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HiSeasNet Maintenance Visit Report - sssg,...

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Page 1 Completed by (Name/Signature): ____________________________________ Date: _________ HiSeasNet Maintenance Visit Report Ship Visited: R/V Oceanus Ship Location/Port: Woods Hole, MA Date(s) of work: September 15 – 18 , 2007 Work performed by: Karl Kapusta Visit Purpose: Ku-Band Antenna Maintenance Visit and check tracking issues. The ship had just returned from operation in the Mediterranean Ocean using a different satellite and Teleport services. The Seatel antenna tracking system was changed back to operation on Satmex 5 but was not tracking correctly. Major reported symptom was an AGC level lower than the Threshold level. DAC 2200 was due to be replaced under warranty. The original controller had a faulty on/off power switch. The ship left for the Mediterranean Ocean before a replacement could be delivered, so the change out occurred as soon as the ship returned to Woods Hole as part of the regular maintenance visit.
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Page 1: HiSeasNet Maintenance Visit Report - sssg, whoisssg1.whoi.edu/hiseasnet/maintenance.reports/Oceanus_Maintenance_Sept07.pdfCisco adapter and modem is in RS-422 mode Complete KK Verify

Page 1

Completed by (Name/Signature): ____________________________________ Date: _________

HiSeasNet Maintenance Visit Report

Ship Visited: R/V Oceanus

Ship Location/Port: Woods Hole, MA

Date(s) of work: September 15 – 18 , 2007

Work performed by: Karl Kapusta

Visit Purpose: Ku-Band Antenna Maintenance Visit and check tracking issues.

The ship had just returned from operation in the Mediterranean Ocean using a different satellite and Teleport

services. The Seatel antenna tracking system was changed back to operation on Satmex 5 but was not tracking

correctly. Major reported symptom was an AGC level lower than the Threshold level.

DAC 2200 was due to be replaced under warranty. The original controller had a faulty on/off power switch. The

ship left for the Mediterranean Ocean before a replacement could be delivered, so the change out occurred as

soon as the ship returned to Woods Hole as part of the regular maintenance visit.

Page 2: HiSeasNet Maintenance Visit Report - sssg, whoisssg1.whoi.edu/hiseasnet/maintenance.reports/Oceanus_Maintenance_Sept07.pdfCisco adapter and modem is in RS-422 mode Complete KK Verify

Page 2

Completed by (Name/Signature): ____________________________________ Date: _________

Maintenance Checklist Antenna Equipment (ignore SeaTel/Ship-specific points with * for fixed antennas) Initials Action Notes/Discussion

KK Take photo of radome exterior * Complete

KK Verify air conditioner is in working order, repair as

needed *

N/A – no air conditioner installed

KK Confirm/Set final air conditioner temperature set point

(85 deg F) *

N/A

KK Inspect or change air conditioner filter * N/A

KK Visual inspection of radome (cracks, abrasions, caulk,

leaks, excessive grime, etc.), repair as needed *

Complete - no visible damage

KK Visual inspection of radome base, legs, and connection

to ship (rust, warping, etc.), repair as needed *

Complete – no visible damage or rust

KK Take photo of dome/hub interior Complete

KK Perform SeaTel or Vertex service bulletin

upgrades/repairs

Complete

KK Inspect reflector, repair as needed Complete – good condition

KK Check antenna balance, adjust as needed * Complete – balance OK

KK Inspect antenna equipment/frame for water or rust,

repair as needed

Complete – the isolation springs were

found to be loose. The bolts inside the

springs that hold the pedestal

mounting plate to the base plate were

loose. All bolts were checked and the

nuts were tightened. Seatel was

informed of this issue and supported

the tightening solution

KK Inspect antenna equipment/frame for loose weights and

hardware, repair as needed *

Complete – all weights & hardware

were tight and secure

KK Lube/grease/treat any joints as necessary N/A

KK Inspect antenna equipment and wiring harness for loose

cables, repair as needed

Complete

KK Verify power level to pedestal/motors Complete

KK Verify pedestal breaker works, repair as needed Complete

KK Verify acceptable antenna/controller Power-On Self

Test (POST)

Complete

KK Sweep antenna through entire Az and El ranges Complete

KK Take photo of rack gear front Complete

KK Record DAC/controller parameters Complete – see attached

KK Verify DAC parameters are accessible, correct, and

saved *

Complete

KK Verify that GPS inputs to DAC function (if GPS is

operational) *

Complete

KK Verify that gyro inputs to DAC function (if gyro is

operational) *

Complete

KK Verify correct conscan or dishscan settings, adjust as

needed *

Complete – Dishscan in operation

KK Verify reasonable blackout zone, adjust as needed * Complete – None programmed

Page 3: HiSeasNet Maintenance Visit Report - sssg, whoisssg1.whoi.edu/hiseasnet/maintenance.reports/Oceanus_Maintenance_Sept07.pdfCisco adapter and modem is in RS-422 mode Complete KK Verify

Page 3

Completed by (Name/Signature): ____________________________________ Date: _________

Initials Action Notes/Discussion

KK Verify reasonable search limits or safety stops for given

location and satellite, adjust as needed

Complete

KK Check Az/El trim values, correct as needed to get

longitude search close *

Complete – Values reset – see

attached

KK Take photo of rack gear rear Complete

KK Inspect cabling and connectors behind and around rack

gear, repair as needed

Complete

KK Locate spares kit. Verify completeness of the kit, note

missing parts. *

Complete – No spares

KK Upgrade SeaTel/controller firmware with maintenance

releases as necessary

Complete – None required

KK Upgrade old ships with Conscan to Dishscan as needed

(Revelle, Melville, and Thompson)

N/A

Codan RF Equipment Initials Action Notes/Discussion

KK Take photo of converter panel N/A – BUC system does not require

Transceiver

KK Verify converter is not in an undue alarm state N/A – no Transceiver

KK Verify power levels at power supply (48 VDC, and 110

VAC). Record VDC and VAC

N/A – 48VDC to the BUC by the

Comtech modem was measured to be

47 VDC

VAC to antenna motors was measured

to be 116 VAC

KK Inspect RF coax cables and connectors, repair as needed Complete

KK Verify amplifier cooling fan functions Complete – BUC fan is operational

KK Verify amplifier is not being overdriven, correct as

needed

Complete

KK Locate and test RS-422/RS-232 adapter used with

converter, modify pinouts so it is not needed, or verify

that it is not needed as is. Note status.

Complete – No adaptor required

KK Locate and test DB-9/MIL serial cable that talks directly

to converter

Complete – cable is used to

communicate directly with the BUC

KK Locate spare LNB Complete – No spare available

KK Record settings (include serial number and wattage for

BUC)

Complete – see attached

s/n 6C40132F0081

Comtech Modem Equipment Initials Action Notes/Discussion

KK Verify settings are accessible, correct, and saved Complete

KK Verify modem locks on the correct signal, adjust as

needed

Complete

KK Visually inspect transmit signal directly for clean signal Complete

KK Verify expected Eb/No values for given location Complete

KK Record settings Complete – see attached

Page 4: HiSeasNet Maintenance Visit Report - sssg, whoisssg1.whoi.edu/hiseasnet/maintenance.reports/Oceanus_Maintenance_Sept07.pdfCisco adapter and modem is in RS-422 mode Complete KK Verify

Page 4

Completed by (Name/Signature): ____________________________________ Date: _________

Initials Action Notes/Discussion

KK Upgrade firmware as necessary (at least Rev 1.30) Complete

KK Replace 5V PSU power cable if needed N/A

Cisco Router Equipment Initials Action Notes/Discussion

KK Verify cables and connectors are snug and screwed in,

repair as needed

Complete

KK Verify serial cable is a CAB-530MT with Comtech

Cisco adapter and modem is in RS-422 mode

Complete

KK Verify that green connect light on serial card is lit when

modem is locked up

Complete

KK Verify router survives a power cycle and can route

traffic within 15 minutes of turning on while connected.

Notify techs that they may want to save router settings!!

Not Tested

Rack Equipment

Initials Action Notes/Discussion

KK Inspect rack conditions for proper rack gear cooling,

lighting, wiring, etc. (Earth station: Verify lights and

A/C work)

Complete

KK Check and record rack air conditioner set point Complete – room is cool – no

thermostat set point available

Overall

Initials Action Notes/Discussion

KK Take photos of ship/dome placement Complete

KK Check with ship techs/crew for overall impression of

equipment performance and possible problem areas

Complete

KK Locate spares kit (with help from techs) and verify all

SeaTel spares and one LNA exist. Note discrepancies.

Complete – No spares kit purchased –

no spares available

KK Verify spectrum analyzer shows proper picture of Tx

and Rx carriers

Complete

KK Comment on or correct previous maintenance report

issues that were pointed out

Complete – no open issues from

previous operational report

Page 5: HiSeasNet Maintenance Visit Report - sssg, whoisssg1.whoi.edu/hiseasnet/maintenance.reports/Oceanus_Maintenance_Sept07.pdfCisco adapter and modem is in RS-422 mode Complete KK Verify

Page 5

Completed by (Name/Signature): ____________________________________ Date: _________

Checklist Footnotes

Discussion

General Points

1. The antenna is one of the first 6006 models delivered to customers. The DAC is model # 2200 which uses

an L-Band interface instead of the 70 MHz interface found on the C-Band systems (model # 9797).

2. The bolts that attach the pedestal base plate to the radome base plate were loose, and the isolation springs

were not under any tension. This allowed the antenna to “rock” back and forth excessively, even in calm

weather, so the antenna was having unexpected difficulty tracking.

These bolts were tightened and Seatel was advised of the situation. The bolts will need to be checked at

every maintenance interval as part of the maintenance visit.

3. The antenna was mounted with the hatch oriented 90 degrees off from the usual “aft” position. This

orientation required a Home Flag Offset of 0191 to compensate.

4. The antenna was purchased without any spare components. They did purchase second LNB, which has a

different RX frequency range, which they can use when operating outside of the HiSeasNet network.

Page 6: HiSeasNet Maintenance Visit Report - sssg, whoisssg1.whoi.edu/hiseasnet/maintenance.reports/Oceanus_Maintenance_Sept07.pdfCisco adapter and modem is in RS-422 mode Complete KK Verify

Page 6

Completed by (Name/Signature): ____________________________________ Date: _________

Photos

R/V Oceanus

15-18 Sept ‘07

Radome Placement - #1

Page 7: HiSeasNet Maintenance Visit Report - sssg, whoisssg1.whoi.edu/hiseasnet/maintenance.reports/Oceanus_Maintenance_Sept07.pdfCisco adapter and modem is in RS-422 mode Complete KK Verify

Page 7

Completed by (Name/Signature): ____________________________________ Date: _________

R/V Oceanus

15-18 September ‘07

Radome Placement - #2

Page 8: HiSeasNet Maintenance Visit Report - sssg, whoisssg1.whoi.edu/hiseasnet/maintenance.reports/Oceanus_Maintenance_Sept07.pdfCisco adapter and modem is in RS-422 mode Complete KK Verify

Page 8

Completed by (Name/Signature): ____________________________________ Date: _________

R/V Oceanus

15-18 September ‘07

Radome Exterior-#1

Page 9: HiSeasNet Maintenance Visit Report - sssg, whoisssg1.whoi.edu/hiseasnet/maintenance.reports/Oceanus_Maintenance_Sept07.pdfCisco adapter and modem is in RS-422 mode Complete KK Verify

Page 9

Completed by (Name/Signature): ____________________________________ Date: _________

R/V Oceanus

15-18 September ‘07

Radome Exterior -#2

Page 10: HiSeasNet Maintenance Visit Report - sssg, whoisssg1.whoi.edu/hiseasnet/maintenance.reports/Oceanus_Maintenance_Sept07.pdfCisco adapter and modem is in RS-422 mode Complete KK Verify

Page 10

Completed by (Name/Signature): ____________________________________ Date: _________

R/V Oceanus

15-18 September ‘07

Radome Mounting Plate

Page 11: HiSeasNet Maintenance Visit Report - sssg, whoisssg1.whoi.edu/hiseasnet/maintenance.reports/Oceanus_Maintenance_Sept07.pdfCisco adapter and modem is in RS-422 mode Complete KK Verify

Page 11

Completed by (Name/Signature): ____________________________________ Date: _________

R/V Oceanus

15-18 September ‘07

Radome Interior

Page 12: HiSeasNet Maintenance Visit Report - sssg, whoisssg1.whoi.edu/hiseasnet/maintenance.reports/Oceanus_Maintenance_Sept07.pdfCisco adapter and modem is in RS-422 mode Complete KK Verify

Page 12

Completed by (Name/Signature): ____________________________________ Date: _________

R/V Oceanus

15-18 September ‘07

Radome Interior

Base Plate Bolts Tightened

Page 13: HiSeasNet Maintenance Visit Report - sssg, whoisssg1.whoi.edu/hiseasnet/maintenance.reports/Oceanus_Maintenance_Sept07.pdfCisco adapter and modem is in RS-422 mode Complete KK Verify

Page 13

Completed by (Name/Signature): ____________________________________ Date: _________

R/V Oceanus

15-18 September ‘07

Equipment Rack Front View

Page 14: HiSeasNet Maintenance Visit Report - sssg, whoisssg1.whoi.edu/hiseasnet/maintenance.reports/Oceanus_Maintenance_Sept07.pdfCisco adapter and modem is in RS-422 mode Complete KK Verify

Page 14

Completed by (Name/Signature): ____________________________________ Date: _________

R/V Oceanus

15-18 September ‘07

Equipment Rack Side View

Page 15: HiSeasNet Maintenance Visit Report - sssg, whoisssg1.whoi.edu/hiseasnet/maintenance.reports/Oceanus_Maintenance_Sept07.pdfCisco adapter and modem is in RS-422 mode Complete KK Verify

Page 15

Completed by (Name/Signature): ____________________________________ Date: _________

Final Equipment Configuration/Settings

HiSeasNet Satellite

Equipment

Configuration

Ship: R/V Oceanus

Date: 15 – 18 Sept ‘07 Location: Woods Hole, MA

Satellite: Satmex 5

Unit

Setting Description Setting Display

Setting Value Notes

SeaTel Digital Antenna

Controller (DAC)

Model DAC 2200 Antenna system is a model

4006-23 (8 Watt Ku-Band amplifier)

Serial Number 9606 Firmware Version 5.20 PCU Version 2.44a

AGC (Normal, On signal) 1943 Value when antenna is peaked up on signal

AGC (Normal, Off Signal) 1652 Value of noise when antenna is not on satellite

Latitude LAT 41 N Woods Hole, MA Longitude LON 70 W Woods Hole, MA

Heading HDG 63.6 Woods Hole, MA Satellite SAT 116.8 Satmex 5 satellite

Threshold THRS 1731 Antenna Controller locked to hub carrier

Intermediate Frequency L-Band Frequency

1250 MHz Shore-to-ship signal frequency to track

Baud Rate 30000 Tone OFF

Volt HORIZ FEC AUTO

NID 0000 Azimuth AZ 237.9 Woods Hole, MA

Elevation EL 23.1 Woods Hole, MA Relative Azimuth REL 174 Relative to bow of the ship

Elevation Trim EL TRIM -0006 In 1/10 of a degree

Page 16: HiSeasNet Maintenance Visit Report - sssg, whoisssg1.whoi.edu/hiseasnet/maintenance.reports/Oceanus_Maintenance_Sept07.pdfCisco adapter and modem is in RS-422 mode Complete KK Verify

Page 16

Completed by (Name/Signature): ____________________________________ Date: _________

Azimuth Trim AZ TRIM +0006 In 1/10 of a degree Auto Threshold AUTO

THRESH

0060 In counts

Elevation Step Size EL STEP

SIZE

0000

Azimuth Step Size AZ STEP

SIZE

0000

Step Integral STEP

INTEGRAL

0000

Search Increment SEARCH INC 0010

Search Limit SEARCH LIMIT

0100

Search Delay SEARCH DELAY

0030

Step Delay STEP DELAY N/A System Type SYSTEM

TYPE

0069 Controller set for auto search

upon power failure or system reset

Gyro Type GYRO TYPE 0002 Set for NMEA information string from ship's

gyrocompass Polarization Angle Type POLANG

TYPE

0072 Set for Automatic - used with

Linear Polarized feeds Polarization Offset POL OFFSET 0040 Adjusted with Loral for best

cross-pol performance Polarization Scale POL SCALE 0090 N/A - not used on circular

polarized antennas Azimuth Blackout Limit 1 AZ LIMIT 1 0000 Does not transmit or try to

search in the blackout zone Azimuth Blackout Limit 2 AZ LIMIT 2 0000 Does not transmit or try to

search in the blackout zone Azimuth Blackout Limit 3 AZ LIMIT 3 0000 Does not transmit or try to

search in the blackout zone Azimuth Blackout Limit 4 AZ LIMIT 4 0000 Does not transmit or try to

search in the blackout zone Azimuth Blackout Limit 5 AZ LIMIT 5 0000 Does not transmit or try to

search in the blackout zone Azimuth Blackout Limit 6 AZ LIMIT 6 0000 Does not transmit or try to

search in the blackout zone Transmit Polarity TX

POLARITY

0004

Home Flag Offset HFO 0191

Page 17: HiSeasNet Maintenance Visit Report - sssg, whoisssg1.whoi.edu/hiseasnet/maintenance.reports/Oceanus_Maintenance_Sept07.pdfCisco adapter and modem is in RS-422 mode Complete KK Verify

Page 17

Completed by (Name/Signature): ____________________________________ Date: _________

Codan Power Amplifier (PA) BUC

BUC Serial Number 6C40132F0081 BUC Serial number Converter Serial Number N/A No converter required

Transmit Frequency Tx Freq 14436.2750 Converted transmit center frequency

Receive Frequency Rx Freq 12136.0650 Converted receive center frequency

Transmit Output Level Attenuation

Tx Atten N/A TX output controlled by Comtech modem

Receive Attenuation Rx Atten N/A LNB Fault Control Faults: LNB N/A

SSPA Fault Control Faults: Fan N/A Fan Fault Control Faults: SSPA N/A

IF Impedence Impedence N/A PA State

TX On (RS232) TX On (RS232)

TX On (FSK) Transmit Default Last State

Compensation Frequency 14436 IF Comp Frequency 1014

LO Frequency 15450 MHz TX Alarm Threshold 0.0

Burst Power Threshold 0.0 Serial Interface 9600,8,N,1

Packet Protocol NDSATCOM Packet Address 1

Redundancy Mode NON Redundancy On/Off Line N/A

Comtech CDM-570L

Satellite Modem

(In CONFIG

menu)

Serial Number 072263306

Firmware 1.5.4 Modem Firmware Average Eb/No 7.0 dB Energy/Bit over noise (aka

Signal Quality) Framing Mode Unframed

Data Interface RS422 RTS/CTS Operation RTS/CTS Loop

TX FEC TPC

Page 18: HiSeasNet Maintenance Visit Report - sssg, whoisssg1.whoi.edu/hiseasnet/maintenance.reports/Oceanus_Maintenance_Sept07.pdfCisco adapter and modem is in RS-422 mode Complete KK Verify

Page 18

Completed by (Name/Signature): ____________________________________ Date: _________

Transmit Modulation TX:MOD Rate ¾ QPSK

TX Code Rate 3/4

Transmit Data Rate TX:DATA 64.000 kbps TX Symbol Rate 42.667 Ksym

TX IF Frequency 1013.7250 MHz TX RF Frequency 14436.2750 MHz

TX Output State RX-TX Inhibit Transmit Power Level TX:PWR -24.0 dBm Comtech modem is used to

control BUC output power level

Transmit Scrambler TX:SCRAM ON Transmit Clock TX:CLK Internal Modem set to Internal clocking

Transmit Spectrum Inversion

TX:TSI Inverted

TX Data Sense Normal

Receive Forward Error Correction

RX:FEC TPC

Receive Modulation RX:MOD QPSK ¾ QPSK Receive Code rate RX:Rate 3/4

Receive Data Rate RX:DATA 256.00 kbps Receive Symbol Rate RX: Sym 0170.667 Ksym

RX IF Frequency RX: IF 1386.0650 MHz RX RF Frequency RX: RF 12136.0650 MHz

Receive Demod Acquisition Sweep Range

RX:ACQ +/- 30 KHz

Receive Descrambler RX:DESC ON Receive Buffer RX:BUF Disabled

Receive Spectrum Inversion

RX:RSI Normal

Receive Data Sense Normal Eb/No Alarm Point RX:EbNo 2.0 dB

Frequency Reference Internal 10 MHz

TX FIFO Alarm MASKED G.703 – BPV ALARM MASKED

TX AIS Alarm MASKED AGC Alarm ACTIVE

Eb/No Alarm MASKED RX AIS Alarm MASKED

Buffer Alarm MASKED Reference Alarm MASKED

BUC Alarm ACTIVE LNB Alarm ACTIVE

Page 19: HiSeasNet Maintenance Visit Report - sssg, whoisssg1.whoi.edu/hiseasnet/maintenance.reports/Oceanus_Maintenance_Sept07.pdfCisco adapter and modem is in RS-422 mode Complete KK Verify

Page 19

Completed by (Name/Signature): ____________________________________ Date: _________

BUC M&C FSK Comms ON BUC RF Output ON

BUC FSK Address 01 BUC DC Power ON

BUC 10 MHz Reference ON BUC Current Alarm

Upper Limit 3500 mA Lower Limit 1000mA

BUC LO Frequency 15450 BUC Frequency Mix High Side

LNB DC Supply OFF LNB 10 MHz Reference OFF

LNB Current Alarm Upper limit 600mA

Lower Limit 010mA LNB LO Frequency 10750 MHz

LNB Frequency Mix Low Side Remote Control Local


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