpreckels Volunteer Fire Company (831) 455-2211 G 0 no ALS


Mountain Valley EMS Agency

Local EMS AgencySteve Andriese, EMS Administrator1101 Standiford Ave., #D1Modesto, California 95350(209) 529-5085

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time)Alpine Med 1 468.000 463.000 100.0 Prim Med 2 468.025 463.025 179.9 PrimAmador Med 13 458.425 453.425 100.0 Prim Med 3 468.250 463.050 167.9 Alt Med 8 468.175 463.175 100.0 Alt Med 9 468.950 463.950 100.0 AltCalaveras Med 3 468.050 463.050 107.2 Alt Med 9 467.950 462.950 167.9 PrimMariposa Med 8 468.175 463.175 123.0 Prim Med 14 456.425 451.425 149.9 AltStanislaus Med 1 468.000 463.000 179.9 Med 5 468.100 463.100 179.9All Hospitals VHF Med 155.385 88.5Statewide Medical Coordination N/A N/A N/A N/ACalling Channel N/A N/A N/A N/ADispatch (for each EMS Agency)Alpine Medical Markleeville 154.100 153.800 107.2 Prim Bear Valley 154.100 153.800 131.8 PrimAlpine Fire Kirkwood-Camino (CDF) 159.225 151.190 123.0 Prim Bear Valley-San Andreas (CDF) 159.450 151.175 156.7 PrimAmador Medical VHF 159.225 151.190 123.0 Alt Med 10 467.975 462.975 100.0 PrimAmador Fire Camino (CDF) 159.225 151.190 123.0 PrimCalaveras Medical Med 9 468.950 463.980 167.9 PrimCalaveras Fire San Andreas (CDF) 159.450 151.175 110.9 PrimMariposa Medical Mariposa CDF 151.460 159.390 146.2 Prim Mariposa CDF-Med 14 451.425 451.425 179.9 AltStanislaus Medical Med 10 467.975 462.975 179.9 Prim AMR 155.295 55.295 88.5 Duplex Stanislaus Fire Modesto City 154.145 155.940 123.0 Stanislaus County Fire 153.770 153.770 123.0 DuplexDirect to hospitals N/A N/A N/A N/AOther (e.g. tactical, etc.) N/A N/A N/A N/A



Emergency Department Facilities TelephoneSutter Amador Hospital (209) 223-7500810 Court StreetJackson, California 95642

Mark Twain St. Joseph Hospital (209) 754-3521768 Mountain Ranch RoadSan Andreas, California 95249

John C. Fremont Hospital (209) 966-36315189 Hospital RoadMariposa, California 95338

Emanuel Medical Center (209) 667-4200825 Delbon AvenueTurlock, California 95380

Memorial Medical Center (209) 526-45001800 Coffee RoadModesto, California 95355

Oak Valley Hospital (209) 847-3011350 South OakOakdale, California 95361

Doctors Medical Center (209) 578-12111441 Florida AvenueModesto, California 95350

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAMR (209) 524-8001 G 26 yes ALSAir Medical Team (209) 576-3939 A 1 yes ALSAltaville-Melones FPD (209) 736-2331 G 0 no BLSAmador FPD (209) 223-6391 G 0 no BLSAmerican Legion Ambulance (209) 223-2963 G 6 yes ALSBear Valley Fire Department (209) 753-2232 G 0 no BLSBlue Mountain Medical Volunteer WP FPD (209) 293-7905 G 0 no BLSBurbank-Paradise FPD (209) 523-1129 G 0 no BLSCalifornia Department of Forestry-Sutter (209) 267-5215 G 0 no BLSDepartment of Forestry (209) 966-3622 G 0 no BLSCalaveras Co. Fire Department (209) 754-6639 G 0 no BLSCeres Fire Department (209) 538-5701 G 0 no BLSCity of Angels (209) 736-4081 G 0 no BLSCopperopolis FPD (209) 785-2329 G 0 no BLSDenair Fire District (209) 632-5032 G 0 no BLSEbbetts Pass FPD (209) 795-1646 G 0 no BLSGlenco Rlrd Flat FPD (209) 286-1536 G 0 no BLSHughson FPD (209) 883-2863 G 0 no BLSHughson Paramedic Ambulance Company (209) 883-9177 G 5 yes ALSIone Volunteer Fire Department (209) 274-4548 G 0 no BLSJackson Fire Department (209) 223-1646 G 0 no BLSJackson Valley FPD (209) 763-5848 G 0 no BLSJenny Lind FPD (209) 786-2227 G 0 no BLSKeyes FPD (209) 634-7690 G 0 no BLS



Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMTCapacityKirkwood FPD (209) 258-4444 G 0 no BLSMariposa County Sheriff's Office (209) 966-3615 G 0 no BLSMariposa County Fire Department (209) 966-4330 G 0 no BLSMarkleevile Volunteer Fire Department (916) 694-2357 G 0 no BLSMedi-Flight of Northern California (209) 572-7050 A 2 yes ALSMercy Medical Transport (209) 966-5762 G 3 yes ALSModesto City Fire Department (209) 572-9590 G 0 no BLSMokelumne Hill FPD (209) 286-1536 G 0 no BLSMountain View FPD (209) 634-4766 G 0 no BLSMountain Ranch FPD (209) 754-4330 G 0 no BLSMurphys FPD (209) 728-3864 G 0 no BLSNewman Fire Dept. (209) 862-1716 G 0 no BLSOak Valley District Ambulance (209) 847-3011 G 4 yes ALSOakdale City Fire Dept. (209) 847-5904 G 0 yes BLSOakdale Rural FPD (209) 847-6898 G 0 no BLSPatterson District Ambulance (209) 892-2618 G 3 yes ALSPine Grove Conservation (209) 296-7591 G 0 no BLSPlymouth Vol. Fire Department (209) 245-4833 G 0 no BLSSalida FPD (209) 545-0365 G 0 no BLSSan Andreas Ambulance (209) 754-3583 G 2 yes ALSSan Andreas FPD (209) 754-4693 G 0 no BLSStanislaus Consolidated Fire District (209) 525-4650 G 0 no BLSSutter Creek FPD (209) 267-0285 G 0 no BLSTurlock City Fire Department (209) 668-5800 G 0 no BLSTurlock Rural FPD (209) 632-3953 G 0 no BLSValley Home FPD (209) 847-8556 G 0 no BLSValley Springs Ambulance (209) 772-2924 G 3 yes ALSValley Springs Fire Company (209) 786-2697 G 0 no BLSWest Stanislaus FPD (209) 892-5621 G 0 no BLSWestport FPD (209) 537-1391 G 0 no BLSWoodfords Fire Department (916) 694-2750 G 0 no BLSWoodland Avenue FPD (209) 524-4239 G 0 no BLS


Napa County EMS Agency

Local EMS AgencyBonny Martignoni, EMS Administrator1500 Third Street, Suite BNapa, California 94559(707) 253-4345

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) MedNet 155.835 155.100 131.8* 155.100Statewide Medical Coordination 127.3**


N/A N/A N/A N/ADispatch (for each EMS Agency) Napa 4 N/A N/A N/A 155.805/City Fire Dept.131.8Direct to hospitals Cellular 155.355 155.355 131.8 N/AOther (e.g. tactical, etc.)

N/A N/A N/A N/A

Emergency Department Facilities TelephoneQueen of the Valley Hospital (707) 252-44111000 Trancas StreetNapa, California 94558

Saint Helena Hospital (707) 963-3611650 Sanitarium RoadDeer Park, California 94576

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAngwin Volunteer Ambulance (707) 965-2468 G 2 yes BLSCHP Helicopter (707) 257-0103 A 1 yes ALSMercy St. Helena Ambulance (707) 963-1510 G 4 yes ALSNapa City Fire Department (707) 257-9593 G 0 no ALSPiner's Ambulance (707) 224-3123 G 8 yes ALS

*131.8 T&R Atlas Pic** 127.3 T and 131.8 R – MT ST Helena


North Coast EMS AgencyLocal EMS AgencyLarry Karsteadt, EMS Administrator86 E StreetEureka, California 95501(707) 445-2081


N/A N/A N/A N/AStatewide Medical Coordination

N/A N/A N/A N/A

Calling ChannelN/A N/A N/A N/A

Dispatch (for each EMS Agency) Del Norte Ambulance 155.175 N/A N/A Crescent Fire Protection Chief 154.250 N/A N/A Arcata/Mad River Ambulance Service 155.175 N/A N/A Arcata Fire Department 46.06 N/A N/A Eureka Fire Department 154.43 N/A N/A Fortuna Fire Department 33.70 N/A N/A Garberville Fire Department 46.22 N/A N/A Humboldt Fire District #1 154.325 N/A N/A Loleta Fire Department 154.010 N/A N/A Redwood Empire Life Support 155.205 N/A N/A Clearlake Oaks Fire Department 155.025 N/A N/A Kelseyville Fire Protection District 155.025 N/A N/A Lakeshore Fire Protection District 155.025 N/A N/A Nice Volunteer Fire Department 154.175 N/A N/A Upper Lake Fire Protection District 155.025 N/A N/ADirect to hospitals

N/A N/A N/A N/AOther (e.g. tactical, etc.)

N/A N/A N/A N/A

Emergency Department Facilities TelephoneJerold Phelps Community Hospital N/A733 Cedar StreetGarberville, California 95542

Mad River Community Hospital (707) 822-3261PO Box 1115Arcata, California 95518

Redbud Hospital (707) 994-6486PO Box 6720Clearlake, California 95422

Redwood Memorial Hospital (707) 725-33613300 Renner DriveFortuna, California 95540

St. Joseph Hospital (707) 445-81212700 Dolbeer StreetEureka, California 95501


North Coast EMS Agency

Emergency Department Facilities TelephoneSutter Coast Hospital (707) 464-8511PO Box 2009Crescent City, California 95531

Sutter-Lakeside Hospital (707) 263-56515176 Hill RoadLakeport, California 95453

The General Hospital (707) 445-51112200 Harrison AvenueEureka, California 95501

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityArcata Mad River Ambulance Inc. (707) 822-3353 G 4 yes ALSCity Ambulance of Eureka Inc. (707) 445-4907 G 5 yes ALSClearlake Oaks Fire Department (707) 998-3294 G 2 yes ALSDel Norte Air Ambulance (707) 487-1116 A 1 yes ALSDel Norte Ambulance Inc. (707) 487-1116 GA 5 yes ALSFortuna Rescue (707) 445-4907 G 2 yes ALSGarberville Rescue (707) 445-4907 G 2 yes ALSHoopa Health Association EMS (916) 625-4261 G 3 yes ALSKelseyville FPD (707) 279-4268 G 2 yes ALSLakeport Fire Department (707) 263-4396 G 1 yes ALSLakeshore Fire Department (707) 994-2170 G 0 no ALSLoleta Fire Department (707) 733-5407 G 0 no ALSLucerne Fire Department (707) 274-3100 G 2 yes ALSNice Fire & Rescue Department (707) 274-8834 G 1 yes BLSOrleans Fire Department (916) 627-3493 G 0 no ALSRedwood Empire Life Support (707) 263-4596 G 8 yes ALSShelter Cove Fire Department (707) 986-7507 G 0 no ALSSouth Trinity Area Rescue (707) 574-6616 G 2 yes ALSSouthlake County FPD (707) 987-3089 G 3 yes ALSUpper Lake FPD (707) 275-2446 GW 0 no ALS


Northern California EMS Agency

Local EMS AgencyDan Spiess, Chief Executive Officer970 Executive WayRedding, California 96002(530) 221-7900

Channel Use TX-Freq RX-Freq CTCSS* Prim/AltLocal Medical Coordination (real time)

Antelope Peak 468.050 463.050 1-8 N/ABass Mountain 468.075 463.075 1-8 N/ABeckwourth Mountain 468.175 463.175 1-8 N/ABig Valley 468.100 463.100 1-8 N/ABloomer Mountain 468.175 463.175 1-8 N/ABunchgrass/Hatchet 468.175 463.175 1-8 N/ACedarville 468.150 463.150 1-8 N/ADyer Mountain 468.150 463.150 1-8 N/AGrey Butte Mountain 468.000 463.000 2,3,4,5 N/AHayfork Bally 468.125 463.125 (1),2 N/AHough Mountain 468.125 463.125 1-8 N/ALikely Mountain 468.100 463.100 1-8 N/AMahogany Peak 468.175 463.175 1-8 N/AMt. Ashland 468.100 463.100 1-8 N/AOregon Mountain 468.175 463.175 (1), 8 N/ARed Hill 468.125 463.125 5 N/AShasta Bally 467.975 462.975 8 N/AShasta Bally 468.050 463.050 (1),2,4,5 N/ASheaffer Mountain 468.075 463.075 1-8 N/ASignal Hill/Del Gallo 468.150 463.150 1-8 N/ASlater Butte 468.125 463.125 1-8 N/ASouthfork Mountain 468.025 463.025 1-8 N/ASt. Johns 468.025 463.025 8 N/ATuscan Butte 468.100 463.100 (1,4,5), 8,5 N/AWest Prospect Peak 468.000 463.000 1,6,7,8 N/A

Statewide Medical Coordination0 0 0 N/A

Calling Channel0 0 0 N/A

Dispatch (for each EMS Agency)Trinity Center Fire Department 155.925 155.115 N/A N/AMt. Shasta Ambulance 155.010 155.010 N/A N/ADownieville Fire Department 46.200 46.200 N/A N/ALewiston Fire Department 155.925 155.115 N/A N/AHappy Camp Ambulance Service 468.125 463.125 N/A N/APeninsula Fire District Ambulance 153.770 154.190 N/A N/ANorthern Siskiyou Ambulance 155.175 155.175 N/A N/ASurprise Valley Hospital Ambulance 158.835 158.835 N/A N/ATrinity County Life Support 155.925 155.115 N/A N/AWestside Ambulance 468.025 463.025 N/A N/AModoc Medical Center 154.515 154.515 N/A N/AButte Valley Ambulance N/A N/A N/A N/ARedding Medical Center 467.975 462.975 N/A Prim

468.050 463.050 N/A AltAmerican Medical Response 467.975 462.975 N/A Prim

468.050 463.050 N/A Alt

*1) 131.8 2) 136.5 3) 141.3 4) 146.2 5) 152.4 6) 156.7 7) 162.2 8) 167.9 (#) – out.



Channel Use TX-Freq RX-Freq CTCSS Prim/AltFirst Responder 457.750 457.750 N/A N/A

468.075 463.075 N/A N/A468.050 463.050 N/A N/A

Sierraville Ambulance 154.385 154.385 N/A N/ACity of Etna Ambulance N/A N/A N/A N/ASierra Life Support 468.075 463.075 N/A N/AMountain EMS, Inc. 468.075 463.075 N/A N/AWestwood Fire Department 468.150 463.150 N/A N/AEnloe Hospital Chico 467.950 462.950 N/A N/A Colusa 153.905 153.905 N/A N/A Glenn 468.025 463.025 N/A N/A Air 460.675 460.675 N/A N/ASierra Valley District Hospital 45.340 39.860 N/A N/ASeneca District Hospital Ambulance 468.150 463.150 N/A N/ABurney Fire Department Ambulance 154.430 154.430 N/A N/ASalmon River Vol. Fire Rescue Co. 156.105 154.250 N/A N/AMcCloud Fire Dept. Ambulance 151.325 151.325 N/A N/AHyampom Fire Departmnet 155.925 155.115 N/A N/APlumas District Hospital Ambulance 468.125 463.125 PL1 N/A

Direct to hospitalsMayers Memorial Hospital 468.175 463.175 N/A N/AOroville Hospital 468.175 463.175 N/A N/ASt. Elizabeth Hospital 468.100 463.100 N/A Prim

467.950 462.950 N/A AltLassen Community (Med 4) PL3Indian Valley Hospital 468.150 436.150 N/A Prim

468.125 463.125 N/A AltMercy Health Care North 467.975 462.975 N/A N/AEastern Plumas Health Care (Med 8) 155.265 155.265 PL1 N/A

Other (e.g. tactical, etc.) Varied by each locale and agency

Emergency Department Facilities Telephone Fairchild Medical Center (530) 842-4121444 Bruce StreetYreka, California 96097

Seneca District Hospital (530) 258-2151PO Box 737Chester, California 96020

St. Elizabeth Hospital (530) 529-80002550 Sister Mary Columba DriveRed Bluff, California 96080

Indian Valley Hospital (530) 284-7191184 Hot Springs RoadGreenville, California 95947

Mercy Medical Center Mt. Shasta (530) 926-6111PO Box 239Mt. Shasta, California 96067


Northern California EMS AgencyEmergency Department Facilities TelephoneTrinity Hospital (530) 623-5541PO Box 1229Weaverville, California 96093

Mayers Memorial Hospital (530) 336-5511PO Box 459Fall River Mills, California 96028

Plumas District Hospital (530) 283-21211065 Bucks Lake RoadQuincy, California 95971

Colusa Community Hospital (530) 458-5821199 E. Webster StreetColusa, California 95932

Surprise Valley Hospital Ambulance (530) 279-6111PO Box 246Cedarville, California 96104

Feather River Hospital (530) 877-93615974 Pentz RoadParadise, California 95969

Glenn Medical Center (530) 934-18001133 W. Sycamore StreetWillows, California 95988

Modoc Medical Center (530) 233-5131228 McDowell StreetAlturas, California 96101

Enloe Hospital (530) 891-73001531 EsplanadeChico, California 95926

Eastern Plumas Health Care (530) 832-4277500 First AvenuePortola, California 96122

Lassen Community Hospital (530) 257-5325560 Hospital LaneSusanville, California 96130

Oroville Hospital (530) 533-85002767 Olive HighwayOroville, California 95966

Redding Medical Center (530) 244-5400PO Box 496072Redding, California 96049

Mercy Medical Center Redding (530) 225-6000PO Box 496009Redding, California 96049-6072



Emergency Department Facilities TelephonePlumas District Hospital (530) 283-21211065 Bucks Lake RoadQuincy, California 95971

Sierra Valley District Hospital (530) 993-1225PO Box 178Loyalton, California 96118

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAmerican Medical Response (530) 246-9111 G 8 yes ALSAnderson Fire Department (530) 378-6699 G 0 no BLSBurney Fire District (530) 335-2212 G 2 yes ALSButte Co. Fire Department (530) 538-7111 G 0 no BLSButte Valley Ambulance Service (530) 397-2105 G 1 yes BLSCDF/ Shasta Co. Fire Department (530) 225-2418 G 0 no ALSDunsmuir Fire Department (530) 235-2551 G 0 no ALSEtna Ambulance (530) 467-5256 G 2 yes ALSRed Bluff Fire Department (530) 527-1126 G 0 no BLSCoffee Creek Volunteer Fire Department (530) 266-3516 G 1 yes ALSCottonwood FPD (530) 347-4737 G 0 no BLSDownieville FPD (530) 289-3333 G 1 yes BLSEastern Plumas Health Care (530) 832-4277 G 2 yes ALSEnloe Hospital (530) 891-7418 GA 7 yes ALSFall River Mills Fire Department (530) 336-6117 G 0 no BLSFirst Responder (530) 891-4357 G 4 yes ALSFort Jones Fire Department (530) 468-2178 G 0 no BLSGraeagle Fire Rescue (530) 836-1340 G 0 no ALSGrenada Fire Department (530) 436-2381 G 0 no BLSHamilton Branch FPD (530) 596-3458 G 0 no ALSHappy Camp Ambulance (530) 493-2322 G 2 yes ALSHappy Valley Fire Department (530) 357-2345 G 0 no BLSHayfork Volunteer Fire Department (530) 628-5336 G 0 no BLSHyampom Fire Department (530) 628-5701 G 1 yes BLSIndian Valley Hospital Ambulance (530) 284-7191 G 2 yes ALSLewiston Volunteer Fire Department (530) 778-3965 G 1 yes BLSMayers Memorial Hospital (530) 336-5511 G 2 yes ALSMcArthur Fire Protection District (530) 336-5026 G 0 no BLSMcCloud Community Service District (530) 964-2422 G 1 yes ALSMercy Medical Center (530) 225-6290 GA 8 yes ALSModoc Medical Center (530) 233-5131 G 4 yes ALSMontague Fire District (530) 459-5343 G 0 no BLSMount Shasta Ambulance (530) 926-2665 G 5 yes ALSMountain EMS, Inc. (530) 257-0249 GA 9 yes ALSMountain Gate Fire Department (530) 275-3003 G 0 no BLSNorthern Siskiyou Ambulance (530) 842-3583 G 3 yes ALSOak Run Volunteer Fire Company (530) 547-4324 G 0 no BLSOld Station Volunteer Fire Department (530) 335-7111 G 0 no BLSOroville Hospital (530) 533-8500 G 6 yes ALSPeninsula Fire District (530) 259-2306 G 1 yes ALSPlumas District Hospital (530) 283-1322 G 3 yes ALSRedding Fire Department (530) 225-4141 G O no BLSRedding Medical Center (Air-Med) (530) 244-5192 GA 2 yes ALS



Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacitySalmon River Volunteer Fire Rescue Co. N/A G 1 yes BLSSeneca District Hospital (530) 258-2151 G 3 yes ALSShasta Fire Department (530) 241-4615 G 0 no ALSShasta Lake City FPD (530) 275-7474 G 0 no ALSShasta Lake Volunteer Fire Department (530) 238-2129 G 0 no BLSShingletown Volunteer Fire Department (530) 474-3914 G 1 yes BLSSierra Life Support (530) 257-5362 G 3 yes ALSSierra Valley District Hosp. Ambulance (530) 993-1225 G 3 yes BLSSierraville Ambulance (530) 994-3344 G 1 yes BLSSt. Elizabeth Hospital (530) 529-8000 G 5 yes ALSSurprise Valley Hospital Ambulance (530) 279-6111 G 1 yes BLSTehama County Fire Department (530) 529-8548 G 0 no BLSTrinity Center Volunteer FD (530) 266-3378 G 0 yes ALSTrinity County Life Support (530) 623-2500 G 4 yes ALSW. Almanor Fire Department (530) 259-5112 G 0 no BLSWeed Fire Department (530) 938-5030 G 0 no ALSWestside Ambulance Association (530) 865-3998 G 2 yes ALSWestwood Fire Department (530) 256-3589 G 2 yes ALS


Orange County EMS Agency

Local EMS AgencyJanice Worth, EMS Administrator405 West Fifth Street, Suite 301ASanta Ana, California 92701(714) 834-3500

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) Med 1 468.000 463.000 N/A Prim Med 2 468.025 463.025 N/A Prim Med 3 468.050 463.050 N/A Prim Med 4 468.075 463.075 N/A Prim Med 5 468.100 463.100 N/A Prim Med 6 468.125 463.125 N/A Prim Med 7 468.150 463.150 N/A Prim Med 8 468.175 463.175 N/A PrimStatewide Medical Coordination


467.950 462.950 N/A PrimDispatch (for each EMS Agency) Trunked Radio System 800 MHz N/A N/A PrimDirect to hospitals Med 1 468.000 463.000 N/A Prim Med 2 468.025 463.025 N/A Prim Med 3 468.050 463.050 N/A Prim Med 4 468.075 463.075 N/A Prim Med 5 468.100 463.100 N/A Prim Med 6 468.125 463.125 N/A Prim Med 7 468.150 463.150 N/A Prim Med 8 468.175 463.175 N/A PrimOther (e.g. tactical, etc.) Trunked Radio System 800 MHz N/A N/A Prim

Emergency Department Facilities TelephoneAnaheim General Hospital (714) 827-67003350 W. Ball roadAnaheim, California 92804

Anaheim Memorial Medical Center (714) 774-14501111 West La Palma Ave.Anaheim, California 92801

Brea Community Hospital (714) 671-5424380 W. Central AvenueBrea, California 92821

Chapman Medical Center (714) 633-00112601 E. Chapman AvenueOrange, California 92869

Coastal Communities Hospital (714) 754-54542701 S. BristolSanta Ana, California 92704



Emergency Department Facilities TelephoneHuntington Beach Medical Center (714) 842-147317772 Beach Blvd.Huntington Beach, California 92647

San Clemente Hospital & Medical Center (949) 496-1122654 Camino De Los MaresSan Clemente, California 92672West Anaheim Medical Center (714) 827-30003033 West OrangeAnaheim, California 92804

Fountain Valley Regional Hospital (714) 966-720017100 Euclid StreetFountain Valley, California 92708

Garden Grove Hospital and Medical Center (714) 537-516012601 Garden Grove Blvd.Garden Grove, California 92843

Hoag Memorial Hospital Presbyterian (949) 645-86001 Hoag DriveNewport Beach, California 92658

Irvine Medical Center (949) 753-200016200 Sand CanyonIrvine, California 92718

Kaiser Permanente Medical Center (714) 978-4000441 LakeviewAnaheim, California 92807

La Palma Intercommunity Hospital (714) 670-74007901 Walker StreetLa Palma, California 90623

Los Alamitos Medical Center (714) 826-64003751 Katella AvenueLos Alamitos, California 90720

Martin Luther Hospital (714) 491-52001830 W. RomneyaAnaheim, California 92801

Mission Hospital Regional Medical Center (949) 364-140027700 Medical Center RoadMission Viejo, California 92691

Orange Coast Memorial Medical Center (714) 962-46778820 Talbert AvenueFountain Valley, California 92708

Pacifica Hospital (714) 842-061118800 Delaware StreetHuntington Beach, California 92548



Emergency Department Facilities TelephonePlacentia Linda Hospital (714) 993-20001301 North Rose DrivePlacentia, California 92870

Saddleback Memorial Medical Center (949) 837-450024451 Health Center RoadLaguna Hills, California 92653

St. Joseph Hospital (714) 633-91111100 W. Stewart DriveOrange, California 92686

St. Jude Medical Center (714) 871-3280101 East Valencia Mesa DriveFullerton, California 92835

South Coast Medical Center (949) 499-200231872 Coast HighwaySouth Laguna, California 92677

UC Irvine Medical Center (714) 456-6011101 The City Drive SouthOrange, California 92868

Western Medical Center-Anaheim (714) 533-62201025 S. Anaheim Blvd.Anaheim, California 92805

Western Medical Center-Santa Ana (714) 835-35551001 North Tustin AvenueSanta Ana, California 92705

Long Beach Memorial Medical Center (562) 933-21332801 Atlantic AvenueLong Beach, California 90801

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAmerican Medical Response (714) 564-3400 G N/R N/AR BLSAmeriCare Ambulance Service (714) 633-4135 G N/R N/R BLSAnaheim Fire Department (714) 254-4000 G 0 no ALSBowers Ambulance Service (562) 591-3371 G 4 yes BLSBrea Fire Department (714) 990-7644 G 21 no ALSCare Ambulance Service (714) 828-7750 G 0 yes BLSCosta Mesa Fire Department (714) 754-5106 G 13 yes ALSDoctor’s Ambulance Service (949) 951-1668 G 8 yes BLSEmergency Ambulance Service (714) 990-1742 G 1 yes BLSEmergency Services, Inc. (562) 692-6775 G 1 N/R BLSFountain Valley Fire Department (714) 593-4436 G 0 no ALSFullerton Fire Department (714) 738-6502 G 0 no ALSGarden Grove Fire Department (714) 741-5600 G 0 no ALSHuntington Ambulance Service (310) 592-1627 G 2 yes BLSHuntington Beach Fire Department (714) 536-5411 G 5 yes ALSLa Habra Fire Department (562) 694-8977 G 2 yes ALSLaguna Beach Fire Department (949) 497-0700 G 0 no ALS



Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityLynch Ambulance Service (714) 670-8307 G 12 yes BLSMedix Ambulance Service, Inc. (949) 470-8921 G 26 yes BLSMercy Air Service Inc. (909) 357-9006 A 4 yes ALSNewport Beach Fire Department (949) 644-3101 G 2 yes ALSOrange City Fire Department (714) 288-2500 G 3 yes ALSOrange County Fire Authority (714) 289-7410 GA 3 yes ALSPriority One Medical Transport (800) 660-3370 G 3 yes BLSSanta Ana Fire Department (949) 647-5700 G 7 yes ALSSchaefer Ambulance Service, Inc (714) 545-8486 G 10 yes BLS


Riverside County EMS Agency

Local EMS AgencyMichael Osur, EMS AdministratorPO Box 7600Riverside, California 92513(909) 358-5029

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) Mednet 1 155.265 N/A N/A N/A Mednet Net 2 155.295 N/A 110.9 N/A Administration (Unit to Unit) 151.340 N/A N/A N/A TAC 2 151.160 N/A N/A N/A TAC 10 151.400 N/A N/A N/AStatewide Medical Coordination


N/A N/A N/A N/ADispatch (for each EMS Agency) Emergency Dispatch-to-Ambulance 156.075 156.075 N/A N/A Net 3 151.385 N/A Prim Net 4 151.175 N/A Alt Support 5 154.145 167.9 N/A Support 6 154.445 167.9 N/A Support 7 154.130 167.9 N/A Support 8 153.770 167.9 N/A Support 9 154.175 167.9 N/ADirect to hospitals Emergency Hospital-to-Ambulance 155.265 155.265 N/A N/AOther (e.g. tactical, etc.) CALCORD 156.075 156.075 N/A N/A Health Repeater 156.240 151.025 N/A N/A Health Talk Around 151.025 151.025 N/A N/A Local Government Repeater 156.000 154.000 N/A N/A Local Government Talk Around 154.000 154.000 N/A N/A HEAR (Local) 155.340 155.340 N/A N/A HEAR (Regional) 155.280 155.280 N/A N/A Fire White 1 154.280 N/A N/A Fire White 2 154.265 N/A N/A Fire White 3 151.295 N/A N/A CDF Net 1 151.355 N/A N/A CDF Net 2 151.265 N/A N/A Western & Eastern Co. Sheriff’s Interface 159.450 110.9 N/A Coachella Valley Sheriff’s Interface 158.760 110.9 N/A

Emergency Department Facilities TelephoneCorona Regional Medical Center (909) 737-4343 Main800 S. Main Street (909) 733-6242 EDCorona, California 91720

Desert Regional Medical Center (760) 323-6511 Main1150 N. Indian Canyon Drive (760) 323-6251 EDPalm Springs, California 92262



Emergency Department Facilities TelephoneEisenhower Medical Center (760) 773-1440 Main3900 Bob Hope Drive (760) 773-1221 EDRancho Mirage, California 92270

Hemet Valley Hospital (909) 652-2811 Main1116 E. Latham (909) 766-6450 EDHemet, California 92543

Inland Valley Regional Medical Center (909) 677-8671 Main36485 Inland Valley Drive (909) 677-9778 EDWildomar, California 92595

Riverside Community Hospital (909) 788-3300 Main4445 Magnolia Ave. (909) 788-3200 EDRiverside, California 92501

JFK Memorial Hospital (760) 347-6191 Main47-111 Monroe Street (760) 775-8111 EDIndio, California 92201

Menifee Valley Medical Center (909) 679-8888 Main28400 McCall Blvd. (909) 672-7018 EDSun City, California 92586

Riverside County Regional Medical Center (909) 486-4000 Main26520 Cactus Avenue (909) 486-5650 EDMoreno Valley, California 912555

Moreno Valley Medical Center (909) 243-0811 Main27300 Iris Avenue (909) 243-2018 EDMoreno Valley, California 92360

Palo Verde Hospital (760) 922-4115 Main250 North 1st Street (760) 922-4115 x5235 EDBlythe, California 92225

Kaiser Hospital Riverside (909) 353-2000 Main10800 Magnolia Ave. (909) 353-3661 EDRiverside, California 92505

Parkview Community Hospital (909) 688-2211 Main3805 Jackson Street (909) 688-8312 EDRiverside, California 92503

Rancho Springs Medical Center (909) 696-6000 Main25500 Medical Center Dr. (909) 696-6061 EDMurrieta, CA 92562

San Gorgonio Memorial Hospital (909) 845-1121 Main600 N. Highland Springs Ave. (909) 845-4410 EDBanning, California 92220



Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAMR -Riverside (909) 782-4000 G 52 yes ALSAMR-Desert Cities (760) 322-4134 G 14 yes ALSBlythe Ambulance Service (619) 922-8460 G 4 yes ALSCathedral City Fire Department (760) 770-8200 G 3 yes ALSCHP Air Operations (760) 399-0085 A 1 yes ALSBlythe Fire Department (760) 922-6111 G 0 no first responderCasazon Indian Res. Fire Department (760) 342-1251 G 0 no BLS

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityCorona Fire Department (909) 736-2220 G 0 no ALSHemet Fire Department (909) 765-2450 G 0 no BLS - DEFIIBIdyllwild FPD (909) 659-2153 G 2 yes ALSMercy Air Transport (909) 357-9006 A 4 yes ALSMurrieta Fire Department (909) 677-5511 G 0 no BLS - DEFIBNorco Fire Department (909) 737-8097 G 0 no ALSPalm Springs Fire Department (760) 323-8181 G 0 no BLS- DEFIBRiverside City Fire Department (909) 782-5321 G 0 no ALSRiverside Co. Fire Department/CDF (909) 955-4700 G 5 yes/no ALS/BLS-DEIBMorongo Fire Department (909) 949-7193 G 0 no BLS


Sacramento County EMS AgencyLocal EMS AgencyBruce Wagner, EMS Administrator9616 Micron Ave., Suite 635Sacramento, California 95827(916) [email protected]


800 MHz Analog Trunked Radio SystemStatewide Medical Coordination

868.9875 823.9875 156.7 PCalling Channel

866.0125 821.0125 156.7 PDispatch (for each EMS Agency)

800 MHz Analog Trunked Radio SystemDirect to hospitals

800 MHz Analog Trunked Radio SystemOther (e.g. tactical, etc.)

868.9875 823.9875 156.7 P

Emergency Department Facilities TelephoneMercy San Juan Hospital (916) 537-50006501 Coyle AvenueCarmichael, California 95608

Mercy American River Hospital (916) 484-22224747 Engle RoadCarmichael, California 95608

Mercy General Hospital (916) 453-45454001 J. StreetSacramento, California 95819

Mercy Folsom Hospital (916) 983-74001650 Creekside DriveFolsom, California 95630

UC Davis Medical Center (916) 734-20112315 Stockton Blvd.Sacramento, California 95817

Methodist Hospital (916) 423-30007500 Timberlake WaySacramento, California 95823

Kaiser South Sacramento (916) 688-20006600 Bruceville RoadSacramento, California 95823

Kaiser Hospital Sacramento (916) 973-50002025 Morse AvenueSacramento, California 95825

Sutter General Hospital (916) 454-22222801 L StreetSacramento, California 95816


Sacramento County EMS Agency

Emergency Department Facilities TelephoneSutter Memorial Hospital (916) 454-333352nd and F StreetSacramento, California 95819

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAmerican Medical Response (916) 563-0600 G 15 yes ALSAmerican River Fire District (916) 566-4000 G 4 yes ALSCHP/ Valley Division Air Operations (530) 823-4055 A 1 yes ALSCourtland FPD (916) 775-1210 G 0 no BLSDelta FPD (707) 374-2233 G 0 no BLSElk Grove Fire Department (916) 685-9502 G 4 yes ALSFolsom Fire Department (916) 355-7250 G 3 yes ALSGalt FPD (209) 745-1001 G 3 yes ALSHerald FPD (209) 748-2322 G 0 no BLSIsleton FPD (916) 777-7776 G 0 no BLSMedic Ambulance Service (916) 564-9040 G 8 yes ALSSacramento Int. Airport Fire Department (916) 874-0648 G 0 no BLSSacramento City Fire Department (916) 264-5266 G 11 yes ALSSacramento Co. Fire Protection District (916) 636-1800 G 12 yes ALSUCDMC Life Flight (916) 734-2406 A 2 yes ALSWalnut Grove FPD (916) 776-1113 G 0 no BLSWilton Fire District (916) 687-6920 G 0 no ALSReach (800) 622-4050 A 1 yes ALS


San Benito County EMS Agency

Local EMS AgencyCurtis Hill, EMS AdministratorPO Box 700Hollister, California 95024(831) 636-4086

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) 155.280 155.280 2000 PrimStatewide Medical Coordination

463.000 463.00 2000 PrimCalling Channel



463.000 463.000 2000 PrimOther (e.g. tactical, etc.)

N/A N/A N/A N/A

Emergency Department Facilities TelephoneHazel Hawkins Hospital (831) 637-5711 Main911 Sunset Drive (831) 636-2640 EDHollister, California 95023

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityN/R N/R N/R N/R N/R N/R


San Bernardino, Inyo, Mono EMS AgencyLocal EMS AgencyDiane Fisher, EMS Administrator164 West Hospitality Lane, #4ASan Bernardino, California 92415(909) 888-7511

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) San Bernardino 800 MHz N/A N/A N/A Inyo 155.868 154.310 131.8 Primary Mono 154.025 154.025 N/A N/AStatewide Medical Coordination


N/A N/A N/A N/ADispatch (for each EMS Agency) Mono 155.760 153.860 136.5 N/ADirect to hospitals Mono 155.895 154.025 136.5 N/AOther (e.g. tactical, etc.) HEAR NGT 155.340 155.340 N/A N/A

Emergency Department Facilities TelephoneArrowhead Regional Medical Center (909) 580-1456400 N. Pepper Ave. Emergency Dept.Colton, California 92324

San Antonio Community Hospital (909) 985-2811999 San Bernardino RoadUpland, California 91786

Community Hospital of San Bernardino (909) 887-6333 x33231805 Medical Center DriveSan Bernardino, California 92411

St. Bernardine Medical Center (909) 883-8711 x33642101 N. Waterman Avenue P.O Box 2338San Bernardino, California 92406

Redlands Community Hospital (909) 335-5600350 Terracina Blvd.Redlands, California 92373

JLP VA MED CTR AMB Care/11C (909) 825-7084 x310311201 Benton St.Loma Linda, California 92357

Loma Linda Community Hospital (909) 799-606725333 Barton Road P.O. Box 2000Loma Linda, California 92354

Loma Linda University Medical Center (909) 824-0800 x4533411234 Anderson Street P.O. Box 2000 Rm. A125Loma Linda, California 92354


San Bernardino, Inyo, Mono EMS Agency

Emergency Department Facilities TelephoneKaiser Permanente Hospital (909) 427-49859961 Sierra AvenueFontana, California 92335

Colorado River Med. Ctr. (760) 326-45311401 Bailey AvenueNeedles, California 92363

Mammoth Hospital (760) 934-3311 x 26185 Sierra Park Road P.O. Box 660Mammoth Lakes, California 93546

Barstow Community Hospital (760) 256-1761x 530555 S. Seventh StreetBarstow, California 92311

Bear Valley Community Hospital (909) 866-650141870 Garstin Road P.O. Box 1649Big Bear Lake, California 92315

Northern Inyo Hospital (760) 873-5811150 Pioneer LaneBishop, California 92314

Mono County Medical Group (760) 932-7011Twin Lakes Road P.O. Box 677Bridgeport, California 93517

St. Mary Regional Medical Center (760) 242-231118300 Hwy 18 P.O. Box 7025Apple Valley, California 92307

Columbia Chino Valley Medical Center (909) 464-8604 or -88885451 Walnut Avenue EDChino, California 91710

Desert Valley Hospital (760) 381-804116850 Bear Valley roadVictorville, California 92392

Hi Desert Medical Center ED (760) 366-61266601 White Feather RoadJoshua Tree, California 92252



Emergency Department Facilities TelephoneMountains Community Hospital (909) 336-3651PO Box 70Lake Arrowhead, California 92352

US Family Care Medical Center (909) 625-54115000 San Bernardino Emergency DepartmentMontclair, California 91763

Southern Inyo Hospital (760) 876-5501501 E. LocustLone Pine, California 93546

Victor Valley Community Hospital (760) 245-869115248 Eleventh StreetVictorville, California 92392

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAMR - Lifecare Medical Transport (909) 793-7676 G 25 yes ALSAMR - San Bernardino (909) 948-1714 G 40 yes ALSAdelanto (City) Fire Department (619) 246-3344 G 0 no BLSAntelope Valley Fire Department (530) 495-2900 G 0 no BLSApple Valley (City) Fire Department (760) 247-7618 G 0 no BLSArrowbear Lake CWD (909) 867-3479 G 0 no BLSBarstow (City) Fire Department (760) 256-2254 G 0 no ALSBear Valley Paramedic (909) 866-7478 G 5 yes ALSBig Bear City Fire Department (909) 585-2565 G 0 no BLSBig Bear Lake Fire Department (909) 866-4668 G 0 no BLSBig Pine Fire Department (760) 938-2600 N/R N/R N/R BLSBridgeport Fire Department (760) 932-7759 G 0 no BLSBureau of Land Management (760) 872-4881 G 0 no BLSCDF-#13 Yucaipa (909) 797-1000 G 0 no ALSCDF-#6 Highland (909) 862-3031 G 0 no ALSCHP-Air (760) 254-2956 A 1 yes ALSCare Ambulance Service (760) 376-2271 G 5 yes ALSCentinela Mammoth Hospital (760) 934-3311 G 1 yes BLSChalfant Valley Fire Department (760) 873-5402 G 0 no BLSChina Lake Naval Weapons Center (760) 939-2146 G 3 yes ALSChino Valley (City) FD (909) 597-7775 G 0 no BLSCole-Schaefer Ambulance Service (714) 622-1273 G N/R N/R ALSColton (City) Fire Department (909) 370-5100 G 0 no BLSCrest Forest Fire District (909) 338-3311 G 3 yes ALSDaggett Community Service District (760) 254-2415 G 0 no BLSDeath Valley National Monument (760) 786-2342 G 3 yes ALSDelano Ambulance Service (805) 725-3374 G 4 yes ALSDesert Ambulance Service (760) 256-6854 G 6 yes ALSDesert Valley Medical Transport (760) 245-7051 G 13 yes ALSEdwards AFB (805) 277-2330 G 6 yes ALSGolden Empire Ambulance (805) 325-9011 GA 12 yes ALSGreen Valley Lake Fire Department (909) 337-8586 G 0 no BLS



Hesperia (City) Fire Department (619) 947-1600 G 0 yes ALSIndependence Fire Department (619) 878-2113 G 0 no BLSJoshua Tree Ambulance Association (619) 366-8474 G 8 yes ALSLee Vining Fire Department (760) 647-6626 G 0 no BLSLiberty Ambulance (760) 375-6565 G 7 yes ALS

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityLoma Linda (City) Fire Department (909) 796-0191 G 0 no BLSLong Valley Fire Department (760) 935-4545 G 0 no BLSLucerne Valley Fire Department (760) 249-3206 G 0 no BLSMammoth Lakes Fire Department (760) 873-5485 G 0 no ALSMercy Air Service (909) 357-9006 A 5 yes ALSMontclair (City) Fire Department (909) 626-1217 G 0 no BLSMountain Warfare Training Center (760) 932-7761 G 3 yes BLSNorth American Chemical Company (760) 372-2341 G 1 yes BLSOlancha/Cartago Fire Department (760) 764-2370 N/R N/R N/R BLSOntario (City) Fire Department (909) 986-4579 G 0 no ALSOntario Airport Fire Department (909) 937-2700 G 0 no BLSParadise Fire Department (760) 9873-5485 G 0 no BLSRancho Cucamonga Fire Department (909) 987-2535 G 0 no ALSRedlands (City) Fire Department (909) 798-7600 G 0 no ALSRialto (City) Fire Department (909) 820-2501 G 3 yes ALSRunning Springs Water District (909) 867-2630 G 5 yes ALSS. Amargosa Valley Emergency Service (760) 852-4506 N/R N/R N/R BLSSan Bernardino Co. Fire Department (909) 387-5974 G 0 no BLSSan Bernardino Co. Fire-Fontana (909) 829-4441 G 0 no BLSSan Bernardino Co. Fire Agncy-Yucca Valley (760) 365-3335 G 4 yes ALSSan Bernardino Co. Fire Agency-Forest Falls (909) 794-4413 G 1 yes BLSSan Bernardino Co Fire Agncy-Lk Arrowhead (909) 337-8586 G 3 yes ALSSan Bernardino Co Fire Agncy-#126 Searles (760) 249-3206 G 2 yes BLSSan Bernardino Co. FD-Wrightwood FD (760) 249-3206 G 4 yes ALSSan Bernardino City Fire Department (909) 384-5289 G 0 no ALSSheriff's Aviation (909) 356-3800 A 11 yes ALSSymons Emergency Services (760) 873-8904 G 3 yes ALSTwentynine Palms Fire Department (760) 367-7524 G 0 no BLSUpland (City) Fire Department (909) 931-4180 G 0 no ALSVictorville (City) Fire Department (760) 245-5312 G 0 no BLSWhite Mountain Fire Department (760) 933-2252 G N/R N/R BLS


San Diego County EMS Agency

Local EMS AgencyGwen Jones, EMS Administrator6255 Mission Gorge RoadSan Diego, California 92120(619) 285-6429

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) Trunked System 800 MHz N/A N/A N/AStatewide Medical Coordination


N/A N/A N/A N/ADispatch (for each EMS Agency) N/A N/A N/A N/ADirect to hospitals Trunked System 800 MHz N/A N/A N/AOther (e.g. tactical, etc.) Trunked System 800 MHz N/A N/A N/A

Emergency Department Facilities TelephoneAlvarado Community Hospital (619) 287-32706655 Alvarado RoadSan Diego, California 92120

Children’s Hospital and Health Center (619) 435-6251250 Prospect PlaceCoronado, California 92118

Fallbrook Hospital (760) 728-1191624 East Elder StreetFallbrook, California 92028

Grossmont Hospital (619) 465-07115555 Grossmont Center DriveLa Mesa, California 91941

Kaiser Foundation Hospital (619) 528-5000 Main4647 Zion Avenue (619) 528-5700 EDSan Diego, California 92120

Mercy Hospital and Medical Center (619) 294-8111 Main4077 Fifth Avenue (619) 260-7000 EDSan Diego, California 92103

Mission Bay Hospital (619) 274-77213030 Bunker Hill StreetSan Diego, California 92109

US Naval Hospital-San Diego (619) 532-6400 MainSan Diego, California 92134 (619) 532-8275 ED

US Naval Hospital-Camp Pendleton (949) 725-1288US Marine Corps.Camp Pendleton, California 92055



Emergency Department Facilities TelephonePalomar Medical Center (760) 739-3000555 East Valley ParkwayEscondido, California 92025

Paradise Valley Hospital (619) 470-43212400 East Fourth StreetNational City, California 91950

Pomerado Hospital (619) 485-651115615 Pomerado RoadPoway, California 92064

Scripps Memorial Hospital-Chula Vista (619) 691-7000435 H StreetChula Vista, California 91910

Scripps Hospital-East County (619) 440-11221688 East Main StreetEl Cajon, California 92021

Scripps Memorial Hospital-Encinitas (760) 753-6501 Main354 Santa Fe Drive (760) 633-7685 EDEncinitas, California 92024

Scripps Memorial Hospital-La Jolla (619) 457-4123 Main9888 Genesee Drive (619) 626-6150 EDLa Jolla, California 92038

Sharp Chula Vista Hospital (619) 482-3400 Main751 Medical Center Court (619) 482-5825 EDChula Vista, California 91910-6699

Tri-City Medical Center (760) 724-8411 Main4002 Vista Way (760) 940-3518 EDOceanside, California 92054

UCSD Medical Center (619) 543-6222 Main200 West Arbor Drive (619) 543-6400 EDSan Diego, California 92103

UCSD Thornton Hospital (619) 657-7000 Main9300 Campus Point Drive (619) 657-7600 EDLa Jolla, California 92037

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAmerican Medical Response (619) 492-8100 G 86 yes ALSAlpine FPD (619) 445-2635 G 0 no BLSBalboa Ambulance (619) 295-1941x10 G 16 yes BLSBonita-Sunnyside FPD (619) 479-2346 G 0 no BLSBorrego Springs FPD (619) 767-5436 G 3 yes BLS



Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityBoulevard CSA (619) 766-4633 G 0 no BLSBowers Ambulance Service (310) 591-3371 G 4 yes BLSCDF (619) 588-0364 G 0 no BLSCampo Reservation Fire (619) 478-5310 G 0 no BLSCare Medical Transport (619) 514-4111 G 15 yes BLSCarlsbad Fire Department (619) 931-2141 G 2 yes ALSChula Vista Fire Department (619) 691-5055 G 0 no BLSCoronado Fire Department (619) 522-7374 G 2 yes BLSDeer Springs FPD (619) 749-8001 G 0 no BLSDel Mar Fire Dept. (619) 755-1522 G 1 yes BLSEast County FPD (619) 579-6034 G 2 yes BLSEl Cajon Fire Department (619) 441-1600 G 3 yes ALSEncinitas FPD (619) 633-2800 G 1 yes BLSEscondido FPD (619) 738-5400 G 3 yes ALSImperial Beach Fire Department (619) 423-8223 G 0 no BLSJulian-Cuyamaca FPD (619) 765-1510 G 0 no BLSLa Mesa Fire Department (619) 667-1355 G 0 no BLSLake Cuyamaca FPD (619) 765-1973 G 0 no BLSLakeside Fire Department (619) 390-2350 G 2 yes ALSLemon Grove FPD (619) 469-4115 G 0 no BLSMercy Air Ambulance (909) 347-9006 A 6 yes ALSMt. Laguna Volunteer Fire Department (619) 473-8143 G 0 no BLSNational City Fire Department (619) 336-4271 G 0 no BLSNorth County FPD (619) 723-2005 G 4 yes ALSOceanside Fire Department (619) 966-4883 G 4 yes ALSOcotillo Wells FPD (619) 358-7735 G 0 no BLSPala Fire Battalion (619) 742-1632 G 0 no BLSPalomar Mountain CSA 100 (619) 742-1693 G 0 no BLSPine Valley FPD (619) 696-2612 G 0 no BLSPoway Fire Department (619) 679-4340 G 1 yes ALSRanchita Fire Battalion (619) 565-5257 G 0 no BLSRancho Santa Fe FPD (619) 756-5971 G 1 yes BLSReservation Fire Department (619) 742-1289 G 0 no BLSRamona Municipal Water District (619) 789-1330 G 2 yes ALSRural FPD (619) 669-1188 G 0 no BLSSTAT Medical Transportation (619) 443-3740 G 14 yes BLSSan Diego City Fire Department (619) 533-4300 G 24 yes ALSSan Marcos FPD (619) 744-1050 G 0 no BLSSan Miguel Cons. FPD (619) 670-0500 G 0 no BLSSan Onofre Fire Department (949) 368-6655 G 2 yes BLSSan Pasqual Fire Department (619) 745-9565 G 0 no BLSSantee Fire Department (619) 258-4100 G 2 yes ALSSchaefer Ambulance Service, Inc (619) 583-0454 G 7 yes BLSSolana Beach Fire Department (619) 755-1179 G 0 no BLSSycuan FPD (619) 445-2614 G 4 yes ALSValley Center FPD (619) 751-7600 G 0 no BLSVista FPD (619) 726-2144 G 3 yes ALSWarner Springs Ranch Fire Department (619) 782-3555 G 0 no BLSWest Shore Ambulance Company (619) 395-6800 G 2 yes ALS


San Francisco County EMS Agency

Local EMS AgencyAbbie Yant, EMS Administrator1540 Market Street, Suite 220San Francisco, California 94102(415) 554-9963

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) Ambulance 155.39 155.39 156.7 Alt Med 1 468.000 463.000 103.5 N/A Med 2 468.025 463.025 103.5 N/A Med 3 468.050 463.050 103.5 N/A Med 4 468.075 463.075 103.5 N/A Med 5 468.100 463.100 103.5 N/A Med 6 468.125 463.125 103.5 Alt Med 7 468.150 463.150 103.5 N/A Med 8 468.175 463.175 103.5 PrimStatewide Medical Coordination HEAR 155.34 155.34 CSQ/ Prim

DTMFCalling Channel

N/A N/A N/A N/ADispatch (for each EMS Agency) Coordinate 1 462.95 467.95 167.9 Alt Coordinate 2 462.98 467.98 167.9 Prim Fire Control 1 488.36 491.36 506 Prim Fire Control 2 488.56 491.56 506 Prim Fire Control 3 488.76 491.76 506 Prim Fire Control 6** 489.11 492.11 506 Prim Fire Control 4** 489.16 492.16 506 Prim Fire Control 5** 489.19 492.19 506 Prim *As of 12/99 SF converting to 800 MHz ** alternates, not primariesDirect to hospitals N/A N/A N/A N/AOther (e.g. tactical, etc.) OES State Fire Net 33.980 154.160 SECODE Prim Fire White 154.280 154.280 146.2 Prim

Emergency Department Facilities TelephoneChinese Hospital (415) 677-2300845 Jackson StreetSan Francisco, California 94133

Kaiser Permanente Medical Center (415) 202-33042425 Geary Blvd.San Francisco, California 94115

UCSF/ Stanford Mt. Zion Medical Center (415) 885-75201600 Divisadero StreetSan Francisco, California 94115

CPMC-Pacific Campus (415) 923-3333PO Box 7999San Francisco, California 94120


San Francisco County EMS Agency

Emergency Department Facilities TelephoneCalifornia Pacific Davies Medical Center (415) 565-6060Castro & Duboce StreetsSan Francisco, California 94114

St. Francis Memorial Hospital (415) 353-6300PO Box 7726San Francisco, California 94121

St. Luke’s Hospital (415) 641-66253555 Army StreetSan Francisco, California 94110

St. Mary’s Hospital & Medical Center (415) 750-5700450 Stanyan StreetSan Francisco, California 94117

San Francisco General Hospital (415) 206-81111001 Potrero AvenueSan Francisco, California 94110

UCSF/Stanford Medical Center (415) 476-1037505 Parnassus Street, L-138San Francisco, California 94143

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAMR- S. F. Ambulance Service (415) 929-4789 G 19 yes ALSKing American Ambulance Company (415) 931-1400 G 13 yes ALSNational Park Service (415) 561-5184 G 1 no ALSSan Francisco Fire Department (415) 561-5900 G 20 yes ALSSt. Joseph's Ambulance Service (415) 460-6022 G 2 yes BLS


San Joaquin County EMS Agency

Local EMS AgencyDarrell J. Cramphorn, EMS AdministratorPO Box 1020Stockton, California 95201(209) 468-6818

Channel Use TX-Freq RX-Freq CTCSS Primary/AlternateLocal Medical Coordination (real time) MedDAM 155.400 155.400 N/A N/A MedDHM 155.400 155.400 N/A N/A MedLMH 155.400 155.400 N/A N/A MedSJGH 155.400 155.400 N/A N/A MedStDm 155.400 155.400 N/A N/A MedsJMC 155.400 155.400 N/A N/A MedTrcy 155.400 155.400 N/A N/A MedNetR 155.340 155.340 N/A N/A Med 1 468.000 463.000 N/A N/A Med 2 468.025 463.025 N/A N/A Med 3 468.050 463.050 N/A N/A Med 4 468.075 463.075 N/A N/A Med 5 468.100 463.100 N/A N/A Med 6 468.125 463.125 N/A N/A Med 7 468.150 463.150 N/A N/A Med 8 468.175 463.175 N/A N/A Med 9 467.950 462.950 N/A N/A Med 10 467.975 462.975 N/A N/AStatewide Medical Coordination


N/A N/A N/A N/ADispatch (for each EMS Agency) Local Fire-FireRed 156.120 154.130 110.9 N/A Local Fire-BlueTac 154.070 154.070 N/A N/A Local Fire-South County 153.815 155.055 N/A N/A Local Fire-GrnTac 153.950 153.950 N/A N/A Local Fire-GoldTac 154.310 154.310 N/A N/A Local Fire-LodiPri 154.010 159.060 N/A N/A Local Fire-PurpTac 158.940 158.940 N/A N/A Local Fire-Brown 154.235 154.235 N/A N/A Local Fire-Orange 154.130 154.120 N/A N/A Local Fire-Yellow 152.915 152.915 N/A N/A Local Fire-LodiCity 159.060 154.010 N/A N/A Local Fire-Airport 155.025 155.025 N/A N/A AMRStk1 155.160 155.160 N/A N/A AMRStk2 155.220 155.220 N/A N/A AMRLodi 155.205 155.205 N/A N/A AMRTalk 155.160 155.160 N/A N/ADirect to hospitals

N/A N/A N/A N/AOther (e.g. tactical, etc.) CALCORD 156.075 156.075 N/A N/A


San Joaquin County EMS Agency

Emergency Department Facilities TelephoneDameron Hospital (209) 944-5550525 W. Acacia StreetStockton, California 95203

Lodi Memorial Hospital (209) 334-3411975 S. Fairmont Ave.Lodi, California 95240

St. Joseph’s Medical Center (209) 467-64001800 N. California StreetStockton, California 95204

San Joaquin General Hospital (209) 468-6000500 W. Hospital RoadFrench Camp, California 95231

Doctor’s Hospital Manteca (209) 823-31111205 E. North StreetManteca, California 95336

Sutter-Tracy Community Hospital (209) 835-15001420 Tracy Blvd.Tracy, California 95376

St. Dominic’s Hospital (209) 825-35551777 W. Yosemite AvenueManteca, California 95336

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityA1 Ambulance (209) 464-9380 G 2 yes ALSAMR Inc. (209) 948-5136 G 26 yes ALSAir Med Team (209) 576-3939 A 1 yes ALSEscalon Ambulance (209) 838-1351 G 2 yes ALSManteca District Ambulance (209) 823-1032 G 5 yes ALSMediflight of Northern California (209) 572-7050 A 3 yes ALSMediplane Inc. (REACH) (707) 575-6886 A 2 yes ALSRipon Fire Department (209) 599-4209 G 1 yes ALSStockton Fire Department (209) 937-8801 G 0 no ALSUCDMC/ Life Flight (916) 734-2406 A 2 yes ALS


San Luis Obispo County EMS Agency

Local EMS AgencyTom Lynch, EMS Administrator712 Fiero Lane, #29San Luis Obispo, California 93401(805) 546-8728

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) Med 1 468.000 463.000 N/A N/A Med 2 468.025 463.025 N/A N/A Med 3 468.050 463.050 N/A N/A Med 4 468.075 463.075 N/A N/AStatewide Medical Coordination

0 0 N/A N/ACalling Channel

N/A N/A N/A N/ADispatch (for each EMS Agency) Med 1 468.000 463.000 N/A N/A Med 2 468.025 463.025 N/A N/A Med 3 468.050 463.050 N/A N/A Med 4 468.075 463.075 N/A N/ADirect to hospitals Med 3 468.050 463.050 N/A N/A Med 4 468.075 463.075 N/A N/AOther (e.g. tactical, etc.)

N/A N/A N/A N/A

Emergency Department Facilities TelephoneTwin Cities Community Hospital (805) 434-2813 Main110 Las Tablas Road (805) 434-4550 EDTempleton, California 93465

Sierra Vista Regional Medical Center (805) 546-7600 Main1010 Murray Street (805) 546-7650 EDSan Luis Obispo, California 93401

San Luis Obispo General Hospital (805) 781-4800 Main2180 Johnson Avenue (805) 781-4966 EDSan Luis Obispo, California 93401

Arroyo Grande Community Hospital (805) 489-4261 Main345 S. Halcyon Road (805) 473-7626 EDArroyo Grande, California 93420

French Hospital Medical Center (805) 543-5353 Main1911 Johnson Avenue (805) 542-6377 EDSan Luis Obispo, California 93401

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityCHP Air Operations (805) 239-3553 A 1 yes ALSCambria Community Healthcare (805) 927-8304 G 3 yes ALSFive Cities Ambulance (805) 473-2884 G 5 yes ALSSan Luis Ambulance Service (805) 543-2626 G 11 yes ALS


San Mateo County EMS Agency

Local EMS AgencyBarbara Pletz, EMS Administrator225 37th AvenueSan Mateo, California 94403(650) 573-2564



0 0 0 0Calling Channel

N/A N/A N/A N/ADispatch (for each EMS Agency) 482.3125 N/A N/A N/ADirect to hospitals 482.9625 N/A N/A N/AOther (e.g. tactical, etc.)

N/A N/A N/A N/A

Emergency Department Facilities TelephoneKaiser Hospital Redwood City (650) 299-20001150 Veterans Blvd.Redwood City, California 94063

Kaiser Hospital So. San Francisco (650) 742-22001200 El Camino RealSo. San Francisco, California 94080

Mills Hospital (650) 696-4400100 South San Mateo DriveSan Mateo, California 94402

Peninsula Hospital (650) 696-40431783 El Camino RealBurlingame, California 94010

Sequoia Hospital (650) 367-5561170 AlamedaRedwood City, California 94062

Seton Coastside (650) 728-5521600 Marine Blvd.Moss Beach, California 94038

Seton Medical Center (650) 992-40001900 Sullivan AvenueDaly City, California 94015

Stanford Hospital (650) 723-4000300 Pasteur DrivePalo Alto, California 94305


San Mateo County EMS Agency

Emergency Department Facility TelephoneSan Mateo County General Hospital (650) 573-2222222 W. 39th AvenueSan Mateo, California 94403

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAmerican Medical Response (650) 259-6100 G 87 yes ALSBayshore Ambulance (650) 525-3855 G 10 yes ALSBrisbane Fire Department (415) 467-1216 G 0 no ALSBurlingame Fire Department (650) 343-4545 G 0 no ALSCALSTAR (510) 887-3063 A 4 yes ALSCDF (650) 573-3844 G 0 no ALSColma FPD (650) 755-5666 G 0 no ALSDaly City Fire Department (650) 991-8138 G 0 no ALSFoster City Fire Department (650) 286-3350 G 0 no ALSHalf Moon Bay FPD (650) 726-5213 G 0 no ALSHillsborough Fire Department (650) 375-7422 G 0 no ALSLife Flight (650) 723-5578 A 1 yes ALSMenlo Park FPD (650) 688-8400 G 0 no ALSMillbrae Fire Department (650) 259-2400 G 0 no ALSPacifica Fire Department (650) 738-7360 G 0 no ALSPoint Montara Fire Department (650) 728-3022 G 0 no ALSRedwood City Fire Department (650) 780-7400 G 0 no ALSSan Francisco International Airport (650) 794-4600 G 0 no ALSSan Bruno Fire Department (650) 877-8996 G 0 no ALSSan Mateo Fire Department (650) 522-7900 G 0 no ALSSouth County Fire Department (650) 593-8016 G 0 no ALSSouth San Francisco Fire Department (650) 829-3950 G 2 yes ALSWoodside FPD (650) 851-1594 G 0 no ALS


Santa Barbara EMS AgencyLocal EMS AgencyNancy LaPolla, EMS Administrator300 North San Antonio RoadSanta Barbara, California 93110(805) 681-5274




N/A N/A N/A N/ADispatch (for each EMS Agency) Med 10 467.975 462.975 167.9 N/APatch to hospitals Med1 N/A N/A 173.8 N/A Med 2 N/A N/A 173.8 N/A Med 3 N/A N/A 186.2 N/A Med 4 N/A N/A 146.2 N/A Med 5 468.100 463.100 146.2 N/A Med 6 468.125 463.125 N/A N/A Med 7 468.150 463.150 N/A N/A Med 8 468.175 463.175 N/A N/AOther (e.g. tactical, etc.) N/A N/A N/A N/AMed Net intercom – all hospitals & EMS Agencies are linked on an intercom system (Telco & Microwavenetworked). Hospitals can selectively call each other or perform an all call.

Emergency Department Facilities TelephoneCottage Hospital (805) 569-7210PO Box 689Santa Barbara, California 93102

Goleta Valley Cottage Hospital (805) 967-3411351 South Patterson AvenueSanta Barbara, California 93111

Lompoc Hospital (805) 737-3333508 East hickory AvenueLompoc, California 93436

Marian Medical Center (805) 739-30001400 E. Church StreetSanta Maria, California 93454

St. Francis Medical Center (805) 568-5712601 East Micheltorena StreetSanta Barbara, California 93103

Santa Ynez Valley Cottage Hospital (805) 688-6431700 Alamo Pintado RoadSovlang, California


Santa Barbara EMS Agency

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAmerican Medical Response (805) 688-5500 G 13 yes ALSCA Lifeguard/Department Parks-Recreation (805) 968-3834 G 0 no BLSCarpinteria Summerland Fire (805) 684-4591 G 0 no BLSCounty of Santa Barbara Parks Department (805) 568-2461 G 0 no BLSGuadalupe Fire Department (805) 343-1444 G 0 no BLSGuadalupe Police Department (805) 343-2112 G 0 no BLSLompoc City Fire Department (805) 736-4513 G 0 no BLSLompoc Police Department (805) 736-2341 G 0 no BLSMontecito FPD (805) 969-7762 G 0 no ALSSanta Barbara City Lifeguard (805) 897-2574 G 0 no BLSSanta Barbara County Fire Department (805) 681-5500 G 2 yes ALSSanta Barbara City Fire (805) 965-5254 G 0 no BLSSanta Barbara Police Department (805) 897-2300 G 0 no BLSSanta Barbara Sheriff Department (805) 681-4100 G 0 no BLSSanta Maria Fire Department (805) 925-2631 G 0 no BLSSanta Maria Police Department (805) 925-0951 G 0 no BLSSolvang Mid Fire Station (805) 688-6046 G 0 no BLSUCSB Police Department (805) 893-3446 G 2 yes ALS


Santa Clara County EMS Agency

Local EMS AgencyPam West, EMS Administrator645 South Bascom, Room 139San Jose, California 95128(408) 885-4250

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) Cellular N/A N/A N/A N/A

Statewide Medical CoordinationN/A N/A N/A N/A

Calling ChannelN/A N/A N/A N/A

Dispatch (for each EMS Agency)N/A N/A N/A N/A

Direct to hospitalsN/A N/A N/A N/A

Other (e.g. tactical, etc.) BLS Operations 458.100 453.100 N/A N/A

Note: 91 856.4375, 92 857.4375, AVL 858.4375

Emergency Department Facilities TelephoneColumbia Good Samaritan Hospital (408) 559-22172425 Samaritan DriveSan Jose, California 95124

UCSF Stanford Health Care (650) 723-7337Suite H1249300 Pasteur Drive, NOBStanford, California 94305

Kaiser Santa Clara Hospital (408) 236-4124900 Kiely BoulevardSanta Clara, California 95051

Palo Alto Veterans Hospital (650) 493-50003801 Miranda AvenuePalo Alto, California 94304

Saint Louise Hospital (408) 778-668118500 St. Louise DriveMorgan Hill, California 95037

Community & Rehab Center of Los Gatos-Saratoga (408) 866-4040815 Pollard RoadLos Gatos, California 95030

Santa Clara Valley Medical Center (408) 885-6987751 South Bascom AvenueSan Jose, California 95128

Columbia South Valley Hospital (408) 848-86819400 No Name UnoGilroy, California 94020



Emergency Department Facilities TelephoneAlexian Brothers Hospital (408) 259-5000225 N. Jackson AvenueSan Jose, California 95116

O’Connor Hospital (408)947-26662105 Forest AvenueSan Jose, California 95128

El Camino Hospital (650) 940-70552500 Grant RoadMountain View, California 94042

Santa Teresa Community Hospital (408) 972-7782250 Hospital ParkwaySan Jose, California 95119

Columbia San Jose Medical Center (408) 993-7152675 East Santa Clara StreetSan Jose, California 95112

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT Capacity(City) Campbell Police Department (408) 866-2121 G 0 no BLS(City) Gilroy Fire Department (408) 848-0385 G 0 no BLS(City) Gilroy Police Dept. (408) 848-0329 G 0 no BLS(City) Los Altos Fire Department (650) 948-2404 G 0 no BLS(City) Los Altos Police Department (650) 948-8223 G 0 no BLS(City) Milpitas Fire Department (408) 942-2394 G 0 no BLS(City) Milpitas Police Department (408) 942-3911 G 0 no BLS(City) Morgan Hill Fire Department (408) 776-7351 G 0 no BLS(City) Morgan Hill Police Department (408) 776-7304 G 0 no BLS(City) Mountain View Fire Department (650) 903-6803 G 0 no BLS(City) Mountain View Police Department (650) 903-6354 G 0 no BLS(City) Palo Alto Fire Department (650) 329-2220 G 3 yes ALS(City) Palo Alto Police Department (650) 329-2556 G 0 n BLS(City) San Jose Fire Department (408) 277-4084 G 0 on ALS(City) San Jose Police Department (410) 277-4000 G 0 on BLS(City) Santa Clara Fire Department (408) 984-3054 G 0 o ALS(City) Santa Clara Police Department (408) 261-5324 G 0 no BLS(Town) Los Gatos Police Department (408) 354-4257 G 0 no BLSAMR-West (408) 574-3800 G 60 yes ALSAMTRAK Police (408) 271-3546 G 0 no BLSBayStar Medical Services (415) 259-6110 G 18 yes ALSBayshore Ambulance (415) 525-3855 G 4 yes BLSBay Trans Ambulance (908) 565-9000 G 4 yes BLSCDF (408) 779-2121 G 0 no BLSCDF (831) 335-5353 x109 G 0 no BLSCHP - Gilroy (408) 848-2324 G 0 yes BLSCHP - Redwood City (650) 369-6261 G 0 no BLSCHP - San Jose (408) 277-1800 G 0 no BLSCSU Police Dept. (408) 924-2222 G 0 no BLSCalifornia Comm College District Police (650) 949-7317 G 0 no BLSCalifornia Comm College District Police (408) 864-5555 G 0 no BLSCalifornia Comm College District Police (408) 288-3735 G 0 no BLS



Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityCalifornia Medical Transportation (650) 428-0911 G 8 yes BLSCalifornia Shock Trauma Air Rescue (510) 887-3063 A 1 yes ALSCalifornia Comm College District Police (408) 741-2092 G 0 no BLSCentral FPD (408) 378-4010 G 0 no BLSFBI - San Jose (408) 998-5633 G 0 no BLSGolden State Medical Services (408) 879-1400 G 3 yes BLSIBM Corp.- STL Security (408) 463-4422 G 3 yes BLSLifeflight (650) 725-4829 A 1 yes ALSLockheed Fire Department (408) 742-5221 G 0 no BLSMid-Peninsula Regional Open (650) 691-1200 G 0 no BLSMoffett Field Fire Department (650) 604-5416 G 0 no BLSPajaro Valley Fire Agency (831) 722-0125 G 0 no BLSSouth Santa Clara Co. Rural Fire (408) 779-2121 G 0 no BLSSanta Clara Co. Fire Department (408) 378-4010 G 0 no ALSSanta Clara Co. Parks Department (408) 358-3741 G 0 no BLSSanta Clara Co. Sheriff's Department (408) 299-2101 G 0 no BLSSaratoga FPD (408) 867-9001 G 0 no BLSStanford Deputy Public Safety (650) 725-2149 G 0 no BLSStephens & Poletti Ambulance (831) 637-7474 G 2 yes BLSSunnyvale Department of Public Safety (408) 730-7162 G 0 no BLSUnited Technical Corporation (408) 776-4282 G 1 yes BLSWestmed Ambulance (510) 614-1423 G 2 yes BLS


Santa Cruz County EMS AgencyLocal EMS AgencyBob Varty, Acting EMS Administrator1080 Emeline AvenueSanta Cruz, California 95061(831) 454-4120

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time)Local Govt 153.935 155.055 131.8 PrimHEAR Net 155.385 155.385 CSQ AltStatewide Medical Coordination

N/A N/A N/A N/ACalling Channel Private 47.66 47.66 103.5 PrimDispatch (for each EMS Agency) Med 3 468.050 463.050 173.8/ Prim

186.2Direct to hospitals*

N/A N/A N/A N/AOther (e.g. tactical, etc.) Fire-Red 153.770 154.325 162.2 Prim

Emergency Department Facilities TelephoneWatsonville Community Hospital (831) 724-4741298 Green Valley RoadWatsonville, California 95076

Dominican Santa Cruz Hospital (831) 462-77001555 Soquel DriveSanta Cruz, California 95065

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAMR (831) 423-7030 G 10 yes ALSAptos/La Selva FPD (831) 685-6690 G 0 no ALSCentral Fire Protection District (831) 479-6842 G 0 no ALS

* Ambulance communication to hospitals : BLS –MED 8 ALS – MED1and MED 4 – varies by location


Sierra-Sacramento Valley EMS AgencyLocal EMS AgencyLeonard R. Inch, EMS Administrator5995 Pacific StreetRocklin, California 95677(916) 625-1701

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) N/R N/R N/R N/RStatewide Medical Coordination

N/R N/R N/R N/RCalling Channel

N/R N/R N/R N/RDispatch (for each EMS Agency) N/R N/R N/R N/RDirect to hospitals N/R N/R N/R N/ROther (e.g. tactical, etc.)

N/R N/R N/R N/R

Emergency Department Facilities TelephoneSierra Nevada Memorial Hospital (530) 274-6020155 Glasson WayGrass Valley, California 95945

Tahoe Forest Hospital (530) 587-601110121 Pine AvenueTruckee, California 96161

Sutter Roseville Medical Center (916) 781-1200One Medical PlazaRoseville, California 95661

Sutter Auburn Faith Hospital (530) 885-720111815 education StreetAuburn, California 95604

Sutter General Hospital (916) 733-30002801 L StreetSacramento, California 95816

UC Davis Medical Center (916) 734-22352315 Stockton Blvd.Sacramento, California 95817

Sutter Davis Hospital (530) 756-6440Road 99Davis, California 95616

Woodland Memorial Hospital (530) 662-36911325 Cottonwood StreetWoodland, California 95695

Rideout Memorial Hospital (530) 742-7381726 Fourth StreetMarysville, California 95901


Sierra-Sacramento Valley EMS Agency

Emergency Department Facilities TelephoneSierra Nevada Memorial Hospital (916) 274-6020155 Glasson WayGrass Valley, California 95945

Tahoe Forest Hospital (530) 587-601110121 Pine Ave.Truckee, California 96161

Sutter Roseville Medical Center (916) 781-1200333 Sunrise Ave.Roseville, California 95661

Sutter Auburn Faith Hospital (916) 885-720111815 Education St.Auburn, California 95603

Sutter Davis Hospital (916) 756-6440Road 99Davis, California 95616

Woodland Memorial Hospital (916) 662-36911325 Cottonwood St.Woodland, California 95695

Rideout Memorial Hospital (916) 742-7381726 Fourth St.Marysville, California 95901

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAmerican Medical Response (916) 563-0600 G 22 yes ALSAlpine Meadows (530) 583-2342 G 0 no BLSAlta Volunteer Fire Department (530) 389-2676 G 0 no BLSAuburn Fire Department (530) 823-4265 G 0 no BLSBeale AFB FD (530) 634-8672 G 0 no BLSBi-County Ambulance (530) 674-2780 G 10 yes ALSCALSTAR (530) 887-8259 A 4 yes ALSCDF - Nevada/Yuba/Placer (530) 823-4904 G 0 no BLSCDF- Lake/Napa/Yolo RU (707) 963-3601 G 0 no BLSCHP (530) 823-4055 A 1 yes ALSCamptonville Volunteer Fire Department (530) 288-3425 G 0 no BLSCapay Valley Fire (530) 796-3300 G 0 no BLSClarksburg FPD (530) 744-1700 G 0 no BLSColfax Fire Department (530) 346-2323 G 0 no BLSDavis Fire Department (530) 756-3743 G 0 no BLSDobbins Oregon House FPD (530) 692-2255 G 0 no BLSDonner Summit Fire Department (530) 426-3000 G 2 yes ALS



Dry Creek Fire Department (530) 771-0107 G 0 no ALSDunningan FPD (530) 724-3314 G 0 no BLSDutch Flat Fire Department (530) 389-2287 G 0 no BLSEast Nicolaus Fire Department (530) 656-2485 G 0 no BLSElkhorn Volunteer Fire Department (530) 371-4541 G 0 no BLSEsparto FPD (530) 787-3300 G 0 no BLSFoothill Vol. Fire Department (530) 675-2383 G 0 no BLSForesthill Safety Club (530) 367-2509 G 2 yes ALSForty-Niner FPD (530) 265-4431 G 0 no BLSGrass Valley Fire Department (530) 274-4370 G 0 no BLSHiggins FPD (530) 269-2488 G 0 no BLSKnights Landing Fire Department (530) 735-6590 G 0 no BLS

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityLincoln Fire Department (916) 645-4040 G 0 no BLSLinda Fire Department (530) 743-1553 G 0 no BLSLive Oak Fire Department (530) 695-3522 G 0 no BLSLoma Rica/ Browns Valley CSD (530) 692-1616 G 0 no BLSLoomis FPD (916) 652-6858 G 0 no BLSMadison FPD (530) 662-5745 G 0 no BLSMarysville Fire Department (530) 741-6622 G 0 no BLSMeridian Fire Department (530) 696-2306 G 0 no BLSNevada City Fire Department (530) 265-2351 G 0 no BLSNevada Co. Cons. Fire (530) 273-3158 G 0 no BLSNewcastle FPD (530) 663-3323 G 0 no BLSNorth San Juan FPD (530) 292-9159 G 0 no BLSNorth Tahoe FPD (530) 583-6913 G 7 yes ALSNorthstar Fire Department (530) 562-1212 G 0 no BLSOlivehurst PUD (530) 743-7117 G 0 no BLSOphir Hill FPD (916) 273-8351 G 0 no BLSOswald-Tudor (916) 673-2804 G 0 no BLSPeardale-Chicago Park FPD (530) 273-2503 G 0 no BLSPenryn FPD (530) 663-3389 G 0 no BLSPlacer Co. Fire (530) 823-4904 G 0 no BLSPlacer Foothills Cons. FPD (530) 889-7991 G 0 no BLSPlacer Hills Fire (530) 878-0405 G 0 no ALSPleasant Grove Fire Department (530) 655-3937 G 0 no BLSPlumas-Brophy FPD (530) 633-2727 G 0 no BLSREACH (707) 447-6886 A 2 yes ALSRocklin Fire Department (916) 632-4150 G 0 no BLSRough & Ready FPD (530) 432-1140 G 0 no BLSSierra NV Memorial Hospital Ambulance (530) 274-6000 G 7 yes ALSSmartville FPD (800) 540-2008 G 0 no BLSSouth Placer Fire (916) 791-7059 G 3 yes ALSSquaw Valley Fire Department (530) 583-6111 G 0 no BLSSutter Basin FPD (530) 738-4220 G 0 no BLSSutter CDF (530) 741-7370 G 0 no BLSSutter Fire Department (530) 755-0266 G 0 no BLSTruckee Fire (530) 582-7850 G 4 yes ALSU.S. Forest Service (530) 288-3231 G 0 no BLSU.S.F.S. (530) 367-2224 G 0 no BLSU.S.F.S.Tahoe National Forest (530) 478-6221 G 0 no BLSU.S.F.S.Truckee Ranger District (530) 587-3558 G 0 no BLSUC Davis Fire Department (530) 752-1236 G 0 no BLSWalton Fire Department (530) 673-7833 G 0 no BLS



Vehicle Characteristics

Emergency Providers Telephone TYPE AMB’s TRANS EMT CapacityWatt Park FPD (530) 273-8088 G 0 no BLSWest Plainfield FPD (530) 756-0212 G 0 no BLSWest Sacramento Fire Department (530) 373-5840 G 0 no BLSWheatland Fire Department (530) 633-2930 G 0 no BLSWillow Oak FPD (530) 662-0781 G 0 no BLSWinters Fire Department (530) 795-4131 G 1 yes BLSWoodland Fire Department (530) 661-5844 G 0 no BLSYolo FPD (530) 662-8808 G 0 no BLSYuba City Fire Department (530) 741-4691 G 0 no BLSZamora FPD (530) 662-6883 G 0 no BLS


Solano County EMS Agency

Local EMS AgencyMichael Frenn, EMS Administrator1735 Enterprise Drive, Bldg. 3, MS3-110Fairfield, California 94533(707) 421-6685

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) N/R N/R N/R N/R Statewide Medical Coordination



N/R N/R N/R N/R

Emergency Department Facilities TelephoneN/R N/R

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityN/R N/R N/R N/R N/R N/R


Sonoma, Mendocino EMS Agency

Local EMS AgencyKent Coxon, EMS Administrator1030 Center Drive, Suite DSanta Rosa, California 95403(707) 525-6501

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) 155.100 155.100 N/A N/A 155.265 155.265 N/A N/A Med 1 468.000 463.000 N/A N/A Med 2 468.025 463.025 N/A N/A Med 3 468.050 463.050 N/A N/A Med 4 468.075 463.075 N/A N/A Med 5 468.100 463.100 N/A N/A Med 6 468.125 463.125 N/A N/A Med 7 468.150 463.150 N/A N/A Med 8 468.175 463.175 N/A N/AStatewide Medical Coordination


N/A N/A N/A N/ADispatch (for each EMS Agency) 155.835 155.100 N/A N/A 155.265 155.265 N/A N/ADirect to hospitals 155.355 155.355 N/A N/AOther (e.g. tactical, etc.) Hospital-to-Hospital 155.340 155.340 N/A N/A

Emergency Department Facilities TelephoneHealdsburg General Hospital (707) 431-65001375 University AvenueHealdsburg, California 95448

Howard Memorial Hospital (707) 459-68011 Madron StreetPO Box 1430Willits, California 95490

Kaiser-Santa Rosa (707) 571-4000 Main401 Bicentennial Way (707) 571-4510 EDSanta Rosa, California 95403

Mendocino Coast District Hospital (707) 961-1234700 River DriveFt. Bragg, California 95437

Palm Drive Hospital (707) 823-8511501 Petaluma AvenueSebastopol, California 95472

Petaluma Valley Hospital (707) 778-2634 Main400 North McDowell Blvd. (707) 864-1250 EDPetaluma, California 94952


Sonoma, Mendocino EMS Agency

Emergency Department Facilities TelephoneRedwood Coast Medical Services (707) 884-400546900 Ocean DriveGualala, California 95455

Santa Rosa Memorial Hospital (707) 546-3210 Main1165 Montgomery Drive (707) 525-5207 EDSanta Rosa, California 95405

Sonoma Valley Hospital (707) 935-5000347 Andrieux StreetSonoma, California 95476

Sutter Medical Center (707) 576-4000 Main3325 Chanate Road (707) 576-4040 EDSanta Rosa, California 95404

Ukiah Valley Medical Center (707) 462-3111275 Hospital DriveUkiah, California 95482

Warrack Hospital (707) 542-90302449 Summerfield RoadSanta Rosa, California 95405

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAmerican Medical Response (707) 579-9421 G 10 yes ALSAnderson Valley Ambulance (707) 895-3123 G 1 yes ALSBell's Ambulance Service (707) 433-1408 G 3 yes ALSBodega Bay Fire Dept. (707) 875-3700 G 1 yes ALSBrooktrails Fire Department Ambulance (707) 459-4441 G 1 yes BLSCALSTAR (707) 462-5972 N/R N/R N/R ALSCDF-Helo 101 (707) 459-7408 A 1 no BLSCloverdale Ambulance Service (707) 894-5862 G 1 yes ALSCoast Life Support (707) 884-1216 G 2 yes ALSCovelo Fire Department Ambulance (707) 983-6719 G 2 yes BLSElk Fire Department (707) 877-3350 G 2 yes BLSLaytonville Fire Department (707) 984-6055 G 2 yes ALSMendocino Coast Hospital Ambulance (707) 961-1234 G 2 yes ALSPetaluma Fire (707) 778-4390 G 2 yes ALSREACH Helicopter (707) 575-6886 A 2 yes ALSRedwood Empire Life Support (707) 542-6771 G 20 yes ALSRussian River FPD (707) 869-9089 G 3 yes ALSSonoma Co. Sheriff Department (707) 527-9595 A 1 yes ALSSonoma Fire - Medical (707) 996-2102 G 2 yes ALSUkiah Ambulance (707) 462-3001 G 4 yes ALSUkiah Fire Department (707) 463-6274 G 3 yes ALSUkiah Flightcare (707) 462-1414 A 1 yes ALSWillits Ambulance (707) 459-7088 G yes ALS


Tulare County EMS AgencyLocal EMS AgencyPatty Crawford, EMS Administrator5957 South Mooney Blvd.Visalia, California 93277(559) 737-4660

Channel Use TX-Freq RX-Freq CTCSS Prim/AltLocal Medical Coordination (real time) N/R N/R N/R N/RStatewide Medical Coordination



N/R N/R N/R N/R

Emergency Department Facilities TelephoneKaweah Delta District Hospital (559) 625-2211 Main400 W. Mineral King (559) 625-7215 EDVisalia, California 93277

Tulare District Hospital (559) 688-0821 Main869 Cherry Street (559) 685-3450 EDTulare, California 93274

Sierra View District Hospital (559) 784-1110 Main465 W. Putnam (559) 784-8885 EDPorterville, California 93257

Alta District Hospital (559) 591-4171500 Adelaide WayDinuba, California 93618

Lindsay Hospital (559) 562-4955PO Box 40Lindsay, California 93247

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAmerican Ambulance (559) 730-3015 G 5 yes BLSCalifornia Hot Springs Ambulance (805) 548-6595 G 1 yes BLSCamp Nelson Vol. Ambulance Association (559) 542-2140 G 2 yes BLSDinuba Fire Department (559) 591-3152 G 4 yes BLSExeter District Ambulance (559) 594-5250 G 3 yes BLSImperial Ambulance (559) 784-8500 G 6 yes BLSLifeStar Ambulance (559) 688-2550 G 6 yes BLSMobile Life Support (559) 730-3022 G 7 yes BLSThree Rivers Ambulance (559) 561-4264 G 1 yes BLS


Tuolumne County EMS AgencyLocal EMS AgencyDan Burch, EMS Administrator1210 Sanguinetti RoadSonora, California 95370(209) 533-7405



155.295 155.295 N/A N/ACalling Channel

N/A N/A N/A N/ADispatch (for each EMS Provider)

462.250 462.250 N/A N/ADirect to hospitals

462.400 462.400 N/A N/AOther (e.g. tactical, etc.)

N/A N/A N/A N/A

Emergency Department Facilities TelephoneTuolumne General Hospital (209) 533-7100 Main101 Hospital Road (209) 533-7130 EDSonora, California 95370

Sonora Community Hospital (209) 532-31611 South Forest Road (209) 533-3161 x2450Sonora, California 95370

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityTuolumne Co. Ambulance (209) 532-3227 G 8 yes ALS


Ventura County EMS AgencyLocal EMS AgencyBarbara Brodfuehrer, EMS Administrator2323 Knoll DriveVentura, California 93003(805) 677-5270


155.205 155.205 103.5 Prim Cellular Phone N/A N/A N/A AltStatewide Medical Coordination


155.205 155.205 103.5 N/ADispatch (for each EMS Provider)

155.205 155.205 103.5 N/ADirect to hospitals

155.205 155.205 103.5 N/AOther (e.g. tactical, etc.) 12 Designated SEMS channels for disasters N/A N/A N/A Composed of 12 county

departmental frequencies

Emergency Department Facilities TelephoneVentura County Medical Center (805) 652-60003291 Loma Vista RoadVentura, California 93003

Columbia Los Robles Medical Center (805) 497-2727215 West Janss RoadThousand Oaks, California 91360

St. John’s Regional Medical Center (805) 988-25001600 North Rose AvenueOxnard, California 93030

Simi Valley Hospital and Health Care Center (805) 527-24622975 N. Sycamore DriveSimi Valley, California 93062

Community Memorial Hospital (805) 652-5011Loma Vista at BrentVentura, California 93003

Ojai Valley Community Hospital (805) 646-14011306 Maricopa HighwayOjai, California 93023

St. John’s Pleasant Valley Hospital (805) 484-28312309 Antonio AvenueCamarillo, California 93010

Santa Paula Memorial Hospital (805) 525-7171825 North 10 th StreetSanta Paula, California 93060


Ventura County EMS Agency

Vehicle CharacteristicsEmergency Providers Telephone TYPE AMB’s TRANS EMT CapacityAmerican Medical Response (805) 495-4668 G 16 yes ALSFillmore Fire Department (805) 524-5707 G 0 no BLSGold Coast Ambulance (805) 487-5541 G 8 yes ALSMercy Air (800) 222-3456 A 1 yes ALSOjai Ambulance Service (805) 646-9000 G 2 yes ALSOxnard Fire Department (805) 385-7722 G 0 no BLSSanta Paula Fire Department (805) 525-4478 G 0 no BLSVentura City Fire Department (805) 339-4300 G 0 no ALSVentura Co. FPD (805) 389-9710 G 0 no BLSVentura Co. Sheriff Search/Rescue (805) 654-2381 A 0 yes ALSVentura Co. Federal Fire Dept. (805) 989-8302 G 0 no BLS


GENERAL ACRONYMS AND GLOSSARY FOR EMS COMMUNICATIONS

Acronyms

AAAT—above average terrainAC--alternating currentACD—automatic call distributorACLS—advanced cardiac life supportACSB—amplitude compandored single-sidebandADP—automatic data processingAGL—above ground levelALS—advanced life supportALERT—automatic law enforcement response teamALI—automatic location identificationAM—amplitude modulationAMSL—above mean sea levelANI—automatic number identificationAPB—all points bulletinAPCO—Associated Public-Safety Communications

OfficersASCII—American Standard Code for Information

InterchangeASTM—American Society for Testing and Materials.ASTRA—Automated Statewide Telecommunications And

Records AccessATLS—Advanced Trauma Life SupportAT&T—American Telephone and Telegraph CompanyAVC—automatic volume controlAVI—automatic vehicle identifications

Bbalun—balanced-to-unbalanced line transformerBCD—binary coded decimalBFO—beat frequency oscillatorBIT—binary digitBLS—basic life supportBPS—bits per second.BSC—binary synchronous communications

CC—CelsiusCAD—computer –aided DispatchCB—citizens bandCCH—computerized criminal historyCCITT—International Telegraph And Telephone

Consultative CommitteeCCSA—common control switching arrangementCCTV—closed circuit televisionCCU—Coronary Care Unit or Critical Care UnitCDC—Cooperative Dispatch CenterCG—Channel Guard(R) Trademark of General ElectricCMED—Central Medical Emergency DispatchCMR—Common Mode RejectionCMRR—Common Mode Rejection RadioCNIL—Calling Number Identification and LocationCO—Central OfficeCOG—Council of GovernmentsCOR—Coronary Observation RadioCPR—cardiopulmonary resuscitationCJIS—Criminal Justice Information SystemCTCSS—Continuous Tone Controlled Squelch System

DdB—decibeldBm—decibel reference to 1 mW.dBu—decibel referenced to 1 µV/mdBv—decibel referenced to 1 VdBW—decibel referenced to 1 WDC—direct currentDCS—Division of Computer ServicesDDD—direct distance dialingDID—direct inward dialingdod—direct outward dialingDOD—US Department of DefenseDOT—US Department of TransportationDRG—diagnosis related groupingDP—double poleDPDT—double pole double throwDTMF—dual-tone multi-frequencyDPST—double pole single throw

EEACOM—emergency and administrative communications

systemEAS—extended area serviceE & M-–the receive and transmit leads of a signaling

systemEAX—electronic automatic exchangeECC—emergency communications centerEDP—electronic data processingEIA—Electronic Industries AssociationEMD—emergency medical dispatcherEMF—electromotive forceEKG—electrocardiogramEMDPRS—emergency medical dispatch priority reference

systemEMS—emergency medical serviceEMSS—emergency medical service systemEMT—emergency medical technicianEMT-B—emergency medical technician-basicEMT-AI—emergency medical technician-advanced

intermediateEMT-D—emergency medical technician-defibrillatorEMT-I—emergency medical technician-intermediateEMT-IV—emergency medical technician-intravenous

certifiedEMT-P—emergency medical technician-paramedicEOC—emergency operations centerEOM—end of messageERCC—emergency resource coordination centerERP—effective radiated powerESS—electronic switching systemEST—Eastern Standard TimeETA—Estimated Time of ArrivalETV—Educational Television

FF—FahrenheitFCC—US Federal Communications CommissionFCCA—Foresty Conservation Communications

AssociationFEMA—Federal Emergency Management AgencyFET—field-effect transistor


FM—frequency modulationFreq.—frequencyFORTRAN—formula translation (computer language)FSK—frequency-shift keyingFX—foreign exchange

GGE—General ElectricGESS—General Electric Service StationGFW—ground fault warningGHZ—gigahertz (1000 MHz)GIGO—garbage in, garbage outGMT—Greenwich Mean Time (Zulu)GSA—General Services AdministrationGT&E—General Telephone and Electronics

HHEAT—hospital emergency administrative radioHF—high frequencyHYSIS—highway safety information systemHV—high voltageHz—hertz

II—current in amperesIAFC—International Association of Fire ChiefsIACP—International Association of Chiefs of PoliceIC—integrated circuitICO—individual channel oscillatorICOM—integrated circuit oscillator moduleICU—intensive care unitICX—intercity exchange linkIEEE—Institute of Electrical and Electronic EngineersIF—intermediate frequencyIMSA—International Municipal Signal AssociationIMTS—improved mobile telephone serviceIRAC—Interdepartmental Radio Advisory CommitteeISPERN—Illinois State Police Emergency Radio NetworkIT&T—International Telephone and Telegraph

CorporationITU—International Telecommunication Union

J

JAN—Joint Army-Navy SpecificationsJETEC—Joint Electron Tube Engineering CouncilJFET—junction field-effect transistorJEMS—Journal of Emergency Medical Services

Kkbps—kilobits per secondkHz—kilohertz (1000hertz)

LLATA—local access transport areaLMR—land mobile radioLEAA—Law Enforcement Assistance AdministrationLETS—Law Enforcement Teletypewriter ServiceLORAN—long range navigationLSI—large scale integrationLOS—line of sightLRO—lead regional organizationLSU—life support unit

MMAST—Military Assistance to Safety and TrafficMCCU—mobile coronary care unitMF—medium frequencyMHz—MegahertzMICT—Mobile Intensive Care TechnicianMICU—Mobile Intensive Care UnitMRCC—Medical Resource Coordination Center

NNABER—National Association of Business and E Radio,

Inc.NCIC—National Crime Information CenterNCMCN—North Carolina Medical Communications

NetworkNEAR—national emergency aid radioNHTSA—National Highway Traffic Safety AdministrationNLETS—national law enforcement telecommunications

systemNPA—Number Plan Area

OO-D—origin-destinationONI—operator number identificationOTP—Office of Telecommunications Policy

PPABX—Private Automatic Branch ExchangePBX—Private Branch ExchangePL—Private Line(r) Trademark of MotorolaPM—Pulse ModulationPSAP—public safety answering pointPSCC—Public Safety Communications CouncilPTT—Press to Transmit or Push to Talk

QQEI—quantifiable evaluation indicator

RRCU—remote control unitRF—radio frequencyRx—receive

SSERS—Special Emergency Radio ServiceSIRSA—Special Industrial Radio Service AssociationSMR—Specialized Mobile RadioSMSA—standard metropolitan statistical areaSPA—State Planning AgencySWR—Standing Wave Radio

TTASI—time assignment speech interpolationTCAM—telecommunications access methodTelco—telephone companyTPL—terminal per lineTPS—terminal per stationTx—transmit

UUHF—ultra high frequencyUL—Underwriters Laboratories, Inc.


UPS—uninterruptible power supplyUSIT—US Independent Telephone AssociationUSFS—US Forest Service

VV—voltsVAC—volts, alternating currentVDC—volts, direct currentVHF—very high frequencyVOM—volt-ohm meterVOR—voice operated relayVOX—voice operated switchVSWR—voltage standing wave ratioVTVM—vacuum tube voltmeterVU—Volume Unit

WWATS—Wide Area Telephone ServiceWECO—Western Electric CompanyWPM—words per minute

XXcvr.—transceiverXfmr.—transformerXmit.—transmitXmtr—transmitterXtal—crystal

ZZ—impedanceZULU—time zone at Greenwich, England

FCC Codes and Names of RadioServices

industrial:IB—businessIF—forest productsIM—motion pictureIP—petroleumIS---special industrialIT—telephone maintenanceIW—powerIX—manufacturersIY—relay press

Motor Carrier:LI—interurban passengerLJ—interurban propertyLU—interurban passengerLV—urban property

Land Transportation:LA—automobile emergencyLR—railroadLX—taxicab

Public Safety:PF—firePH—highway maintenancePL—local governmentPP—police

PO—forestry conservationPS—special emergencyRS---radio locationZA—general mobile

Classes of Radio Stations (FCC):FB—baseFB2—mobile relayFB4—community repeaterFX1---controlMO—mobileMO3—mobile/vehicular repeaterFXO—operational fixedFX2—fixed relayFX—fixedFLT—auxiliary testFXY—interzoneFXZ—zoneLR—radio locationMR—radio location mobile

806-821/851-866 MHz Bands:Conventional Category

TrunkedGB business YBGO industrial/land transportation YOGP public safety/special emergency YPGX commercial (SMRS) YX

292-930 MHz Band:GS—private carrier paging systems

Glossary

acoustic feedback—The transfer of sound waves from aloud speaker or end terminal to any previouscomponent within an audio system.

activity—The expenditure of time and resources.adapter—A device used for changing the terminal

connectionsof a circuit or part to connect to another circuit orpart with unlike connections.

alphabet, phonetic—A method of passing alphabeticinformation substitution over a poor communicationpath with word substitution for letters. Onephonetic alphabet is: Alfa, Bravo, Charlie, Delta,Echo, Foxtrot, Golf, Hotel, India, Juliett, Kilo, Lima,Mike, November, Oscar, Papa, Quebec, Romeo,Sierra, Tango Uniform, Victor, Whiskey, X-ray,Yankee, Zulu.

American Standard Code for Information Interchange(ASCII)—An eight-level code for data transferadopted by the American Standards Association toachieve compatibility between data devices.

amplitude compandored single-sideband—A form ofsideband modulation used for narrow channeltransmission that incorporates a pilot tone.

amplitude modulation(AM)—Modulation in which theamplitude of the carrier-frequency current is variedabove and below its normal value in accordancewith the audio, picture, or other intelligence signalto be transmitted.

analog—Physical representation of information such thatthe representation bears an exact relationship to the


original information. Pertaining to data in the formof continuously variable physical qualities.

analog communication—System of telecommunicationsused to transmit information other than voice whichis sometimes used in telemetry.

antenna—A system of wires or electrical conductorsemployed for reception or transmission of radiowaves. Specifically, a radiator that couples thetransmission line or lead-in to space for transmissionor receptions of electromagnetic radio waves. Itchanges electrical currents into electromagneticradio waves and vice versa.

antenna, isotropic—A theoretical antenna with identicalradiation in every direction.

antenna, parabolic—A directional antenna with aradiating(or receiving) element, and a parabolicreflector that concentrates the power in a beam.

antenna polarization—The direction of the radiatedelectrical field in relation to the surface of the earth.Generally vertical in mobile radio use.

arc—A discharge of electricity.arrester, lightning—A device designed to protect

electrical equipment or property from damage bylightening.

assigned frequency—The frequency appearing on astation authorization from which the carrierfrequency may deviate by an amount not to exceedthat permitted by the frequency tolerance.

Associated Public-Safety Communications Officers(APCO)—A non-profit public safety radio usersgroup composed of administrators andcommunications technical, operations, andcommand personnel.

ASTM—A scientific and technical organization formed forthe development of standards on characteristics andperformance of materials, products, systems, andservices.

attack time—The interval required after a sudden increasein input signal to a transducer (transmitter, receiver,etc.) to attain a percentage of final output level dueto this increase.

attenuation—The decrease in amplitude of a signalduring its transmission from one point to another. Itmay be expressed as a ratio or, by extension of theterm, in decibels.

attenuator—A device for reducing the energy of a wavewithout introducing distortion. Also called a pad,gain control, level adjustor, volume control, etc.

audible signal—A buzzer, bell, or other audible sounddevice that indicates an incoming call.

audio—Pertaining to frequencies corresponding tonormally audible sound waves. These frequenciesrange from 15 to 20,000 Hz.

aural—Pertaining to the ear or sound.automatic gain control (AGC)—A receiver circuit that

maintains the output constant with wide variationsin the in the receiver input level.

automatic volume control (AVC)—A self-acting gaincontrol which maintains the output of a receiverconstant despite variations in received signalstrength.

automatic number identification (ANI)—Equipment forrecording the calling party’s number withoutoperator intervention.

Bback bone—A point-to-point communications system

utilizing several stations.back-to-back repeater—A repeater consisting of a

receiver and transmitter with the output of thereceiver connected directly to the input of thetransmitter.

band (radio frequency)—A range of frequencies betweentwo definite limits. By international agreement, theradio spectrum is divided into nine bands. Forexample, the very high frequency (VHF) bandextends from 30 MHz to 300 MHz.

bandpass filter—Passes frequencies within a specifiedband, and attenuates all frequencies outside thatband.

bandwith—(1) The width of a band of frequencies usedfor a particular purpose, (2) the range of frequencieswithin which a performance characteristic of adevice is above specified limits. For filters,attenuators, and amplifiers these limits are generallytaken to be 3 dB (half-power) below the averagelevel.

baseband—For microwave systems, the availablefrequency band that the RF equipment is capable oftransmitting.

base station—An item of fixed radio hardware consistingof a transmitter and receiver.

baud—Used to define the operating speed of a printingtelegraph of data system. It is the total number ofdiscrete conditions or signal events per second.

baudot code—A five-unit code used for teletypewritersignals.

beacon—A radio transmitter or lights designed to indicateexact geographical location or direction.

beam—A configuration of radiated energy whose rays aresharply directional and parallel.

beat—A regularly recurring pulsation from thecombination of two-tone or frequency waves ofdifferent frequencies.

beat frequency—the frequency produced when signals oftwo different frequencies are combined andrefracted. The beat frequency is equal in value tothe difference between the original frequencies.

bel—A unit of relative power, named after AlexanderGraham Bell, and used to express differences inpower.

beeper—a pocket paging receiver that emits a beepingsound upon receiving a page specifically directed toit.

biomedical telemetry (biotelemetry)—The technique ofmonitoring or measuring vital biological parametersand transmitting data to a receiving point at aremote location.

Biophone—Trade name of Biocom, Inc. for portabletelemetry devices.

bit—A unit of digital information (abbreviation of “binarydigit”).

boom microphone—A microphone arranged on an armtype mechanical support to permit better placementof the microphone.

braid—A group of fibrous or metal filaments or threadswoven into a cylindrical shape to form a coveringover one or more wires.

broadcast—Radio or television transmission intended forgeneral reception.


Business Radio Service—A subpart of the Industrial RadioServices section of the FCC rules.

busy indicator—An indicator provided at a control pointto indicate the in-use condition of a circuit orchannel.

Ccable—One or more insulated or noninsulated wires used

to conduct electrical current or impulses. Groupedinsulated wires are called a multi-conductor cable.

calibrate—To determine error by comparison with aknown standard.

call, all—The alerting of all decoder equipped units in asystem by the transmission of a single coded signal.

call, group—The alerting of subdivided selective callgroups by function, type of vehicle, location, etc. bysending a single coded signal.

call, individual—The alerting of a specific coded decoderunit by sending a single coded signal.

call answer—The initial answer of a call for assistancewhether by 9-1-1 or other telephone method.

call sign—Federal Communications Commission assignedidentifying letters and numbers used foridentification of a radio station, transmitter, ortransmission.

call referral method—The calling party is referred to asecondary number

call relay method—The call is answered at the PSAPwhere the pertinent information is gathered andthen the interrogator relays the information to theproper public safety agency for their action. Thiscan be accomplished by radio, intercom, telephone,etc.

call transfer method—The PSAP interrogator determinesthe proper responding agency and connects the userto that agency which then performs the necessarydispatching in accordance with prearranged planswith cooperating agencies.

call party hold—Enables the public safety answeringpoint to control the connection for confirmation andtracing of a call.

capture effect—An effect occurring in FM receptionwhen the stronger of two signals on the samefrequency suppresses the weaker signal.

cardioid microphone—A microphone having a heart-shaped space response pattern of 180° in front, andminimum response in the rear.

carrier—A radio signal generally without voice or otherinformation.

carrier control timer (CCT)—A device that limits thelength of time that the transmitter carrier is on.

carrier frequency—The frequency of an unmodulatedelectromagnetic wave produced by the transmitter.

cavity resonator—A space enclosed by a metal conductorin which oscillating electromagnetic energy is storedand whose resonant frequency is determined by thegeometry of the enclosure.

cellular radio—A commercially available mobile orportable radio telephone service.

Celsius—The metric scale of temperature in which waterfreezes at zero degrees and boils at 100°C. Toconvert a Celsius temperature to Fahrenheit,multiply by 9/5 and add 32.

central medical emergency dispatch(CMED)—Seecommand and control center.

central office—Sometimes called a wire center; thesmallest subdivision within the telephone systemwhich has relatively permanent geographicboundaries.

change out—To replace.channel element—A temperature compensated crystal

oscillatorchannel guard—General Electric’s trademark for

continuous tone coded squelch system (CTCSS).channel, point-to-point—A radio channel used for radio

communications between two definite fixed stations.channel, radio—An assigned band of radio frequencies of

sufficient width to permit its use for radiocommunication. The necessary width of a channeldepends on the type of transmission and thetolerance for the frequency of emission.

channel, television—A band of radio frequencies 6 MHzwide used for television broadcast

channelization—The assignment of circuits to channels,and the arrangement of those channels into groups.

charge—To replenish the electrical potential in a batteryor capacitor.

charge, fast or quick—A method of quickly rechargingbatteries under controlled conditions.

charge, trickle—The continuous charge of a battery at aslow rate.

chart, 4/3 earth’s radius—A radio profile chart whosehorizontal lines are curved to correspond to an earthhaving a radius 4/3 times larger than actual earthradius.

chassis—The framework on which parts of a radio orother electronic circuits are mounted.

circuit merit—A rating of overall circuit quality. Circuitmerit ‘5” is clear circuit. Merit ‘3’ is readable withnoise. Any rating below ‘3’ is not readable andgenerally unacceptable.

class of service—Service order code designation of thecombination of telephone service features(equipment, calling area units, dial types) to whichbusiness and residence customers subscribe. It isused for rating, identification, and assignmentpurposes.

coaxial cable—A transmission line in which oneconductor completely surrounds the other, the twobeing coaxial and separated by a continuos soliddielectric or by dielectric spacers.

code dialing—A method of signaling or encoding anddecoding address codes by the use of standardtelephone dial.

command and control center (central communicationscenter)—A system which is responsible forestablishing communications channels andidentifying the necessary equipment and facilities topermit immediate management and control of anEMS patient. This operation must provide accessand availability to public safety resources essentialto the effective and efficient EMS management of theimmediate EMS problem.

common mode rejection (CMR)—The ability ofdifferential amplifier to reject unwanted signals.

communications subsystem—Comprises those resourcesand arrangements for notifying the EMS system of anemergency, for mobilizing and dispatchingresources, for exchanging information, for remotemonitoring of vital indicators, and for the radiotransmission of treatment procedures and directions.


communications system—a collection of individualcommunication networks, transmission system, relaystations, control and base stations, capable ofinterconnection and inter-operations that aredesigned to form an integral whole. The individualcomponents must serve a common purpose, betechnically compatible, employ commonprocedures, respond to control and operate inunison.

comparator—A circuit which compares tow or moresignals, and selects the strongest or best.

compression—In audio systems, reducing the volumerange of the input signal so that the minimum outputhas less noise, and the maximum output has lessdistortion.

compressor—A variable gain audio device used toprovide a relatively constant output level for a widerange of varying input levels.

cone of silence—The area directly over or under avertical transmitting antenna in which little or nosignal is radiated.

console—A cabinet housing electronic circuitry normallyused in controlling other equipment such stransmitters and receivers installed at a remotelocation.

consolette—(1) Motorola Communications name for adesk top radio station (2) A device for mounting amobile microphone, control head and speaker.

continuous tone controlled squelch system (CTCSS)—Asystem wherein radio receiver(s) are equipped witha tone responsive device which allows audio signalsto appear at the receiver audio output only when acarrier modulated with a specific tone is received.The tone must be continuously present forcontinuous audio output. CTCSS functions aresometimes referred to by various trade names suchas private line or PL(Motorola Communications &Electronics), Channel Guard or CG(General ElectricMobile Radio) or Quiet Channel (RCA).

control console—A desk-mounted, enclosed piece ofequipment which contains a number of controls orcircuits used to operate a radio station.

control head—A device with appropriate controls,microphone, volume, squelch, on/off, etc., generallymounted in a vehicle, from which control of theradio or mobile unit is performed.

control point—A position from which a radio system iscontrolled and supervised.

control, remote—A control scheme for a radio systemwhere all control functions are performed remotelyvia telephone lines.

continuous duty—(1) An unending transmission (2)Operating 100% of the time (3) EIA—full loadoutput under the manufacturers normal loadingconditions for the class of service for 24 hours.

control, local—A control system packaged with thecontrol unit mounted directly on the base station.

coordination, frequency—The cooperative selection andallocation of radio frequencies such that all systemscan operate with minimum interference.

couple—To connect two circuits so that signals aretransferred from one to the other.

coverage—In a radio communications system, thegeographic area where reliable communicationsexist; usually expressed in terms of miles extendingradially from a fixed radio station.

crosstalk—The unwanted transfer of energy from onecommunication circuit to another by means of amutual coupling.

crystal—A piece of quartz or similar material that hasbeen ground thin and to the proper size to producevibrations at the desired frequency. Used in radiotransmission to generate, with a high degree ofaccuracy, the assigned carrier frequency of a station.

cut over—To transfer from one system to another.cycle—One complete reversal of an alternating current,

including a rise to the maximum level in onedirection and a return to zero. The number ofcycles occurring in one second is the frequency ofthe current. The word cycle is commonly used tomean cycles per second (hertz).

DdBm—Decibels referenced to one milliwatt. Employed in

communication work as a measure of absolutepower. Zero dBm equals one milliwatt.

dBV—Decibels referenced to 1 V.dBW—Decibels relative to 1 W (1 dBw = 30 dBm).decibel (dB)—A unit which expresses the level of power

value relative to a reference power value.Specifically, the level of power, value P, relative to areference value, PR, in decibels is defined as dB =10*log10(P/PR).

DC control—A remote base station control scheme thatrequires metallic conductors and currents

decoding—The conversion and recognition by theaddressed (receiving) unit of numerical addresscodes that have been transmitted through acommunications system.

dedicated telephone line—A telephone wire pair,originating at one point, and terminating at anotherpoint, operating in a closed circuit. Also calledprivate line.

defibrillator—An electrical device used to eliminatefibrillation of the heart muscle, by the application ofhigh voltage impulses.

demodulation—The process of recovering the modulatinginformation from a modulated signal.

deviation ratio—The ratio of the maximum frequencydeviation of the RF carrier to the highest frequencycontained in the modulating band.

dial tone first—Allowance of a 9-1-1 or ‘0’ operator callsto be completed without the deposit of a coin in atelephone pay station.

digital—Data represented in discrete, discontinuous form,as contrasted with analog data represented incontinuous form.

digital dial code—A signaling technique generally used inVHF radio systems to bypass a receiver CTCSSsystem

diplexer—A device which enables the use of two radiotransmitters, operating on different frequencies, onthe same antenna simultaneously.

direct—In terms of communications circuits, means adedicated instant method of communications. Adial telephone is not direct, a radio or a ring downline are direct.

direct dispatch method—A system where all 9-1-1 callanswering and radio dispatching is performed by thepersonnel at the public safety answering point.


direct distance dialing(DDD)—Telephone service whichpermits subscribers to dial their own long distancecalls.

direct leased land lines—Dedicated or designated point-to-point wire circuits telephone) used in transmittingvoice or data communications. See dedicatedtelephone line.

direct trunking—An arrangement where a telephone lineconnection has no intermediate points beforereaching the final destination (called) party.

directional antenna—An antenna which radiates radiowaves more effectively in some directions than inothers.

directivity—The value of the direction gain of an antennain the direction of its maximum value.

dish—A type of antenna. A parabolic reflector used inmicrowave systems.

dispatch point—A position from which a radio system isused but not a supervision or control point.Dispatch points are not usually listed on a stationradio license.

distortion—Unfaithful reproduction of audio or videosignals due to change occurring in the wave form ofthe original signal, somewhere in the course of itstransmission or reception. The lower the percentageof distortion, the more distortion free the system isand the more intelligible the message.

diversity—A method of radio transmission, or reception,or both, which counteracts the effects of fading bycombining several signals all bearing the sameinformation.

doctor-interrupt—The ability of a physician or hospital-based communicator to interrupt the voice ortelemetry transmission from a radio in the field.

dual-tone multi-frequency (DTMF)—The simultaneousgeneration of two audio tones generally compatibleto AT&T’s standard “touch-tone” frequencies. Usedfor control or signaling purposes. A method ofsending specific pairs of audio tones for each digit,up to a total of 16.

duplex—The operation of transmitting and receivingapparatus at one location in conjunction withassociated transmitting and receiving apparatus atanother location: the process of transmission andreception being simultaneous. The simultaneoustransmission and reception of information. Aduplexed piece of equipment is capable oftransmitting and receiving simultaneously. Duplexsystems generally employ different transmitting andreceiving frequencies.

duplexed operation—The operation of associatedtransmitting and receiving apparatus concurrently asin ordinary telephones without manual switchingbetween talking and listening periods. Forcomparison see simplex operation.

duplexed/multiplexed telemetry unit—A radio devicecapable of simultaneous transmission and receptionand concurrent transmission of both voice and EKGinformation.

duplexer—A device which is used in radio equipment toprovide simultaneous transmit and receivecapabilities on a single antenna.

duplex, half—A system in which communication may bein either direction but only one way at a time.Transmission in one direction at a time over a singlechannel.

EE & M signaling—An arrangement by which signaling

between two points on a radio or carrier path isaccomplished. An M lead is associated with thetransmit (or mouth) while the E lead is associatedwith the receiver (or ear).

EACOM—Emergency and Administrative Communi-cations for hospitals. Trade name for VHF radiosystem operating on standard frequencies with aselective calling system between stations. Thesystem is similar to Motorola CommunicationsHEAR radio system.

effective height—The true electrical height of an antennacorresponding to a “perfect” antenna that willproduce the same field strength. The height of itscenter of radiation above the effective ground level.

effective radiated power(ERP)—The calculated poweroutput from an antenna system which incorporatesall the gains and losses in the antenna system. ERPis calculated as follows (1) convert power output oftransmitter to dB referenced to 1 W(dBw); (2)subtract all transmission line losses including lossesin equipment between the transmitter and antenna(filter, diplexers, circulators, duplexers, etc.)expressed in dB; (3) add the antenna’s power gain(expressed in dB reference to a half-wave dimple);and (4) convert the results into watts.

effective signal radiated—The rating basis for licensingradio transmitters. Equal to the square root of theeffective radiated power times the antenna height infeet above ground level.

EKG display console—A unit of electronic equipmentlocated in a hospital emergency room, or cardiaccare unit, or both, which displays EKG and recordsvoice and data information received from an EMSscene by transmission via radio or telephone path.A demodulation display console.

electrocardiogram(ECG or EKG)—A visual or hard copytrace of a patient’s electrical heartbeat information.

electrode—(1) Either of the two terminals of an electricsource, such as a battery, (2) A conducting elementthrough which electric current enters or leaves anelectrolyte, gas, or vacuum, (3) A conductingelement, usually metallic (such as silver/silverchloride), with a conducting medium or electrolyte(such as sodium chloride and water) attached to apatient to obtain the electrical signals of the heart.

electromagnetic radiation—Radiation associated with aperiodical varying electric and magnetic field and istraveling at the speed o flight, including radiowaves, light waves, X-rays, and gamma radiation.

electromagnetic wave—A wave of electromagneticradiation, characterized by variations of electric andmagnetic fields.

emergency call—A all that requires immediate action.emergency medical dispatcher (EMD)—a trained public

safety telecommunicator with additional trainingand specific emergency medical knowledgeessential for the efficient management of emergencymedical communications.

emergency medical dispatching—The reception andmanagement of requests for emergency medicalassistance.

emergency medical dispatch priority reference system(EMDPRS)—A medically approved reference systemused by a local dispatch agency to dispatch aid to


medical emergencies, which includes: systematizedcaller interrogation questions, systematized pre-arrival instructions, and protocols matching thedispatcher'’ evaluation of injury or illness severitywith vehicle response mode and configuration.

Emergency Medical Service (EMS)—The service utilizedin responding to the perceived individual need forimmediate medical care in order to prevent loss oflife or aggravation of physiological or psychologicalillness or injury.

emergency operations center (EOC)—(1) A secure,protected facility designed and equipped for the useof community officials to manage response of acommunity in time of emergency, (2) Acommunications center designed and operated by acommunity or within a geographic area for acombination of emergency resources, such aspolice, fire and EMS.

emergency resource coordination center (ERCC)—Generally a facility that has the resources and abilityto coordinate all emergency services (police, fire,EMS, etc.) within a given geographic area. ERCCworks in conjunction with a public safety answeringpoint (PSAP) and may be in the same facility orlocation.

enclosure—A housing such as a case, cabinet, cabinetrack or console which is designed to provideprotection and support to equipment.

encoding—The conversion of numerical address codes,such as telephone number or message codes, into aformat of tone or on-off pulses of audio tones fortransmission over a communications system, usuallyfor individual or group addressing, such as forpaging or selective calling.

exchange—A defined area, served by one or moretelephone central offices, within which thetelephone company furnishes service.

exciter—The low level stages of a transmitter whichnormally consists of an oscillator, modulator andmultiplier.

extender board—A printed circuit board that plugs into amodule’s circuit connector at one end and themodule on the other to maintain a circuit so that themodule may be conveniently tested out of aninaccessible position.

Ffacility—A communications facility is anything used or

available for use in the furnishing ofcommunications service.

facsimile—The process by which pictures, images, andother fixed graphic materials are scanned and theinformation converted into electrical signals for localuse or transmission remotely to produce a likenessof the subject copy.

fading—The variation of radio field strength caused by agradual change in the transmission medium.

fade margin—The number of decibels of attenuationwhich can be added to a specified radio frequencypropagation path before the signal-to-noise ratio ofthe channel falls below a specified minimum.

FCC Part 90—The section of the Federal CommunicationsCommissions Rules and Regulations that affectsmost EMS communications.

Federal Communications Commission (FCC)—A Board ofcommissioners appointed by the President under the

Communications Act of 1934 to formulate Rules andRegulations and to authorize use of radiocommunications. The FCC regulates allcommunications in the United States by radio orwireline, including television, telephone, radiofacsimile and cable systems.

feedback—The act of returning a portion of the outputvoltage of a circuit which includes amplification tothe input of that circuit.

feedback, acoustic—The feeding back of sound wavesfrom a loudspeaker to a microphone in the sameaudio system.

field strength—The strength of an electric, magnetic orelectromagnetic field. Electromagnetic (radio) fieldstrength is expressed in microvolts per metre ormillivolts per metre.

fixed service—A service or radio communicationbetween specified fixed points. Fixed station: (1) aradio station which is not mobile; (2) a station whichis permanently installed; (3) a base station in amobile radio system.

fixed relay station—An operational fixed stationestablished from the automatic retransmission ofradio communications received from either one ormore fixed stations or from a combination of fixedand mobile stations and directed to a specifiedlocation.

F-Layers—The upper layers of ionization in theionosphere. The f-1 layer is about 130 miles abovethe earth. The f-2 layer height varies from about 250miles during the day to about 150 miles at night.

float—To operate a storage battery in parallel with acharger and a load at such voltage that the chargersupplies the load current and the battery suppliesonly transient peaks above the normal load.

FM transmitter—A radio transmitter that emits or radiatesa frequency modulated wave.

folded dipole—A receiving or transmitting antennacomposed of two parallel dimples, connected at theends. The connection to the receiver or transmitteris made at the center of one of the poles.

forced disconnect—The capability of the 9-1-1 center todisconnect a 9-1-1 call to avoid caller jamming ofthe incoming phone lines.

four wire operation—Telephone operation in which theinbound audio signal is carried on one pair of wiresand the outbound signal on another pair.

free space loss—The theoretical radiation loss that wouldoccur in transmission if all variable factors weredisregarded. Free space loss depends only on thefrequency and the distance between antennas.

frequency—The number of cycles, repetitions, oroscillations of a periodic process completed during aunit of time. The frequency of waves in theelectromagnetic spectrum (radio waves) isdesignated in hertz (Hz), kilohertz (kHz = 1000Hz). One hertz is equivalent to one cycle persecond.

frequency modulation (FM)—A method of modulating acarrier-frequency signal by causing the frequency tovary above and below the unmodulated value inaccordance with the intelligence signal to betransmitted. The amount of deviation in frequencyabove and below the resting frequency is at eachinstant proportional to the amplitude of theintelligence signal being transmitted. The numberof complete deviations per second above and below


the resting frequency corresponds at each instant tothe frequency of the intelligence signal beingtransmitted.

frequency response—The transmission loss or gain of asystem, measured over the useful bandwidths,compared to the loss or gain at some referencefrequency (generally 1000 Hz).

fresnel zone—The circular zone about the direct pathbetween a transmitter and a receive at such a radiusthat the distance from a point on this circle to thereceiving point has a path length that is somemultiple of a half wave length longer than the directpath.

fringe area—An area or locality at such a distance fromthe transmitter that the signals received are weak.

full-duplex operation—A method of operation of a radiosystem which provides simultaneous two-waycommunications between two points. In EMS radiosystems, provides for mutual interrupt capabilitiesbetween the field technician and the physician ormedical direction at a hospital location.

Ggain, of an antenna—The effectiveness of a directional

antenna in a particular direction, compared against astandard (usually an isotopic antenna). The radio ofstandard antenna power to the directional antennapower that will produce the same field strength inthe desired direction.

generator, standby power—A device which developselectrical voltage from mechanical energy. An a-celectrical power source held in reserve and used tosupply the necessary a-c power when commercialpower fails.

generator, signal—A portable test oscillator which can beadjusted to provide a test signal at some desiredfrequency, voltage, modulation, or waveform.

geographical assignment—The assignment and use ofcommunications channels on a dedicated used basiswithin a given geographic area.

GHz—Gigahertz(billion hertz, 1000 MHz)gin pole—A pole which is used together with ropes and

pulleys as a derrick for lifting heavy loads and forerecting poles or towers.

ground—A reference point. Also a connection,intentional or accidental, between an electricalcircuit and the earth or its equivalent.

ground plan antenna—A type of vertical transmitting orreceiving antenna used primarily for shortwavelength or high band communications. Aground plane antenna consists of a quarter-wavevertical element, and four radial elements spaced90° apart, and mounted on the base of the verticalelement. Antennas of this type are non-directionaland have a low angle of radiation.

ground wire—A conductor leading from the radioequipment to an electrical connection with theground.

guard band—A narrow band of frequencies providedbetween adjacent channels in certain portions of theradio spectrum to prevent interference betweenstations.

guy anchor—The buried weight or mass to which thelower end of a guy wire is attached.

Hhalf-duplex channel—A communication channel

providing duplex operation at one end of thechannel, but not the other. Sometimes, the basestation is operated in the duplex mode, however, inEMS the portable or mobile radio is often operatedin the duplex mode, and the base station at thehospital operated simplex, to permit the medicaldirection physician to interrupt transmissions fromthe field technician. See also Simplex.

half-duplex operation—Generally refers to the ability ofdirecting medical personnel in EMS radio system tointerrupt or ‘break in’ on radio transmissions fromfield personnel to give instructions or ask questions.Sometimes referred to as “physician interrupt”.Requires duplexed communications equipment inthe field.

half-wave dipole antenna—A straight, ungroundedantenna having an electrical length equal to half thewave length of the signal being transmitted orreceived. Mounted vertically, it has a donut-shapedpattern, circular in the horizontal plane.

ham—A term applied to an amateur radio operator, asopposed to business or commercial operators. Aperson that makes amateur radio operation a hobby.

harmful interference—Any emission, radiation, orinduction which endangers the functioning of aradio service or seriously degrades, obstructs, orrepeatedly interrupts a radio communication service.

hand microphone—A microphone designed to be held inthe hand. Sometimes called a “palm” microphone.

handset—A device similar to a telephone handset used inplace of a hand microphone.

hardcopy—A tangible printed copy of a message such asthat obtained from a typewriter.

hardware—The screws, nuts, clamps, anchors,connectors, etc. used in the installation andmaintenance of communications systems.

hardwire—To wire or cable directly between units ofequipment without passing through other media.

harmonic—An integral multiple of a fundamentalfrequency. The third harmonic of 20 Hz is 60 Hz.The fifth harmonic of 40 Hz is 200 Hz.

hash—Noise signal produced by an electrical ormechanical source.

headphone—A device which can be placed on the headto allow individual listening to messages.

HEAR—Hospital Emergency Administrative Radio—Motorola Communications and Electronics tradename for a VHF radio system operating on standardfrequencies with a selective calling system betweenstations. The system is similar to General ElectricMobile Radio Department’s EACOM radio system.

helix—A single layer, spiral wound coil usually having airor foamed polyethylene core.

hetrodyne—(1) pertaining to the production of differencein frequencies (beat frequencies) by the combinationof the two frequencies, (2) to shift an incoming radiosignal to a different frequency, often to a lowerintermediate frequency.

Hetrodyne frequency—The beat frequency, which is thesum or difference between two frequency signals.

hertz(Hz)—International unit of frequency identical toand used instead of the old term cycles. One hertzis equal to one cycle per second.


high band—A portion of the VHF radio frequencyspectrum from 150 to 174 MHz in which two-wayradio operates.

hollerith code—A twelve-level code which defines therelation between an alphanumeric character and thepunched holes in an 80-column data card.

hookswitch—The device on which a handset ormicrophone hangs when not in use. The handsetoperates a switch, or switches, which open theassociated circuits.

hop—(1) The number of reflections from the ionosphereencountered by the radio wave in traveling from thetransmitter to the receiver (2) the number of radiolinks required to span a given path.

hot line—Direct circuit between two or more points forimmediate use without patching or switching. (Seedirect leased land lines) The hot line can employvarious signaling configurations (ringdown, audioamplifier, etc.)

hot standby operation—A method of achieving reliableoperation by energizing two identical equipmentsfed by and to a switchable input and output. Asensing device causes transfer of input and outputcircuits when a failure is indicated.

hum—Audio frequency interference which is at thefrequency of the power supply or its harmonics.

humidity, relative—The ratio of the amount of watervapor the air contains to the maximum amount itcould hold at the same temperature and pressure,expressed in percent.

hybrid—(1) Made up of several different components or amixture of technologies. (2) A circuit required toconvert 4-wire operation to 2 wire, whilemaintaining isolation of the 4-wire circuit.

Iignition noise—Interference produced by sparks or other

ignition discharged in a vehicle.image—One of the two groups of sidebands generated in

the process of modulations, so called because one isthe reverse (mirror image) of the other with respectto operating frequency.

image frequency—In hetrodyne frequency converters, anundesired input frequency which can beat with thelocal oscillator to produce the intermediatefrequency and thus appear in the receiver output.

image rejection—The action of a receiver in suppressingthe image frequency.

impedance—The total resistance that a circuit offers to theflow of alternating current. Impedance is acombination of resistance and reactance. The ohmis used as a unit of impedance measurement.

impedance match—The condition in which theimpedance of one component is the same as thecomponent to which it is connected or attached.

impedance, characteristic—The importance ofcharacteristic impedance lies in the fact that when atransmission line is terminated, as with an antenna,in an impedance matching its own, then all of theenergy or power flowing along the line is radiatedby the antenna. If the impedance of the termination(antenna) is not matched to the transmission line, aportion of the energy will be reflected at themismatch resulting in a lower output from theantenna.

Improved Mobile Telephone Service (IMTS)—A mobileradio telephone offering of a telephone company.

impulse—A surge of electricity having a single polarity.indicator—A device used to inform of a condition or

change in condition.induced—Produced as a result of exposure to a changing

electric or magnetic field.Industrial Radio Service—An FCC-designated radio

service.in-band signaling—The transmission of signaling tones

within the frequency band of the channel.insertion loss—The loss introduced when a device or line

section is interposed between two elements of acircuit.

insulation—Any nonconductive material used to preventthe leakage of electricity from a conductor, such asrubber, glass, mica, etc.

integrated circuit—A complete circuit consisting oftransistors, capacitors, resistors, diodes, etc. which isformed on a single semiconductor substrate.

Integrated Circuit Oscillator Module (ICOM)—Afrequency determining circuit used in GeneralElectric radios containing a crystal oscillator circuitand other circuits used to generate the oscillatorfrequency.

interface—A concept involving the specification of theinterconnection between two equipments orsystems. The specification includes the type,quantity, and function of the interconnection circuitsand the type and form of the signals to beinterchanged via these circuits.

interference—Interference in a signal transmission path iseither extraneous power which tends to interferewith the reception of the desired signals or thedistribution of signals which results in loss of signalor distortion of information.

intermittent—Not continuously present; disappearing andreappearing.

intermittent duty cycle—A duty cycle of 1 minute on 4minutes off, or 20% per electronic industriesassociation (EIA).

intermodulation—The combination of two signals beatingtogether to form a third unusable signal whichinterferes with the reception of the desired signal. Ina radio receiver the method of expressing in dBbelow the desired signal, the receiver’s rejection ofthe unwanted signal to its acceptance of correctsignals.

intrinsically safe—A laboratory (UL) rating for equipmentconsidered approved to operate in areas in whichhazardous concentrations of flammable gases exist.

inverter—(1) Any of several devices used to convertdirect current to alternating current (2) a singleinput, single output device which changes thepolarity of (inverts) a signal when passing it frominput to output. A negative signal at the inputproduces a positive signal at the output and viceversa. A differential EKG amplifier has a normaland an inverting input.

ionosphere—The upper portion of the earth’s atmospherebeginning at about 50 miles above the surface of theearth’ the cause of radio signals being bent, andreturned to earth.

isolator—A passive RF device which permits transmissionin only one direction, absorbing energy in theopposite direction.


Jjack—A connecting device ordinarily used to make

electrical contact with mating contacts of a plug.jacket—The outer covering on an insulated wire or cable.jamming—The deliberate radiation, re-radiation or

reflection of electromagnetic energy with the objectof impairing the use of electronic devices,equipment or systems.

jumper—A short length of conductor used to bridgeelectrical connections.

junction box—A metal or other container into whichwires or cables are led and connected.

Kkey—A push-to-operate switch used for operating a

transmitting circuit in a radio systemkey telephone equipment—An instrument that has the

capability of multiple line terminations. Each line isaccessed by depressing an association button (key).

keypunch—A machine controlled by a typewriter likekeyboard which enables an operator to punch holesin predescribed places in a hollerith code.

kilo—A prefix meaning one thousand.kbps—Thousands of bits per second.kilohertz(kHz)—Equal to 1000 cycles per second.

Replaces the term kilocycle.klystron—An electron tube in which the electrons are

periodically bunched by electric fields. Used as anRF oscillator for microwave equipment.

knockout—A metal disc punched in the side of a metalterminal junction box or cabinet which can bepunched out to allow entry of a cable or conduit.

Lland line—A generic term which refers to the public-

switched telephone system.lag—The difference in phase angle expressed in electrical

degrees between the voltage and current whichproduced it.

land-mobile—An abbreviation for land to mobilecommunications such as between base stations andmobile radios or from mobile radio to mobile radio.

Land Mobile Radio Service—A mobile radio servicedefined by the Federal CommunicationsCommission-FCC Rules and Regulations Part 90.

LATA—Local access and transport area boundaries fortelephone companies. The geographic area withinwhich the local telephone company provides localand long distance service.

Law Enforcement Assistance Administration (LEAA)—Anadministration under the United States Departmentof Justice established by the Omnibus Crime Controland Safe Streets Act of 1968, restructured by theJustice Improvement Act of 1979 and abolished twoyears later.

leased line—A pair of wires or a circuit, usually leased orrented from a telephone company, designed forexclusive use between two fixed points for variouscommunication control functions.

life cycle—A test performed on a material device todetermine the length of time before failure.

line—A transmission lien or power line. A system of oneor more wires.

linear—Describing a device in which the signal outputvoltage is directly proportional to the signal inputvoltage. A straight line relationship.

line, balanced—A two-wire line which has identicalimpedance from each wire.

line equalizer—A connection in series with a telephoneline that will alter the frequency responsecharacteristics of the line.

line, four-wire—A two-way transmission circuit usingseparate paths for transmit and receive functions.

line,lossy—A transmission line, usually a coaxial cable,which is deigned to have very high transmission lossper unit length Used in tunnels, underground orbuildings for radio communications systems.

line of sight—An unobstructed path between two points.Radio waves at those frequencies where signalstravel in a straight line and are not reflected by theionosphere.

line of sight distance—The straight-line distance from aradio station antenna to horizon. This represents thenormal transmitting range of FM transmittingstations.

link—The portion of a radio relay system betweenadjacent radio stations.

load—(1) A device that receives power from atransmission system (2)The amount of electric powerdrawn by an electric or electronic device.

load, dummy—A device which can dissipate energy (intoheat) without radiating it.

loading, antenna—Insertion of reactance in an antennacircuit to improve its transmission characteristic in agiven frequency band.

loading, ice—The stress imposed on an antenna orantenna structure caused by ice forming on itsmembers.

loading, wind—The stress imposed on an antenna orantenna structure caused by wind.

lobe—One of the three-dimensional petals representingthe radiation or reception efficiency of a directionalantenna.

local government radio service—A service of radiocommunication defined by the FCC essential toofficial activities of states, possessions, andterritories, including counties, towns, cities, andsimilar governmental subdivisions.

local service area—That area that can be called on thetelephone without incurring multimessage units or atoll charge.

log—A list of radio stations showing frequency, location,power, and other data. Also a communicationrecord for a station showing calls made, time, dateand other data. A detailed record.

loop—(1) A short transmission line that connects asubscriber to a switchboard (2) A closed path inwhich a signal may circulate. This path may bewithin a piece of equipment, such as a repeater orcarrier terminal, or may be a complete carriercircuit.

loop resistance—The resistance presented to the signalingportion of the terminating set by the wireline whenthe far end of the wireline is short circuited.

loss—A decrease in power suffered by a signal as it istransmitted from one point to another, usuallyexpressed in decibels. Energy dissipated withoutaccomplishing useful work.


loss, free space—The theoretical transmission lossbetween two radio antennas dependent only upondistance and frequency.

loss, path—The theoretical transmission loss between tworadio antennas dependent only upon distance andfrequency.

loss, path—The reduction or attenuation of signal strengththat occurs between the transmitted strength and thereceived signal strength.

low band—A section of the VHF radio frequencyspectrum from 25 to 50 MHz in which mobile radioequipment is licensed to operate.

low loss—Describing circuits and transmission line inwhich little energy is lost from the input to theoutput.

lower sideband—The lower of two frequencies or of twogroups of frequencies produced by a modulationprocess.

lug, spade—A connector which has an open end to slipunder a terminating screw.

Mmarginal—Operating at the borderline of permissible

limits.matrix—An array of horizontal and vertical input or

output leads with cross points at the intersections,used as a means of switching from any input to anyoutput.

mean—The arithmetic middle point of a range of values,obtained by adding the highest and lowest valuesand dividing by two.

median—The point below which there are as manyinstances as there are above.

medical communications control console—Aninstallation of communications control equipment,usually located at a hospital, which provides forcontrol of the transmitting and receiving equipmentnecessary for the medical communications.

microwave—A term applied to radio waves in thefrequency range of 1,000 MHz and upward.Microwave radio generally performs the samefunctions as telephone cables, and may be used forradio remote control purposes.

mobile—Term used to describe equipment designed forvehicular installation.

mobile relay station—A fixed station established for theautomatic re-transmission of mobile service radiocommunications which originate on the transmittingfrequency of the mobile stations and which areretransmitted on the receiving frequency of themobile stations.

mobile repeater station—A mobile station in the mobileservice authorized to retransmit automatically on amobile service frequency communicationsoriginated by handheld or portable units or by othermobile or base stations directed to such hand-carried units.

mobile service—A service of radio communicationsbetween mobile and land stations, or betweenmobile stations.

mobile station—A two-way radio station in the mobileservice intended to be used while in motion orduring halts at unspecified points.

mobile telephone service (MTS)—Telephone servicebetween a fixed mobile radio base station andseveral vehicles equipped with mobile radios.

mobile transmitter—A radio transmitter designed forinstallation in a vehicle, vessel, or aircraft andnormally operated while in motion.

mobile unit—A two-way radio equipped vehicle orperson. Also sometimes the two-way radio itself,when associated with a vehicle or person.

modem—Contraction of modulator-demodulator.modular—A construction technique incorporating the use

of standard size units for interchangeability.modulate—To vary the amplitude (AM), frequency (FM),

or phase of a high frequency wave or carrier in stepwith amplitude variations of another wave (themodulating wave). The carrier is usually a sinewave while the modulating wave is often a complexvoice or EKG signal.

modulator—The electronic circuit that combines themodulating wave with the carrier wave. In radiotransmitters the final audio-frequency stage whichmates the audio signal with the carrier signal. InEKG telemetry, the circuit that combines theamplified EKG signal with the subcarrier (audio)signal for transmission by radio or telephone.

multi-channel system—A radio system which uses morethan one radio channel. Also known as a multi-frequency system.

multicoupler, receiver—A device which permits severalradio receivers to use the same antenna. Usually abroadband amplifier with several output ports.

multi-frequency operation—Employing radio equipmentcapable of operation on two or more frequencies.

multijurisdictional system—A system covering more thanone political boundary or agency.

multipath—The propagation phenomenon which resultsin signals reaching a radio receiving antenna by twoor more paths usually resulting in a degradation ofthe original signal.

multiplex—Transmitting two or more signals over thesame medium. In EKG telemetry equipment, theability to transmit electrocardiograph(EKG) signalsand voice signals concurrently over the sametransmitter.

multiplex, frequency division—A multiplex system inwhich the total transmission bandwidth is dividedinto narrower bands each used for a single separatechannel.

multiplex, time division—A method of multiplexing inwhich the total frequency spectrum available is usedby each channel, but only for part of the time. Asharing of transmission ability, first by oneparameter, then by another.

multi-tone—A method of signaling that involves tow ormore tone signals produced simultaneously orsequentially.

mute—To silence or reduce sound level.

Nnetting—The process of adjusting a system’s transmitters

and receivers to the same operating frequencies.net loss—The algebraic sum of the gains and losses

between two terminals of a circuit.network—An orderly arrangement of stations

interconnected through communications channels inorder to form a coordinated entity.

nine-one-one(9-1-1)—A three-digit emergency telephonenumber accepted and promulgated by the telephoneindustry as the nationwide emergency number.


Nxx—The first three digits of a local telephone numberthat uniquely identifies that central office switchinglocation within its area code number for nationwidelong distance call routing.

noise—Interference characterized by undesirable randomvoltages cause by an internal circuit defect or fromsome external source. Any extraneous signaltending to interfere with the proper and easyperception of those signals which are intended to bereceived.

noise blanker—A device used in mobile radioapplications which senses the presence of undesirednoise on the desired channel and causes the desiredsignal to be interrupted for the time period that theundesired noise signal is present. The time period iscontrolled and measured in milliseconds so that theinterruption of the desired signal is not audible.

noise level—Volume of noise usually expressed indecibels.

noise limiter—A circuit that cuts off the noise peaks thatare stronger than the highest peak of the desiredsignal being received.

nomograph—A chart having three or more scales acrosswhich a straightedge can be placed to provide agraphical solution for a particular problem. Inmobile radio, nomographs may be used todetermine frequency spread, estimated radio range,antenna height, etc.

Ooctave—The interval between two frequencies having a

ratio of two to one.ohm—An electrical unit of resistance.ohm’s law—The current in an electric circuit is directly

proportional to the electromotive force in the circuit.In the form E=I*R, where E is the electromotiveforce (voltage), I is the current (amperage), and R isthe resistance of the circuit (ohms).

omnidirectional—Equally effective in all directions.open—A break in circuit continuityoutage—A disruption of communications from any cause,

whether planned or accidental.out-of-band signaling—Transmission of signals by

frequencies outside of the voice band.overload—A load greater than a device is designed to

handle.

Ppaging—A one-way communications service from a base

station to mobile or fixed receivers that providesignaling or information transfer by such means astone, tone-voice, tactile, optical readout, etc.

pair—Two wires of a signal circuit generally applied totelephone wherein one wire is designated “tip” andthe second wire “ring”.

passive—A device which does not contribute energy tothe signal it passes.

passive repeater—A device intentionally interposed in amicrowave transmission path to redirect or reflectenergy.

patch—A means of connecting one system to another. Apatch may be between radio systems, or radio totelephone, as in a radio/phone patch.

path, signal—The route by which intelligence isconveyed from transmitter to receiver or through acircuit.

personal radio—A small portable radio intended to becarried by hand or on the person of the user.

PERT—Program Evaluation and Review Technique. Amanagement tool for comparing actual withscheduled program progress.

phase—The position at any instant which the periodicwave occupies in its cycle of 360°

phone patch—An interconnection between radio andtelephone communications circuits which permitsdirect voice interchange between telephone linesand radio system.

pigtail—A splice made by twisting together the baredends of two conductors.

plug-in—Describing any device having terminals so it canbe connected by simply pushing it into a suitablesocket or connector.

portable—An easily transportable radio.primary power—A reliable source of electrical power

normally serving as the principle source of energy toequipment, such as the commercial 120 volt a-cpower main.

private automatic branch exchange-(PBX)—A telephoneswitchboard with many stations not individuallyidentifiable to the telephone company’s switchingnetwork requiring an operator.

private line(PL)—Motorola’s trademarked name forcontinuous tone controlled squelch system, CTCSS.

propagation, electromagnetic—The travel ofelectromagnetic waves through a medium, or thetravel of a sudden electric disturbance along atransmission line. Also called wave propagation.

protect—To equip with devices for safeguarding fromdamage by excessive voltages, current, or physicalabuse.

public safety agency—A functional division of a publicagency which provides fire fighting, police,ambulance, emergency medical, or other emergencyservices.

public safety answering point (PSAP)—The initialanswering location of a 9-1-1 call and other calls forassistance.

public safety telecommunicator—An individual trainedto communicate by electronic means with personsseeking emergency assistance and with agencies andindividuals providing such assistance.

pull box—A box with a removable cover installed in aconduit run to facilitate pulling wire or cable intothe conduit.

pulse—A signal of short duration.pulsed tone—A system of selective signaling using a

keyed on-off tone signal.push-to-talk or press-to-talk(PTT)—In radio or telephone

systems, that method of communication over aspeech circuit in which transmission occurs fromonly one station at a time, the talker being requiredto keep a switch operated while he is talking. Thekeying button used to operate a radiotelephonetransmitter.

Qquarter-wave antenna--An antenna electrically equal to

one-fourth of the wavelength of the signal tobe transmitted or receive.

quartz--An element consisting of pure silicon dioxide.The original piezoelectric material widely usedto control the frequency of oscillators.


quartz crystal--A thin square or rectangular slice ofquartz which will vibrate at a frequencydetermined by its thickness.

quiet channel--The RCA Corporation’s trademarked namefor continuous tone controlled squelch system(CTCSS).

quieting--Reduction of system noise.quick-call--Motorola communications Company trade-

marked name for a system of selective calling,normally using two pairs of two tones each insequence. Quick Call II uses a pair ofsequential tones similar to General Electric’sType 99 tone system.

Rrack mounting—A method of mounting equipment in

which metal panels supporting the equipment areattached to pre-drilled steel channel rails or racks.The dimensions of the panels, the spacing of therails and the size of the mounting screws arestandardized.

rack unit--In mobile radio generally a rack mounting 19in. between rails and a height of 1.75 in. per unit.

radio--The transmission and reception of signals bymeans of electromagnetic waves without aconnecting wire.

radio-frequency power--The power associated with anysignal consisting of electromagnetic radiation whichis used for telecommunications.

radio interference--Undesired disturbance of radioreception. Man-made interference is generated byelectric devices, with the resulting interferencesignals either being radiated through space aselectromagnetic waves or traveling over power linesor other conducting media. Radio interference isalso due to natural sources such as atmosphericphenomena, such as lightning. Radio transmittersthemselves may additionally interfere with eachother.

radio network--A number of radio stations, fixed andmobile, in a given geographical area which arejointly administered or which communicate witheach other by sharing the same radio channel orchannels.

radio common carrier (RCC)--An enterprise that islicensed by the FCC and the Public UtilitiesCommission to provide radio communicationsservice to the public.

radio receiver--An instrument which amplifies radiofrequency signals, separates the intelligence signalsfrom the rf carrier, amplifies the intelligence signaladditionally, and converts the intelligence signal toits original form.

radio relay system (radio relay)--A point-to-point radiotransmission system in which the signals arereceived and retransmitted by one or moreintermediate radio stations.

radio transmitter--A radio-frequency power source whichgenerates radio waves for transmission throughspace.

radome—A dome shaped cover for a parabolic antennawhich protects the antenna from the elements andtheir attenuating effects.

range--Distance over which a radio signal can betransmitted for effective reception or the distance atwhich a usable signal can be received.

receiver--An electronic device used to detect and amplifytransmitted radio signals.

receiver, paging--A small, light, pocket sized receiverused for alerting individuals when they are awayfrom their normal communication instruments.

referral methods--The calling party to a public safetyanswering point is referred to a secondary telephonenumber.

refraction--The change of direction experienced by awave of any form of radiated energy when passingfrom one medium to another having a differentdielectric constant or index of refraction.

regional EMS system--An emergency medical servicearea (trade, catchment, market, patient flow,geographic or governmental) that providesessentially all of the definitive emergency medicalcare for all emergencies and for the most critically illand injured patients within the area.

relay--Transmission forwarded through an intermediatestation.

relay station--Radio stations that rebroadcast signals theinstant they are received, so that the signal can bepassed on to another station outside the range ofthe originating transmitter.

reliability--The ability of an item to perform a requiredfunction under stated conditions for a stated periodof time.

remote base station--A base station located away fromthe operating console, to take advantage ofimproved coverage offered by a better geographicallocation.

remote control--The operation of a device from adistance either electrically or by radio waves.

remote control equipment--The apparatus used forperforming monitoring, controlling, supervisorycontrol, or a combination of these functions at adistance by electrical means.

repeater--A combination of apparatus for receiving eitherone-way or two-way communication signals and

delivering corresponding signals which are eitheramplified or reshaped or both.

repeater station--An operational fixed station establishedfor the automatic re-transmission of radiocommunications received from any station in themobile service.

repeater station, re-modulating—A microwave repeaterstation in which the signal is demodulated to theoriginal baseband frequencies and re-injected ontothe modulator for transmission to the distant station.

resource management center--A center responsible forthe allocation of those resources essential to themost effective and efficient resolution, ormanagement or both, of the immediate problem. Inmost communities these resources include police,fire and emergency medical services. The resourcemanagement center is most effective when itsresponsibilities encompass the whole of publicsafety response.

ringback--In a public safety answering center, permits theanswering point to ring the hung-up telephone on aheld circuit. The feature is useful when calling aparty has failed to provide all necessary informationto the answering point before hanging up.

ringdown--A type of signaling employed in manualoperation telephone (as compared to dial)which utilizes a continuos or pulsing a-c signaltransmitted over the line.


Sschematic diagram--A diagram or drawing which shows

electrical connections of a radio or other electricaldevice by means of symbols which are used torepresent the components.

search lock monitor—A receiving channel scanningscheme which lock the receiver on the first channelreceived.

selective call--A system for alerting individual or groupsof stations by means of coded signals.

selectivity--The ability to select one particular signal fromother signals at nearby frequencies. Thisspecification is important in urban areas where radiospectrum congestion exists. The more negative thedB rating, the better the specification.

selective routing--A routing of telephone call to terminateat a PSAP determined by the location of the callingtelephone. This is accomplished by using acomputer to process the calling telephone number.

sensitivity--The characteristic of a radio receiver whichdetermines the minimum input signal strengthrequired for a given signal output. In FM, sensitivityis the signal level required to produce e a given ratioof signal to noise. The more sensitive a receiver is,the weaker the signal it can receive.

service channel--In a microwave system, a voice channelfused for maintenance and fault location. Also calledorder wire.

service life--The life expectancy of equipment undernormal conditions of use.

side tone--The signal that reaches a telephone receiverfrom the transmitter of the same set by way of alocal path within the set.

signal--The form of a radio wave in relation to thefrequency serving to convey intelligence incommunication.

signal-to-noise ratio--The ratio of the intensity of thedesired signal to that of the undesired noise signal,usually expressed in decibels.

signal strength--A measure of the field intensity caused bya radio transmitter at a particular location within itsoperating range. Usually expressed as microvolts, ormillivolts of signal.

simplex--1)- single frequency operation whereby all basestations and mobiles operate on one commonfrequency, (2) operation on two differentfrequencies in a system that can communicate intwo directions, but not simultaneously, such aswhen a base station and a mobile radio operate onreversed pairs of frequencies without duplexing.

simplex channel--a communication channel providingtransmission in one direction only at any given time.For comparison see duplex channel.

simplex operation--A method of radio operation in whichcommunication between two stations takes place inonly one direction at a time. This includes ordinarytransmit-receive operation, press-to-talk operation,voice-operated transmit, and other forms of manualor automatic switching from transmit to receive.Also called simplex.

SINAD--The ratio of signal plus noise plus distortion tothe noise plus distortion; expressed in decibels. AnEIA standard method of measuring receiversensitivity. Basically a measure of RF signal strengththat will result in a readable signal.

siren--An acoustical or electromechanical device used asa warning signal on emergency vehicles.

solid state--Denoting the use of semiconductors instead ofvacuum tubes or relays.

Special Emergency Radio Service (SERS)--That portion ofradio communications frequency resourcesauthorized by the FCC for use in the alleviation ofemergency situations endangering life or property.See FCC Part 90.

spectrum--A continuous range of frequencies arranged inorder of wavelength or frequency within whichwaves have some common characteristics, such asaudio spectrum, radio spectrum, etc. The entirerange of electromagnetic radiation extending fromthe longest known radio waves to the shortestknown cosmic rays.

spurious response-The response of a radio receiver to anundesired frequency.

squelch--A circuit function that acts to suppress the audiooutput of a receiver when noise power exceeding apredetermined level is present.

squelch, carrier--A squelch system that responds to thepresence of an RF carrier signal.

squelch circuit--A circuit that reduces or lowers the noisethat would otherwise be heard in a radio receiverbetween transmissions.

stability, frequency--The ability of a radio transmitter tomaintain any predetermined frequency, such as itsassigned frequency. Measured in percent of thecarrier. The lower the percentage the better thestability.

standing wave ratio (SWR)--A measure of the amount oflost transmitting power due to impedancedifferences between the transmission line and theantenna. The ratio of reflected to incident waves thatexists at some particular point on a transmissionline.

statewide EMS system--A network of EMS systems,integrated and coordinated at the state level.

strip chart recorder--An electromechanical device usedto make paperchart recordings of EKG information.Usually it uses a heat-sensitive paper and a heatedstylus.

subcarrier--A frequency sensitive device used to generatea modulated wave which in turn is applied as amodulating wave to modulate another carrier. ForEMS telemetry the subcarrier frequency is 1400 Hz.

supergroup--In microwave systems groups of 60 channelseach, occupying a particular range of frequencies.

switched network—A complex of diversified channelsand equipment that automatically routescommunications between the calling and calledperson or data equipment. The public telephonesystem.

synchronization—The process of making the carrier at thereceiving end of a line or system match thefrequency of the carrier at the transmitting end.

synthesizer, frequency—A highly precise crystal oscillatorwith frequency dividers used to provide the preciseradio frequency. A typical synthesizer can be set tosmall frequency increments and have an accurateoutput at the desired output frequency.

system—A combination of two or more stations in such away as to provide communications.


Ttandem trunking—An arrangement where a telephone-

line connection has one or more intermediate pointsthat are required or permitted usually on acontrolled dial pulse basis before reaching the finaldestination (called) party.

tariff—A document filed by a communications companywith Public Utilities Commission which lists theservices offered the public and schedule of rates andcharges.

tarnish—A discoloration or stain on the surface of metalcaused by exposure to chemicals or the atmosphere.To dull or destroy the luster of metal.

tee-A three-way connection in the shape of the letter t.telecommunications—All forms of electrical transmission

of intelligence including: telegraph, telephone,radio, and television. Pertaining to the art andscience of communication by these methods.

telemetry—The sensing and measuring of information atsome remote location and transmitting the data to aconvenient location to be read and recorded.

telpak—An acronym for “telephone package”, a scheduleof bulk discount rates for multiple private linetelephone services such as AT&T long-lines series500 tariff offering.

telephone line—A telephone lien from a telephonecompany central office that is connected to key ornon-key telephone equipment.

teletypewriter—An electromechanical device, similar to atypewriter, such that messages typed on thekeyboard of the transmitter unit are converted intoelectrical signals, which when conveyed to thereceiver unit, are printed on paper.

ten signals—A series of coded messages designed toreduce air transmission time and confusion in busymobile radio systems.

thermal noise—Very small noise voltages that are presentin all conductors, caused by the thermal agitation ofcharged particles within the conductor.

third harmonic—A frequency wave having three timesthe fundamental frequency value.

threshold—In an FM receiver, the point at which thepeaks of the incoming RF signal exactly equal thepeaks of the internally generated thermal noisepower or the point above which increasing the inputsignal strength provides only a dB for dBimprovement in the output signal-to-noise ration.

tip—The ball-shaped contact on the cord (tip) of a plug.One of a pair of telephone wires (the other of whichis called the ring).

tone—An audio or carrier of controlled amplitude andfrequency used in a selective signaling system or forequipment control purposes.

tone code—A specified character of transmitted tonesignals required to effect a particular selection orfunction.

tone coded squelch—A system whereby a superimposedtone is transmitted with the radio carrier to protectagainst nuisance type interference.

tone, Type 90—General Electric’s name for a system ofsingle tone signaling. The tones are generallybetween 1000 and 2400 Hz in two bands.

tone, Type 99—General Electric’s name for its two-tonesequential selective signaling system. Sometimescalled Sel-Call. The tones are generally between520 and 953 Hz.

topographic map—An accurately scaled map havingcontour lines which show the elevation above sealevel. Used in preparing profiles of radiopropagation paths.

touch pad—A method of signaling or encoding anddecoding address codes by the use of a simplenumerical push-button keyboard.

Touchtone—A Bell System trademark used to describetheir method of signaling and use of dual tone multi-frequency (DTMF) tones.

tower, antenna—A tall antenna support structure used tosupport one or more antennas or when an antennamust be mounted high above the ground or othersupport formation such as a building.

traffic—Used for messages handling by a radiocommunications system.

transceiver—The combination of radio transmitting andreceiving equipment in a common housing, usuallyfor portable or mobile use, and employing commoncircuit components for both transmitting andreceiving.

transformer—An electrical device for voltage currenttransformation, or impedance matching or both.

transfer method—The PSAP interrogator determines theproper responding agency and connects the user tothat agency. To perform the necessary dispatchingin accordance with prearranged plans withcooperating agencies.

transient—A rapid, sometimes violent, fluctuation ofvoltage or current in a circuit usually of shortduration caused by switching or changes in load.

transmitter—Apparatus for the production andmodulation of radio frequency energy for thepurpose of radio communication.

transmission line—A waveguide, coaxial line, or othersystem of conductors used to transfer signal energyefficiently from one location to another. Incommunications systems, the coaxial line betweenthe base station and the antenna.

trunk—A circuit used for connecting a subscriber in acentral office to all other services in/out of theswitching equipment.

trunk line—A telephone line that terminates at aswitchboard rather than a telephone.

TSPS—An electronic operating position system wherebyoperator-handled traffic is routed to its finaldestination via a central switching machine.

turret—A section of communications control console,containing switches, controls, meters, etc.

two-way radio—A radio that is able to transmit and toreceive.

two-wire operation—Uses a single pair (two wires) forboth transmitting and receiving.

UUltra High Frequency (UHF)—Frequencies between 300

and 3000 MHz.ultrasonic—Describing frequencies higher than those

which are audible. Generally above 20000 Hz.unbalanced line—A transmission line in which the

voltages on the two conductors are unequal.Underwriters Laboratories, Inc.—A laboratory sponsored

by the National board of Fire Underwriters whichexamines and tests devices, material and equipmentwhose action may affect casualty, fire, and lifehazard.


unmodulated—Without modulation; the RF carrier signalalone as it exists during pauses in conversations.

upper sideband—The higher of two frequencies or groupsof frequencies produced by a modulation process.

utility—A power, gas, or water service available to thepublic.

VVan Allen belts—Radiation belts that surround the earth,

consisting of electrons and protons at high energylevels.

varactor—A semiconductor diode used as a variablecapacitor. Used as a harmonic generator, frequencymultiplier, and amplifier.

vehicular repeater station—A mobile station in themobile services authorized to retransmitautomatically on a mobile service frequency,communications originated by hand carried portableunits or by other mobile or base stations directed tosuch hand-carried units.

Versatone—General Electric company trade name for asolid state tuned tone determining element.

vertical antenna—A vertical steel tower, rod or shaft usedas an antenna.

Very High Frequency (VHF)—Frequency between 30 and300 MHz.

Vibrasponder—Motorola Communications companytrade name for a tone determining vibrating reedelement.

voice grade—A communications circuit which isnominally 300 to 3000 Hz.

voltage standing wave ratio (VSWR)—The ratio of themaximum voltage to the minimum voltage along atransmission line. It is the measure of the mismatchbetween the load and the line.

volume control—A potentiometer voltage divider used toadjust the loudness of an audio circuit.

volume unit (VU)—A measure of the magnitude of soundfrom an electrical wave. Measured in decibels.

voting—Automatic selection of remote radio receiver. Alincoming signals are compared for signal strengthand the first signal found that meets or exceeds apreset level is selected and sent to the audioamplifier.

Wwatt—The unit of power.wattmeter—A meter to indicate the rate at which

electrical energy is being used or produced.wave—A propagated periodic disturbance such as a

radio, light or sound wave.waveguide—A transmission line comprising a hollow

conducting tube within which electromagneticwaves may be propagated. Generally used inmicrowave communications systems.

wavelength—The distance measured along the directionof propagation between tow points that are in phaseon adjacent waves. A wavelength is the distancetraveled by a wave in the time of one cycle.Electromagnetic waves included both light and radiowaves and travel in space at approximately300,000,000 m/s. To determine the exact length ofa wave, divide 300,000,000 m by the frequency inhertz.

wave, radio—An electro-magnetic wave which travelsthrough space at the speed of light.

wave, refracted—A radio wave that is bent (refracted) asit travels into a second medium of propagation, suchas from the atmosphere to the ionized layers of thestratosphere.

weatherproof—So constructed or protected that exposureto the weather elements will not prevent properoperation.

weathertight—So constructed that exposure to a drivenrain will not result in the entrance of water.

wire—A single metallic conductor.

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EMS Communications Resource Manual - The Abaris Group

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