March 20161Project 25 Technology Interest Group
International Wireless and Communications ExpoCollege of Technology Las Vegas, Nevada
March 22, 2016
P25 User’s Perspective, Interoperability, and Customer Applications
Update for 2016
Presented by:PTIG - The Project 25 Technology Interest Group
www.project25.org – Booth 764
March 20162Project 25 Technology Interest Group
Program Participants• Moderator
– Del Smith, PTIG Chairman, Operations Manager, ALASKA LAND MOBILE RADIO
• Panelists – Steve Nichols, Director, PROJECT 25 TECHNOLOGY INTEREST GROUP
– Chris Essid, Deputy Director, DHS, OEC
– Cindy Cast, Radio Systems Manager, MIAMI DADE COUNTY FL
– Robert Schwent, Electronic Services Division Commander, SWIC, STATE OF WASHINGTON
– James Downes, Chairman, FEDERAL PARTNERSHIP FOR INTEROPERABLE COMMUNICATIONS (FPIC) Chairman, P25 Steering Committee
– George Crouch, Public Safety Communications and Emergency Operations Administrator, SWIC, STATE OF SOUTH CAROLINA
– Del Smith, Operations Manager, ALASKA LAND MOBILE RADIO
March 20163Project 25 Technology Interest Group
• A look at P25 in the field and user supported experiences.
• How and Why P25 is Useful to So Many Public Safety Users.
• How is P25 Being Deployed for Interoperability.
• Challenge the Myths, See the Realities of P25 Pros and Cons.
• The Reality of Multiple Vendor Interoperability with P25.
• Get Acquainted with System Level Interoperability
– P25 is about More than Multiple Choice Mobiles & Portables.
• Get Acquainted with PTIG Resources for your Information.
Take Away Topics To Look For
March 20164Project 25 Technology Interest Group
PTIG?What we Do, and Who we Are.
March 20165Project 25 Technology Interest Group
What do we do:
– Provide a forum for users and manufacturers
– Manage education and training on Project 25
– Create and distribute Project 25 information
– Support the TIA standards process
– Offer Users access to the standards process without the rigor of TIA membership
– Maintain a “neutral ground” among the competing manufacturers and providers
And…
– Present Classroom Training and Panels such as THIS SESSION.
Project 25 Technology Interest Group
March 20166Project 25 Technology Interest Group
Project 25 Technology Interest Group
Who we are:
– Supporters of Project 25 technology, nurturing Project 25’s adoption, growth, and expansion
– A venue fostering an atmosphere encouraging Users to contribute to and benefit from a close interaction with the vendor community driving the on-going development of the Project 25 Standards
Set your browser to www.project25.org
March 20167Project 25 Technology Interest Group
Project 25 Technology Interest Group: Founding Member
Project 25 Technology Interest Group: Sustaining Members
March 20168Project 25 Technology Interest Group
Project 25 Technology Interest Group: Commercial Members
NICATION
March 20169Project 25 Technology Interest Group
Console
power audio Channel A Channel B
Available in VHF, UHF, 700, 800, and 900 MHz
15 fixed station/repeater suppliers
13 Subscriber suppliers
12 console suppliers
15 network providers
4 test equipment suppliers
7 consultant services
35 Vendors for Project 25 Equipment and Services
March 201610Project 25 Technology Interest Group
Project 25 Products and Services Available
PTIG Member Organizations
www.Project25.org Fix
ed
Sta
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s &
Rep
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Mob
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&
Port
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Rad
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Pag
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Veh
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Rep
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Con
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Soft
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Tes
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Inte
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Con
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AECOM
AIRBUS DS COMMS
AVTEC
BAI (FORMERLY AIRWAVE)
CATALYST
CISCO
COBHAM
CODAN RADIO (FORMERLY DANIELS)
DVA CONSULTING
DVSI
EF JOHNSON
ETHERSTACK
FEDERAL ENGINEERING, INC
5 x 9 COMMUNICATIONS
FUTURECOM SYSTEMS
GENESIS GROUP
HARRIS CORPORATION
ICOM AMERICA
IDA CORPORATION
JVC KENWOOD
MIDLAND RADIO
MOTOROLA SOLUTIONS
PANTEL INTERNATIONAL
POWERTRUNK (TELTRONIC)
RELM WIRELESS
SIMOCO
SPECTRA ENGINEERING
STANDARD COMM PTY LTD - GME
TAIT COMMUNICATIONS
TECHNISONICS
TELEX RADIO DISPATCH (BOSCH)
TIMCO ENGINEERING
UNICATIONS USA
VERTEX STANDARD
ZETRON
35 15 13 1 4 12 15 6 4 17 7
March 201611Project 25 Technology Interest Group
WWW.Project25.org
March 201612Project 25 Technology Interest Group
Project 25 Technology Interest Group (PTIG)
New Documents available at www.Project25.org
• P25 Frequently Asked QuestionsWritten to officer, firefighter (non technologist) level
• P25 Updated Capability Guide Added Infrastructure interfaces and links to Statement of Requirements. Remains the best tool for managing P25 features and capabilities for system planning and RFP development
• P25 Standards Update SummarySummary of the latest TIA TR-8 P25 Standards Meetings with user benefits defined
• P25 Steering Committee Approved List of StandardsUpdated from the most recent P25 Standards meeting
• P25 Feature Translator link to NPSTC PAM tool
March 201613Project 25 Technology Interest Group
Project 25 Technology Interest Group (PTIG)
New Documents available at www.Project25.org
• New White paper: P25 Automatic Roaming A detailed description of Automatic and Manual Roaming capability for Project 25 systems.
• P25 System of the Month Each month a new Project 25 system is featured describing the system, coverage, agencies served, interoperability achieved and other unique details of this application of Project 25 technology.
• New White Paper: Is Project 25 Public Safety Grade?Project 25 has been defined since it’s inception by requirements from the Public Safety User Community. The result is a Suite ofStandards with well defined features, capabilities, and interoperable interfaces applied in over 700 Public Safety Systems across the US today.
Projects Underway 2016;
• New entries for International P25 systems and USA Conventional will be added to the P25 Master System listing. This resource will be expanded to include P25 systems beyond the systems currently listed for the USA, Australia, Canada, NewZealand, and the UK.
March 201614Project 25 Technology Interest Group
P25 LMR radio systems are today enabling interoperability between agencies across local, regional, state and national networks; offering Public Safety agencies competition and options for cost effective sourcing.
Public Safety practitioners have been doing this with the P25 Suite of Standards for close to 25 years and there are over 700+ P25 systems in operation in the USA, providing life-saving communications for day to day operations as well as emergency situations.
Why Project 25…..
March 201615Project 25 Technology Interest Group
The diverse user requirements of Public Safety/Public Service require a well defined Suite of Standards with both over the air and wireline interfaces for interoperability between agencies and multiple equipment manufacturers.
• Multiple Air Interfaces: P25 offers interoperable FDMA and TDMA air protocols that are backward compatible to legacy analog technology
• Multiple Wireline Interfaces: P25 has well defined wireline interfaces to link P25 Systems (ISSI), Consoles (CSSI) and RF sub systems (FSI)
• Frequency Agnostic Operation in Multiple Bands: VHF 136-174 MHz, UHF 380-512 MHz, 700/800/900 MHz
• Trunked and Conventional Operation: Including direct modes for unit to unit communications
• Multiple System Configurations: P25 offers: direct mode, repeated, single site, multi-site, voting, multicast, and simulcast configurations
Project 25….. A Snapshot
March 201616Project 25 Technology Interest Group
Project 25: Interfaces & Services
AUTHENTICATION
TRUNKING
AIR
INTERFACES
SECURITY
INTERFACESWIRELINE
INTERFACES
ISSI/CSSI
P25 FDMA
COMMON AIR
INTERFACE
TRUNKING
Voice/Data
CONVENTIONAL
Voice/Data
P25 TDMA
COMMON AIR
INTERFACE
TRUNKING
Voice
NETWORK
MANAGEMENT
KEY FILL
INTER- KMF
KMF KMF
DATA
SERVICES
DATA
INTERFACES
SUBSCRIBER
DATA
PERIPHERAL
INTERFACE
OTAR
KMF
DATA NETWORK
INTERFACE
Gateway
FSI
Conventional
Analog/Digital
Voice/Control
TRUNKING
Voice/Data/Control
CONVENTIONAL
Voice/Control
SECURITY
SERVICES
ENCRYPTION
Voice/Data
LOCATION
Gateway
TIER 1
Conventional
TIER 2
Trunking/Conventional
TRUNKING/CONVENTIONAL
March 201617Project 25 Technology Interest Group
Configuration
Supported
Trunking Conventional Description/Benefit
Multicast Enables coverage of wider areas with fewer transmitter
sites when compared to simulcast
Simulcast Enables reuse of frequencies to increase coverage
penetration of a given area and for spectral efficiency
Direct/Simplex Supported in SUs for
off-network operation
Enables radio to radio communication without fixed
infrastructure. Quicker communication for onsite
scenarios such as a fire ground
Repeated Enables a radio call to be repeated from one frequency
to another, enabling communications over a larger
geographic area
Voting Improved inbound communications for portable radios
Single Site Enables radio communications within one site’s worth
of coverage
Multi-Site Enables radio communications over several site’s
worth of coverage
Project 25 Technology Interest Group
Mix-match between Trunked, Conventional, Site Linking, Wide Area, or Stand Alone
P25 Scalable Solutions
March 201618Project 25 Technology Interest Group
• Multiple Call Types: P25 call features include: group and individual calls, emergency calls, unit IDs, supplemental services (e.g. call alert, radio check, radio monitor, radio disable, status), all with and without encryption.
• Multiple Services: IP and Common Air Interface data bearer services, control signaling services, mobility management services and location services.
• Secure Voice, Data, and Location: P25 includes the option for Federal Government endorsed 256 bit AES encryption, OTAR, Key management. P25 offers Multi-Vendor compliant products that meet NSA NIST 140-2 standards for encryption
• Intrinsically Safe Compliance: Numerous P25 products are compliant with North American Standards for use in hazardous environments
Project 25….. A Snapshot
March 201619Project 25 Technology Interest Group
• Mature Product Testing Specifications: The P25 Suite of Standards includes detailed specifications for Performance, Conformance and Interoperability testing.
• Additional Performance Requirements: P25 includes coverage performance modeling and verification methods, receiver and transmitter performance measurement methods and specifications for both FDMA and TDMA air interfaces. Also, voice service access and throughput delay specifications and measurement methods for radios, base stations and Trunking systems.
• Advanced Vocoder: Project 25 defines a rigorous vocoder intelligibility and background noise performance evaluation process that has resulted in approval of interoperable full rate and half rate digital vocoders.
• DHS supported P25 Testing Compliance: P25 CAP testing information from DHS approved labs is open to all Manufacturers and Users.
Project 25….. A Snapshot
March 201620Project 25 Technology Interest Group
• Dominant Public Safety Standard: There are currently over 700 Project 25 trunkingsystems on the air supporting interoperable communications in the United States, Australia, Canada, New Zealand and the UK.
• Worldwide Footprint: There are additional P25 systems operating in over 80 other nations worldwide.
• DHS Support: The DHS OEC Fiscal Year 2015 SAFECOM Guidance on Emergency Communications Grants specifies that, “grantees should continue to invest in equipment that is standards-based to enable interoperability between agencies and jurisdictions, regardless of vendor”, and further recommends P25-compliant LMR equipment for mission critical communications”.
• FCC Mandate: The FCC defines specific channels within the 700 MHz band allocation as “Narrowband Interoperability Channels” and requires P25 to maintain interoperability.
Project 25….. Acceptance
March 201621Project 25 Technology Interest Group
Current Systems
State contains city, county, or multiple county P25 system
State contains statewide P25 system + other P25 systems
• 700+ P25 systems in all 50 states and US Territories• 26+ Statewide P25 systems
March 201622Project 25 Technology Interest Group
Project 25 systems are deployed in 83 countries
Slide 22Project 25 Technology Interest Group
March 201623Project 25 Technology Interest Group
PROJECT 25 TECHNOLOGY
INTEREST GROUP
Visit PTIG in Booth # 764 IWCE 2016
OUR MEMBER ORGANIZATIONSAS EXHBITORS ALSO
SAY
THANK YOU
PROJECT 25
Technology Interest Group
MEMBERS EXHIBITING
Booth Number
• AVTEC 935
• CATALYST COMMUNICATIONS TECHNOLOGIES 1752
• CISCO 755
• COBHAM (Aeroflex) 1055
• CODAN RADIO COMMUNICATIONS 1857
• EFJOHNSON TECHNOLOGIES 1229
• ETHERSTACK 755
• FUTURECOM SYSTEMS 1021
• GENESIS GROUP 1741
• HARRIS CORPORATION 1455
• ICOM AMERICA 1465
• IDA CORP 1065
• JVC KENWOOD 1229
• MOTOROLA SOLUTIONS 1029
• POWERTRUNK 1829
• PROJECT 25 TECHNOLOGY INTEREST GROUP (PTIG) 764
• RELM WIRELESS CORP 1255
• SIMOCO 1149
• TAIT COMMUNICATIONS 943
• TELEX 955
• TIMCO ENGINEERING 922
• UNICATION 2351
• VERTEX STANDARD 1039
• ZETRON 1429
SUSTAINING MEMBERS
FOUNDING MEMBERS
March 201624Project 25 Technology Interest Group
International Wireless Communications ExpoCollege of Technology
Tuesday, March 22, 20168:30 - 11:30 a.m.
Department Of Homeland Security Office of Emergency Communications
Update for 2016
Chris Essid
Deputy Director, DHS, OEC
March 201625Project 25 Technology Interest Group
Miami-Dade CountyP25 Radio Systems
Miami-Dade County FLCindy Cast, Radio Division Director
March 201626Project 25 Technology Interest Group
Miami-Dade County Demographics
• Over 2.6 million residents• Over 2,200 square miles (larger in size than the states of Rhode Island and Delaware, and larger in population than 17
states) with over 20 miles of sandy beaches• Economy, at $75 billion Gross County Product is larger than that of 70 countries • 14.6 million overnight visitors from Europe, Latin America, North America and Asia yearly. • County operates on a budget of more than $6 billion. • Largest Police and Fire Rescue Dept in the SE region of the US. • 4th largest school district in the nation, with 340 public schools serving 400,000 students• 1st highest international airport traffic and 2nd busiest airport for international passengers - more than 100 airlines flew
over 45 million passengers • Largest Seaport in Florida – 4.3 million passengers and 8 million tons of cargo• Public Transportation - 164 million passengers yearly• 28 hospitals and more than 32,000 licensed health care professionals • 3rd-largest public hospital in the nation • Water and Sewer Dept is one of the largest public utility in the US• Turkey Point Nuclear Power Plant, operated by Florida Power and Light (FPL), is the largest electric utility in Florida, serving
about half of the population of Florida • The County is home to more than 100 foreign consulate offices and 25 foreign trade offices, the most in the State of Florida • Southern Command Military Headquarters and US Coast Guard Sector Miami• Federal Headquarters for multiple agencies
March 201627Project 25 Technology Interest Group
Miami-Dade County Government
Miami-Dade County:– Is divided into 25 County Departments– Has over 30,000 Employees
Information Technology Department:– Is the steward of existing and emerging technologies in support of the
County government operations and services to the public– Is divided into different Divisions based on technology and/or services
Radio Communications Services Division:– Mission is to serve Local and Regional Public Safety First Responders and
County departments with efficient, reliable, and professional mobile Radio Communications Services and solutions, in a timely and responsive manner.
March 201628Project 25 Technology Interest Group
Radio Communications Services DivisionLogistics:
– Administration and Management of the core radio system and networks– Manage Licensing for radio sites and frequencies (FAA/FCC)– Work with User agencies (Interoperability, Communication Planning, Configuration, Encryption,
Dispatch interface, Procedures, etc.)Fixed Systems:
– Repair and Maintain Radio Infrastructure Equipment at the sites– Work on field installed equipment (consoles, desktops, BDAs, etc.)– Troubleshoot system and coverage issues (Deploy RDCS)
Radio Engineering:– New Equipment evaluation (including coverage, BDAs, etc.)– Project Management for new equipment installation– Interference mitigation
Radio Shop:– Program Radios (portables, mobiles, and desktops)– Repair Radios (portables, mobiles, and desktops)– Vehicle Installation of radios and lighting equipment
March 201629Project 25 Technology Interest Group
109 agencies with 30,000 radio devices (portables, mobiles, desktops, and consoles)
Radio User Community
March 201630Project 25 Technology Interest Group
109 agencies with 30,000 radio devices (portables, mobiles, desktops, and consoles)
Radio User Community
March 201631Project 25 Technology Interest Group
• To leverage the Rebanding project we are upgrading the infrastructure at the same time as a requirement to meet the “NO” downtime for the project.
• Transition from a Trunked Simulcast analog proprietary EDACS platform to a Harris P25 open source platform.
• The overall structure of the County’s system design will not change – Miami-Dade will still be served by two overlaid county-wide voice communications systems, utilizing the current radio sites.
Radio System Transition to P25
March 201632Project 25 Technology Interest Group
• The contract had two funding sources (Sprint-Nextel and the County)
• The project was completed in two tasks.
– 1st Task completed by Dec 2012 transitioned users to a 20-channel P25 trunked simulcast system. The users of this system consist of non-law enforcement agencies and departments (i.e. OEM, Fire Rescue, Schools, and Transit). As part of this task, a Harris P25 Inter RF Subsystem Interface (ISSI) was configured to work with a Motorola P25 ISSI connected to a County owned 450 MHz conventional system. These ISSI connections provide access to additional radios to connect to the system.
– 2nd Task completed by Nov 2014 transitioned law enforcement users to a 20-channel P25 trunked simulcast system. Along with the transition of several single sites to P25.
Radio System P25 Transition
March 201633Project 25 Technology Interest Group
Miami-Dade County Radio Network
March 201634Project 25 Technology Interest Group
Miami-Dade County Radio Consoles
March 201635Project 25 Technology Interest Group
State of Florida P25 ID Plan
March 201636Project 25 Technology Interest Group
P25 Major Feats
• Rigorous Planning• Commitment from User Community• Digital-Cliff vs. Analog Understanding• Voice Audio Differences• Dispatcher Training• Extensive User Training
– one-on-one– Group– Roll-call meetings– Overview meetings– 24/7 call center – Quick-reference training
pamphlets
March 201637Project 25 Technology Interest Group
Benefits of P25
• Public Safety, User Defined, Features and Capabilities:– AES Voice Encryption– Over the Air Re-key (OTAR) for Encryption– Secure IP Network
• System of Systems is a Reality– ISSI system connections
• Cost Effective Coverage– P25 Simulcast (flexibility of adding sites and enhancing coverage)
• P25 Spectrum Usage– UHF, 800, & 700
• P25 Standards Tested in DHS supported labs (multiple vendors)– Assurances (peace of mind in multi-vendor P25 equipment)
March 201638Project 25 Technology Interest Group
Developing P25 Radio Testing & Contract Pool
Ven
do
r Radio
Pro
gra
mm
ing
March 201639Project 25 Technology Interest Group
• 7,000,000 radio transmissions monthly (PTTs)
• 225,000 PSAP 911 emergency telephone calls monthly
• 1,000 talkgroups
– 95% of law enforcement talkgroups are AES encrypted
• 131 frequencies
• 83 dispatch IP consoles
• 30,000 subscriber units (109 agencies)
• 26 Conventional Interfaces
Approximate Usage
March 201640Project 25 Technology Interest Group
Large Planned Events:
Miami-Dade P25 Radio System Supports
Memorial Day Weekend – Hip-Hop Event
Columbus Day Regatta
Ultra Music Festival
Sporting Events
Miami Marathon
Music Events
March 201641Project 25 Technology Interest Group
Incidents:
Miami-Dade P25 Radio System Supports
March 201642Project 25 Technology Interest Group
Large-Scale Exercises:
System Supports
March 201643Project 25 Technology Interest Group Slide 43Project 25 Technology Interest Group
Cindy Cast, Radio Division DirectorMiami-Dade County FL
March 201644Project 25 Technology Interest Group
Washington State Patrol P25 Narrowbanding Project
Lessons in fielding a diverse P25 system
March 201645Project 25 Technology Interest Group
Legacy System OverviewWhere did we start
• VHF wideband analog– 132 sites, primarily high power, high sites
• 72 agency owned and managed
– 280 Conventional base stations and repeaters
– 3000 subscriber units
– 8 Communication Centers
– 18 non-WSP LE agencies
– Agency owned microwave backhaul
– Self supporting
• 22 Field technicians
• 6 shop technicians
• 4 tower specialists
March 201646Project 25 Technology Interest Group
P25 project scopeWhere are we going
• $41.1 Million funded in 2011
– 1300 multiband (VHF/700/800) portable radios
– 1250 multiband (VHF/700/800) mobile radios
– 47 IP based dispatch consoles
– Digital radio and telephone logging recorders
– Upgrade Primary Dispatch base stations and repeaters to P25Conventional operation
– Convert interoperability base stations and repeaters to narrowband analog operation
– Integrated Wireless Network (IWN) VHF P25 trunking
– 700MHz P25 Phase 2 trunking
– Digital microwave MPLS upgrade
March 201647Project 25 Technology Interest Group
System of System approachWhat makes us unique
• Joined IWN as zone 2 of the system, using an inter-zone link
• Local partnership with the Spokane Regional Emergency Communication System (SRECS)
– WSP 800MHz P25 primary talkgroup on SRECS system
– WSP VHF P25 conventional on WSP/IWN system patched at the console level
– WSP VHF P25 trunked talkgroups on the WSP/IWN system patched at the console level
– IWN VHF P25 Interop talkgroups for dispatching Federal agencies
– Narrowband analog State, LERN, OSCCR
March 201648Project 25 Technology Interest Group
System of System approachWhat makes us unique
• Local partnership with the Pierce County Combined Communications Network (CCN)
– WSP 700MHz P25 phase 2 primary talkgroups on CCN system
– WSP VHF P25 conventional on WSP/IWN system patched at the console level
– WSP VHF P25 trunked talkgroups on the WSP/IWN system patched at the console level
– IWN VHF P25 Interop talkgroups for dispatching Federal agencies and interoperability
– Narrowband analog interoperability channels
– Narrowband analog simulcast system on SR410
March 201649Project 25 Technology Interest Group
System of System approachWhy do it this way?
• System sharing lowers the cost for all parties
– Shared infrastructure costs for each system operator
– Shared maintenance costs
– Reduced duplication
• Increased coverage
• Increased interoperability
• Better situational awareness
• It’s the Right Thing to Do!
March 201650Project 25 Technology Interest Group
System of System approachThere’s got to be a downside, right?
• Each zone / system should be at the same release level
• System changes and maintenance outages need to be coordinated
• Less control over your system and requires a higher level of trust and reliance
• Can result in a more complex design
• More complex governance
– You need strong agreements
March 201651Project 25 Technology Interest Group
WSP District Map
March 201652Project 25 Technology Interest Group
Bumps along the roadThere have been a few
• System architecture:
– Legacy VHF system design created challenges in P25 conventional
• High power + high sites
• Simplex channels
• Frequency reuse
• Sensitive radios with no capture affect
• No baseline of legacy coverage
• Not engineered as a single system
• Site grounding not as robust as it should have been
March 201653Project 25 Technology Interest Group
Bumps along the roadWhat a long strange ride it has been
• Subscriber equipment and users:– Audio Quality complaints
• Audio settings in the subscriber radios needed to be optimized• No squelch control so fringe signals come in distorted
– System complexity• Very limited history of using trunking• Too many talkgroups initially• Not all system users upgraded radios
– User expectations• New radios should work everywhere• Should be able to scan everything I could before• Partner agencies are changing systems at the same time causing
interoperability challenges
March 201654Project 25 Technology Interest Group
Lessons LearnedMostly the hard way
• Turn down the power:– Better coverage was realized in P25 conventional in many cases by
reducing base station and repeater transmit power– With frequency reuse and hot mobile receivers you can get on
channel interference creating moving dead spots• Survey coverage in all areas prior to deploying:
– Survey existing analog coverage if possible to set a baseline– Collect signal strength, BER, and DAQ in P25 conventional– Map coverage results and provide these to system users
• Avoid simplex operation– Self-induced multipath and on-channel interference, gives system
users the appearance of poor coverage and roaming dead spots
March 201655Project 25 Technology Interest Group
More lessons Learned
• Interoperability:
– Trunking operation is not the preferred solution for areas where partner agencies operate primarily in conventional mode
• Training:
– Train before, during, and after system cutovers
– Training by officers is better received from other officers than from technical staff
– Use your hot keys
– Train some more, then repeat
• Manage expectations:
– A new radio does not equate to 100% coverage
March 201656Project 25 Technology Interest Group
Interoperability SuccessesUSGA U.S. Open communications
• Pierce County CCN system used for event communications
– 225 WSP Troopers from 7 districts used the system using their own portable radios
– Advanced System Key sharing agreement was critical
– All WSP radios are in the CCN database
– Existing Interoperability talkgroups utilized
• Communications planned using the ICS model
• Both encrypted and clear talkgroups were used
• Seamless communications with no technical issues experienced
March 201657Project 25 Technology Interest Group
Interoperability SuccessesChinese Presidential Delegation visit
• Primary WSP event communications used the IWN / WSP trunking system
– Motorcade routes covered 3 districts
– Seamless coverage from Everett to Tacoma on a single talkgroup
– System PTTS - 138,637
– Calls – 93,716
– Call Time 295:10:46
– Busies - 979
• Both encrypted and clear talkgroups were used
• Seamless communications with no technical issues experienced
March 201658Project 25 Technology Interest Group
Interoperability SuccessesChinese Presidential Delegation visit
• Interoperable Communications used the IWN / WSP and King Co. radio systems
─ SPD motorcycles patched to WSP talkgroup via TRIS
─ WSP Lt. and Sgts. used PSOPS talkgroup on WSP portables to talk to local LE agencies
─ Air units coordinated through King County MARS talkgroup
─ Federal LE agencies had the ability to talk to WSP using the IWN / WSP system
• Normal dispatch was unaffected
March 201659Project 25 Technology Interest Group
After ActionWhy it worked
• A communications component was embedded with the Incident Management Team in both events
• Communications planning followed the ICS model
• Pre-existing and pre-coordinated regional and system Interoperability talkgroups were used
• System and key sharing agreements were in place prior to the event
• All WSP unit IDs are in the Pierce County and Spokane County system databases
• WSP fleet uses P25 multiband radios
• Voluntary statewide unit ID scheme adopted that de-conflicts unit IDs between State, County, and some Federal users
March 201660Project 25 Technology Interest Group
Thank You
Bob SchwentElectronic Services Division CommanderWashington State PatrolWashington Statewide Interoperability Coordinator
[email protected](360) 534-0601
International Wireless Communications ExpoCollege of Technology
Tuesday, March 22, 20168:30 - 11:30 a.m.
Project 25 User’s Perspective and Customer Applications Update for 2016
Jim Downes
FEDERAL PARTNERSHIP FOR INTEROPERABLE COMMUNICATIONS (FPIC)Chairman
Project 25 Steering Committee Chairman
Project 25 Background
• Project 25 (P25) was created as a joint project between the Association of Public-Safety Communications Officials (APCO), the National Association of State Telecommunications Directors (NASTD) and the Federal Government in 1989
• P25 set out to address—
– Spectral efficiency
– Backwards compatibility
– Enhanced interoperability
– Ease of migration and scalability
– Increased vendor competition
• Formed partnership with the Telecommunications Industry Association (TIA) in 1992 to create the P25 Suite of Standards
Project 25 Technology Interest Group 62MARCH 2016
DHS and most Federal Agencies Continued Support for P25
• Mission critical voice land mobile radio (LMR) is going to be around for a long time
• P25 is the best choice for interoperability
• The Department of Homeland Security (DHS) continues to be committed to P25
Project 25 Technology Interest Group 63MARCH 2016
– P25 is the recommended technology of choice for interoperability in the SAFECOM Grant Guidance
– P25 is a significant part of the National Emergency Communications Plan (NECP)
– DHS’ Office of Emergency Communications (OEC) actively participates in the P25 development process and currently supports the chair of the P25 Steering Committee
Importance of LMR Sustainment and Continued Interoperability Efforts
• The sustainment of resources and operational capability supporting LMR is vital to public safety mission-critical communications
• It is important that government leaders and public safety managers recognize sustained funding is critical to keep LMR systems functional
• The Federal Partnership for Interoperable Communications (FPIC), in coordination with OEC, is working closely with SAFECOM – NCSWIC to address LMR issues at all levels of public safety that include technology, funding, governance and others
Project 25 Technology Interest Group 64MARCH 2016
LMR Sustainment and Interoperability Efforts (cont’d)
• Communications operability is the key to enhanced interoperability
• Sustainment is not limited to funding
- Governance within and between disciplines/jurisdictions can impact sustainment
- Resource sharing can provide “cost avoidance”
• The FPIC Security Working Group is addressing encryption technology and best practices to improve encrypted communications interoperability
Project 25 Technology Interest Group 65MARCH 2016
LMR Sustainment and Interoperability Efforts (cont’d)
• Significant interest in encryption has increased and is being implemented in LMR systems
• The use of standards compliant encryption is essential to interoperability
– Common procedures and coordination are essential to cost effective interoperability
– The FPIC recently released the Recommended Storage Location Numbers Allocation List for Nationwide Encryption
– The FPIC Security Working Group is addressing encryption technology and best practices to improve encrypted communications interoperability
Project 25 Technology Interest Group 66MARCH 2016
Federal Government and P25
• The Federal Government has been an active participant in the Project 25 Standards creation since the beginning of the program
– Initiated in part by the National Telecommunications and Information Administration (NTIA) narrowband mandate
– Federal requirements for secure communications forced a migration to digital technologies with advanced encryption capabilities
• Most Federal Agencies have adopted Project 25 for tactical voice communications starting in the mid-1990’s
– Most agencies are operating narrowband, conventional, encrypted systems
– Major federal agencies who have installed P25 conventional systems include FBI, ATF, CBP, DEA, ICE, BLM, NPS, F&WS, USCG, USFS, TSA, TIGTA, FEMA, APHIS, USMS, USSS, DOE
– A number of Federal Agencies operate or participate in P25 trunked systems, including DOJ Bureau of Prisons and IWN, Lawrence Livermore National Lab, Department of Defense, and others
Project 25 Technology Interest Group 67MARCH 2016
Federal Government and P25 (cont’d)
• As PS Broadband moves forward, most federal agencies continue to promote P25 as the best solution to provide interoperable, digital, mission critical communications for the foreseeable future
• Reduced Federal budgets force agencies to seek opportunities to achieve cost effective solutions and operational efficiencies by securing partnerships with statewide and regional public safety systems
– Enhanced coverage
– Better interoperability with state and local agencies
– Typically provides a multi-vendor environment
– Resource sharing
Project 25 Technology Interest Group 68MARCH 2016
Federal Government and P25 (cont’d)
• The P25 standards provide a capability to take advantage of a competitive market and the introduction of multi-band subscribers further enhances the ability to operate on different P25 Systems
• The partnership in Wyoming is a prime example of how Project 25 has supported an opportunity for the Federal Government to form a partnership with the State of Wyoming resulting in enhanced communications for all concerned
• These partnerships have been developed in other states, including Alaska, Connecticut, Missouri, South Carolina, and Washington – without P25, these cooperative activities would unlikely
Project 25 Technology Interest Group 69MARCH 2016
Cooperative Partnerships:Improving Operability and Interoperability
• A primary recommendation of the NECP is to “Promote opportunities to share Federal emergency communications infrastructure and resources”
• That objective includes establishing Cooperative Partnerships and Shared Infrastructure Initiatives to improve operability and interoperability
• Benefits include improved interoperability, increased coverage, decreased cost, and shared resources (spectrum, land, infrastructure)
• The FPIC has promoted these initiatives for many years and is embarking on a new initiative with the NCSWIC to identify assets for potential future partnerships
Project 25 Technology Interest Group 70MARCH 2016
Project 25 Compliance Assessment
• The federal agencies and OEC strongly supports the P25 Compliance Assessment Program (CAP) process managed by DHS Office for Interoperability and Compatibility (OIC)
• It is critical that P25 equipment and systems are compliant with the published standards and confirmed through an open and coordinated process
• It is important to emphasize that both the Project 25 Steering Committee and the TIA TR-8 Engineering Committee support the CAP process and strive for coordination and collaboration.
- Jointly developed P25 recommended compliance assessment tests (RCATs) for
consideration
- Forwarded test procedures consistent with standardsProject 25 Technology Interest Group 71MARCH 2016
MARCH 2016 Project 25 Technology Interest Group 72
P25 standards ensure data can be passed across all levels of digital
radio interfaces, as illustrated above.
P25 and the User
• P25’s influence continues to expand
– Deployed in over 83 countries
– There are 35 companies that provide a P25 product or service
– A P25-compliant voice pager was recently introduced
• P25 continues to develop
– Ongoing maintenance
– User input is critical to the success of the standards
– New technologies are being added
• User participation is required
– User participation in the development of the standards
– Include applicable P25 CAP documentation
Project 25 Technology Interest Group 73MARCH 2016
Summary
• In 2014 P25 celebrated 25 years of user-industry cooperation
• P25 continues to evolve
• User participation is essential to the continued success of P25 interoperability
• The P25 Steering Committee and User Needs Subcommittee requests your participation in the process
• User participation is crucial to validate real-world requirements
Project 25 Technology Interest Group 74MARCH 2016
Questions?
• Please direct any questions regarding DHS OEC or FPIC activities in the P25 environment to:
Jim Downes
US Department of Homeland Security
Office of Emergency Communications
Project 25 Technology Interest Group 75MARCH 2015
March 201676Project 25 Technology Interest Group
Project 25 User’s Perspective
Greater Austin-Travis County Regional Radio System
(GATRRS)
Chuck Brotherton, Wireless Manager, GATRRS Program ManagerCity of Austin, Texas
March 201677Project 25 Technology Interest Group
SOUTH CAROLINA BUDGET AND CONTROL BOARD
DIVISION OF TECHNOLOGY OPERATIONS
IWCE 2016
South Carolina P25
SystemsOctober 2015 Flooding
March 201678Project 25 Technology Interest Group
March 201679Project 25 Technology Interest Group
1999 - Hurricane Floyd
Graniteville South Carolina
March 201681Project 25 Technology Interest Group
March 201683Project 25 Technology Interest Group
Charleston, SC
Earthquake 1886
Magnitude 7.6
March 201685Project 25 Technology Interest Group
March 201686Project 25 Technology Interest Group
South Carolina Public Safety
Communications Networks
• VHF Networks
• UHF Networks
• P25 County Trunked Networks
• Palmetto 800 P25 Network (35,000+)
• PATCON (PAalmetto Tactical COmmunications Network
• Palmetto 800 AstroP25 High Performance Data (HPD)
• The Palmetto 800 Radio Network is a shared public/private partnership fee based user system between the state an more that 20 local governments, power utilities. The Network serves South Carolina, North Carolina and Augusta-Richmond County , Georgia.
• The system operates on multiple P25 Cores supporting P25 and 4.1 Smart-X sites. The Palmetto 800 system will complete it’s statewide migration to P25 in the fall of 2017.
• The system has been in operation since 1992.
Palmetto 800 Radio Network
March 201688Project 25 Technology Interest Group
Palmetto 800 Statewide Radio
Network
P25 Interoperability Talkgroups & Channels
• 15 – Statewide mutual aid talkgroups.
• 10 – Regional mutual aid talkgroups
• 15 – Law Enforcement mutual aid talkgroups.
(Also utilized for state evacuation routes)
• 5 – SC Statewide 800 MHz conventional channels.
• 5 – National 800 MHz ITAC conventional channels.
• 1 – SC Air to Ground
• Dyn- Reg – Dynamic Regrouping
– The PATCON (PAlmetto Tactical COmmunications Network) network is over-layed on top of the statewide trunked network. The network includes 8SCTACs and National 8TAC90s conventional repeaters checker boarded across the State.
– (130) transmitter sites statewide.
– All SC Major Universities covered by conventional repeaters.
– All nuclear facilities in SC covered by conventional repeaters.
– Every county in SC has at least (1) conventional repeater. Urban areas have more repeaters.
PATCON 800 Statewide Conventional
Radio Network
PATCON
Statewide
Coverage
March 201691Project 25 Technology Interest Group
March 201692Project 25 Technology Interest Group
March 201693Project 25 Technology Interest Group
March 201694Project 25 Technology Interest Group
March 201695Project 25 Technology Interest Group
March 201696Project 25 Technology Interest Group
– City of Columbia was without water.
• Chiller systems at commercial telecommunications hubs began to run low on water.
• 5 hospitals without water - major water shuttle operation.
• Main commercial power for the city and communications fiber had to be rerouted.
– 95 miles of interstate closed and thousands of roads impassable.
– City of Forest Acres dispatch/911 center had to be moved twice.
– Power, telephone, cellular, water and sewer service was out in large areas of the State.
– Supplies of water, food and fuel were difficult to find in flooded areas.
Communications Challenges
– Palmetto 800 System
• Managing system loading. Palmetto 800 NOC 7x24 and essential operations plans.
• Efficient use of mutual aid talkgroups.
• State cache of 300 radios was depleted.
• Refueling generators.
• Circuit issues for Georgetown County simulcast sites.
• Curfews and flooding made access difficult to make repairs radio.
• Dealing with agencies who forgot how to function during a real emergency.
Communications Challenges
– Palmetto 800 System Continued
• Resources brought in for support trying to make operational decisions for a radio system they knew nothing about and did not know about communications plans in place.
• Request for communications resources failed to follow chain of command. Too many people thought they should be Chief.
– Successes
• Communications Strike Team.
• 48hr deployment of 100 P25 new radios
• P25 and Smart-X RF infrastructure almost flawless.
• Vendor support and connections.
• Other State and Local agency support.
Communications Challenges
March 2016100Project 25 Technology Interest Group
Palmetto 800 Statewide Radio
Network
Questions
March 2016101Project 25 Technology Interest Group
Contact Information
George Crouch
Division of Technology Operations
4430 Broad River Rd.
Columbia, SC 29210
(803) 896-0367
March 2016102Project 25 Technology Interest Group
Alaska Land Mobile Radio (ALMR)
Communications System
Del Smith
Operations Manager
March 22, 2016
A FEDERAL, STATE AND MUNICIPAL PARTNERSHIPA FEDERAL, STATE AND MUNICIPAL PARTNERSHIP
March 2016103Project 25 Technology Interest Group
Alaska’s Size
March 2016104Project 25 Technology Interest Group
ALMR System Coverage(built to 90% mobile roadway coverage)
March 2016105Project 25 Technology Interest Group
Remote Mountain-top Sites
LION HEAD
DIVIDE
“High sites” help extend coverage over vast distances in the mountainous terrain.
March 2016106Project 25 Technology Interest Group
Agenda
Primary Drivers
Governance
Technology
Interoperability
Operations and Maintenance
March 2016107Project 25 Technology Interest Group
Primary Drivers
107
March 2016108Project 25 Technology Interest Group
SOA Emergency Response Commission Report cited Alaska disasters/mutual aid responses ……“Interoperability main issue…”
Many different radio systems deployed throughout Alaska
Need to replace aging equipment
Federal and FCC Narrowband Frequency requirements
9/11 Homeland Defense/Homeland Security & DefenseAssistance to Civil Authority roles and missions
Combined System
March 2016109Project 25 Technology Interest Group
Cooperative Approach
• Federal, State and Local Government partnership to build, operate and maintain a single shared LMR infrastructure
Leveraged narrowband migration requirement• Agencies contributed infrastructure to make up the system
Department of Defense (DOD) and State of Alaska (SOA) major ALMR infrastructure partners; Municipality Of Anchorage for Anchorage Wide Area Radio Network (AWARN)
Federal agencies and local governments mainly subscriber-based users
• Infrastructure meets each agencies day-to-day needs• Infrastructure is standards compliant and provides secure interoperable communications• Capital investment cannot be recouped in the cooperative cost share• Cooperative partnership will cost share operations and maintenance (O&M) costs
March 2016110Project 25 Technology Interest Group
SAFECOM Interoperability Continuum
Interoperability Continuum Success Elements Governance –
SIEC/Regional committee
Standard Operating Procedures –
NIMS-integrated SOPs
Technology –
Standards-based, shared systems
Training & Exercises –
Regional comprehensive training and
exercises
Usage –
Daily use throughout system
High degree of leadership, planning and
collaboration among areas with
commitment to, and investment in,
sustainability and documentation
March 2016111Project 25 Technology Interest Group
Governance
March 2016112Project 25 Technology Interest Group
Key Agreements
Sep 1997: Executive Council Charter (revisions in 2000,2003 and 2008)
Oct 1997: MOU to release “Request for Information” to industry
Apr 2001: MOU commitment to move forward
Jul 2003: MOA (DOD and State of Alaska) for shared use of DOD spectrum resources
Dec 2007: Cooperative Agreement (signed December 14, 2007)
Feb 2008: Service Level Agreement (signed February 26, 2008)
Jan 2016: Cost Share Agreement (renewed annually)
March 2016113Project 25 Technology Interest Group
Cooperative Agreement
The Cooperative Agreement was entered into by: State of Alaska (SOA): material ownership interest DOD – Alaska (DOD): material ownership interest Alaska Federal Executive Association (AFEA): non-material ownership interest
The Cooperative Agreement (22 Articles) establishes; Agencies authority to engage in the cooperative General provisions for the cooperative partnership Cooperative partnership termination Limits to financial obligations for the signed parties Organizational structures and users User council Budget process, cost recovery, user agreements and obligations of the parties Hold harmless and indemnification of the parties
March 2016114Project 25 Technology Interest Group
Service Level Agreement
The Service Level Agreement was entered into by: SOA: material ownership interest DOD: material ownership interest AFEA: non-material ownership interest
The Service Level Agreement establishes: Standards and levels of maintenance and quality of service requirements to
be maintained by infrastructure owners The baseline for development and execution of the Statement of Work for
operations and maintenance contracts
March 2016115Project 25 Technology Interest Group
Membership Agreement
The Membership Agreement is entered into by:All user agencies operating on the ALMR System: material
and non-material ownership interest
The Membership Agreement establishes: Responsibilities of the member agency for operation on
ALMR
March 2016116Project 25 Technology Interest Group
Governing Bodies
EXECUTIVE COUNCIL
Voting Members:
State of Alaska
Federal Agencies Non-DOD
Department of Defense (DOD)
Associate/Non-Voting Members:
Alaska Municipal League (AML)
Municipality of Anchorage (MOA)
- Each Executive Council sector has one member
USER COUNCIL
State of Alaska
Department of Defense
Federal Non-DOD
Municipalities/Locals
- Each of the four User Council sectors has three primary and three alternative members
- All four sectors have voting status
March 2016117Project 25 Technology Interest Group
Technology
March 2016118Project 25 Technology Interest Group
118
Implementation Pillars
FixedInfrastructureCoverage
Gateway For DisparateRadio Systems
In-Building CoverageFor Critical Infrastructure
TransportableSystems
Increase capacity
Extend range of thenetwork
Provide temporary replacement
Provide coverage outside of fixed infrastructure
Continuity of operations
ALMR FIRST RESPONDER INTEROPERABILITY
Day-to-Day, Mutual Aid, Joint Task Force
Standards Based Communications for First Responders
SECURE, ON DEMAND & IN REAL TIME
Note: 98% of system
March 2016119Project 25 Technology Interest Group
National standards-based, digital, trunked, VoIP, VHF, wide area
network
83 completed ALMR sites and two Master Controllers (Zone 1 -
North and Zone 2 - South)
12 Completed AWARN sites, P25, digital, trunked, 700MHz system
with one Master Controller (Zone 4)
123 User Agencies
Approximately 20,370 active mobile and portable radios (as of
January 2016)
Current System Summary
First Statewide, multi-agency, multi-jurisdictional public safety Trunking
system in the United States” FCC MOO DA03-2612, 7 Aug 2003
March 2016120Project 25 Technology Interest Group
State of Alaska Telecommunications System (SATS)
o Administered by the Enterprise Technology Services (ETS)
Division
SATS infrastructure includes shelters, towers, antennas and
power - all maintained by ETS
Connects ALMR sites (mostly via microwave)
o 160 SATS microwave sites
o 73 of the 160 are also ALMR sites
SATS is the ALMR Backbone
March 2016121Project 25 Technology Interest Group
Winter at Two State-owned Sites
HONOLULU
HENEY RANGE
March 2016122Project 25 Technology Interest Group
Shared Spectrum
FEDERAL-OWNED SPECTRUM
(frequencies governed by the NTIA)
STATE OF ALASKA-OWNED SPECTRUM(frequencies governed by the FCC)
The ability to share spectrum between the Federal and Non-Federal government
agencies required a waiver from the FCC and a signed agreement between the
Department of Defense and the State of Alaska.
NTIA
FCC
138 – 144 MHz
(mobile transmit)
154.65 – 156.24 MHz
(fixed transmit)
120 CHANNEL PAIRS
March 2016123Project 25 Technology Interest Group
Subscriber Distribution
Other Federal – 1,449 (7%)
State of Alaska – 6,982 (35%)DOD – 7,648 (38%)
Local - 3,899 (20%)
March 2016124Project 25 Technology Interest Group
Portable and Mobile Radios
124
• 28 different portable and mobile radio models have been approved to operate on ALMR
• 8 different manufacturers
March 2016125Project 25 Technology Interest Group
Gateways
– Alaska Interoperability Network (AIN)
– MotoBridge™ consoles
– Facilitates ad hoc and permanent bridging of disparate radio channels to establish interoperability with agencies outside of the ALMR System
– Over 30 at dispatch centers throughout the State
March 2016126Project 25 Technology Interest Group
Transportables
Two complete systems stored at JBER and Eielson
Main components:
Communications Shelter
Dispatch Shelter
Logistics Shelter
Tower/Power Skid
Satellite Skid (South system only)
Transporter
Prime Mover (Tug)
MESH Network Skid (South system only)
100 portable radios and 50 laptops
Other capabilities
Commercial Internet/Email (SIPR/NIPR Capable)
Video Surveillance
PSTN Telephone Service – 50 lines
Tandberg Tactical VTC
March 2016127Project 25 Technology Interest Group
Interoperability
March 2016128Project 25 Technology Interest Group
Growth Status by Year
Members
2007 – 73
2008 – 76
2010 – 106
2011 – 110
2012 – 116
2013 – 119
2014 – 122
2015 – 123
Subscribers
2007 – unavailable
2008 – 12,915
2010 – 13,544
2011 – 15,030
2012 – 16,408
2013 – 18,988
2014 – 19,247
2015 – 20,344
Voice Calls
2007 – 8,502,873
2008 – 9,008,350
2010 – 9,833,178
2011 – 10,451,463
2012 – 11,508,239
2013 – 12,778,142
2014 – 13,796,423
2015 – 13,879,613
March 2016129Project 25 Technology Interest Group
Member Agencies – State, DOD and Federal Non-DOD
March 2016130Project 25 Technology Interest Group
Member Agencies - Local
March 2016131Project 25 Technology Interest Group
Operations and Maintenance (O&M)
March 2016132Project 25 Technology Interest Group
USARAK (4)
JBER (1)
Eielson (3)
Clear (1)
MOA (12)
SOA (75)
Site Ownership
JBER
(1%)
CLEAR
AFS (1%)
SOA
(78%)
USARAK(4%)
MOA
(13%)EIELSON
(3%)
NOTE: St Paul Island is not
included in the above numbers.
March 2016133Project 25 Technology Interest Group
O&M Contracts
Three primary contracts are designed support the operations, maintenance and lifecycle requirements associated with the ALMR System
Infrastructure Operations and Maintenance Services (IOMS) Separate, but equal, contracts executed by SOA and DOD provide system management,
preventive maintenance, emergency response and System restoral
Operations Management Services (OMS) Single contract executed by SOA, cost shared by user agencies, provides operational
oversight, administrative management, User Council and Executive Council support, daily and emergency operations support
System Upgrade and Lifecycle Sustainment Services Separate contracts executed by SOA, DOD and MOA to provide system upgrade and lifecycle
sustainment of the system infrastructure
March 2016134Project 25 Technology Interest Group
ALMR Management
System Management Office - Mr. Travis Conant
Preventive Maintenance
System Repair
Talkgroup Setup and Management
Subscriber Authorization
Outage and Uptime Reporting
Asset Management
System Security
Operations Management Office
– Mr. Del Smith
Governance Management
Policies/Procedures/Plans
Member Coordination
Talkgroup Agreements
Budget Development
Records/Document Management
Preventive Maintenance Oversight
Security and Audits
March 2016135Project 25 Technology Interest Group
Questions
Del Smith
907-334-2636
March 2016136Project 25 Technology Interest Group
Questionsand
Answers
Slide 136Project 25 Technology Interest Group
March 2016137Project 25 Technology Interest Group
PROJECT 25 TECHNOLOGY
INTEREST GROUP
Visit PTIG in Booth # 764 IWCE 2016
OUR MEMBER ORGANIZATIONSAS EXHBITORS ALSO
SAY
THANK YOU
PROJECT 25
Technology Interest Group
MEMBERS EXHIBITING
Booth Number
• AVTEC 935
• CATALYST COMMUNICATIONS TECHNOLOGIES 1752
• CISCO 755
• COBHAM (Aeroflex) 1055
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• EFJOHNSON TECHNOLOGIES 1229
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• POWERTRUNK 1829
• PROJECT 25 TECHNOLOGY INTEREST GROUP (PTIG) 764
• RELM WIRELESS CORP 1255
• SIMOCO 1149
• TAIT COMMUNICATIONS 943
• TELEX 955
• TIMCO ENGINEERING 922
• UNICATION 2351
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SUSTAINING MEMBERS
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