System information

9497B-20 Technical Specifications 9497B-20 Ku-Band TVRO
8-4
8.8. Cables
8.8.1. Antenna Control Cable (Provided from ACU-MUX)
RS-422 Pedestal Interface
Type Shielded Twisted Pairs
Number of wires
Wire Gauge 24 AWG or larger
Communications Parameters: 9600 Baud, 8 bits, No parity
Interface Protocol: RS-422
Interface Connector: DE-9P
8.8.2. Antenna L-Band TVRO IF Coax Cables (Customer Furnished)
2, 4 or 6 cables are required dependant upon which feed/LNB configuration your antenna is fitted with.
Due to the dB losses across the length of the RF coaxes at L-Band, Sea Tel recommends the following 75
ohm coax cable types (and their equivalent conductor size) for our standard pedestal installations:
Run Length Coax Type Conductor Size
up to 75 ft LMR-300-75 18 AWG
up to 150 ft RG-11 or LMR-400-75 14 AWG
up to 200 ft LDF4-75 Heliax 10 AWG
Up to 300 ft LMR-600-75 6 AWG
For runs longer that 300 feet, Sea Tel recommends Single-mode Fiber Optic Cables with Fiber Optic
converters.
8.8.3. AC Power Cable (Pedestal & Rf Equipment)
Voltage: 110 or 220 volts AC (220 VAC Recommended)
Pedestal Power: 100 VA MAX
RF Equipment Power: 1500 VA MAX
8.8.4. Gyro Compass Interface Cable (Customer Furnished)
Type: Multi-conductor, Shielded
Number of wires 4 Conductors for Step-By-Step Gyro, 5 Conductors for Synchro
Wire Gauge: see Multi-conductor Cables spec above
Insulation: 600 VAC
8.8.5. Fiber Optic Transmitter (CFE Optional)
Model: Ortel Model 3112A
Frequency Range: 950-2050 MHz
Noise Figure: 45 dB
Impedance: 75 ohm
Connectors:
RF Type F
Fiber FC/APC "Tight Fit”