Sea Tel ST144-21 - Page 9

Table of Contents
ix
9.1.2. Inclined Orbit Search Pattern ................................................................................................................................................. 9-2
9.1.3. No Gyro Search Pattern .............................................................................................................................................................. 9-3
9.2. CHANGING THE SEARCH PARAMETERS ............................................................................................................................................................ 9-4
9.2.1. AUTO THRES ...................................................................................................................................................................................... 9-4
9.2.2. EL STEP SIZE ..................................................................................................................................................................................... 9-4
9.2.3. AZ STEP SIZE .................................................................................................................................................................................... 9-4
9.2.4. STEP INTEGRAL ............................................................................................................................................................................... 9-4
9.2.5. SEARCH INC ...................................................................................................................................................................................... 9-5
9.2.6. SEARCH LIMIT ................................................................................................................................................................................. 9-5
9.2.7. SEARCH DELAY ................................................................................................................................................................................. 9-5
9.2.8. SWEEP INC ......................................................................................................................................................................................... 9-5
9.3. SAVE NEW PARAMETERS ........................................................................................................................................................................... 9-5
10. SETUP – BLOCKAGE & RF RADIATION HAZARD ZONES .............................................................................................. 10-1
10.1. RADIATION HAZARD AND BLOCKAGE MAPPING (AZ LIMIT PARAMETERS) ..................................................................................... 10-1
11. SETUP ............................................................................................................................................................................................................... 11-1
11.1. OPERATOR SETTINGS ........................................................................................................................................................................................ 11-1
11.2. OPTIMIZING TARGETING (AUTO TRIM) ...................................................................................................................................................... 11-1
11.3. OPTIMIZING TARGETING (MANUALLY) ....................................................................................................................................................... 11-1
11.4. RADIATION HAZARD AND BLOCKAGE MAPPING (AZ LIMIT PARAMETERS) ..................................................................................... 11-1
11.5. TX POLARITY SETUP ......................................................................................................................................................................................... 11-2
11.6. TRACK DISP ..................................................................................................................................................................................................... 11-2
12. FUNCTIONAL TESTING ....................................................................................................................................................................... 12-1
12.1. ACU / ANTENNA SYSTEM CHECK ................................................................................................................................................................. 12-1
12.2. LATITUDE/LONGITUDE AUTO-UPDATE CHECK .......................................................................................................................................... 12-1
12.3. SHIP HEADING – GYRO COMPASS FOLLOWING CHECK ........................................................................................................................... 12-1
12.4. AZIMUTH & ELEVATION DRIVE...................................................................................................................................................................... 12-1
12.5. FOUR QUADRANT TRACKING TEST ............................................................................................................................................................... 12-2
12.6. BLOCKAGE SIMULATION TEST ........................................................................................................................................................................ 12-2
13. MAINTENANCE AND TROUBLESHOOTING............................................................................................................................ 13-1
13.1. WARRANTY INFORMATION ............................................................................................................................................................................. 13-1
13.2. RECOMMENDED PREVENTIVE MAINTENANCE ............................................................................................................................................ 13-1
13.2.1. Check ACU Parameters ............................................................................................................................................................ 13-1
13.2.2. Latitude/Longitude Auto-Update check ......................................................................................................................... 13-1
13.2.3. Heading Following ....................................................................................................................................................................... 13-1
13.2.4. Azimuth & Elevation Drive ...................................................................................................................................................... 13-2
13.2.5. Test Tracking .................................................................................................................................................................................. 13-2
13.2.6. Visual Inspection - Radome & Pedestal ....................................................................................................................... 13-2
13.2.7. Mechanical Checks ..................................................................................................................................................................... 13-2
13.2.8. Check Balance ................................................................................................................................................................................ 13-2
13.2.9. Observe Antenna Initialization ............................................................................................................................................ 13-2
13.3. 400MHZ MODEM CONFIGURATION ........................................................................................................................................................... 13-3
13.4. 400 MHZ LED INDICATORS .......................................................................................................................................................................... 13-4
13.5. 400 MHZ MODEM SIGNALS.......................................................................................................................................................................... 13-4
13.5.1. Pedestal M&C ................................................................................................................................................................................. 13-4
13.5.2. Radio M&C ....................................................................................................................................................................................... 13-5
13.5.3. Channel Identification .............................................................................................................................................................. 13-5
13.6. TROUBLESHOOTING 400MHZ MODEM COMMUNICATION FAULTS .................................................................................................. 13-6