COBHAM SEA TEL 9711IMA-70, Руководство по установке

Страница: 121 / 178

9711IMA-70 9711IMA-70 Technical Specifications
17-9
17.4.2. Antenna Transmit & Receive IF Coax Cables (Customer Furnished)
Due to the dB losses across the length of the RF coaxes at L-Band, Sea Tel recommends the following 50
ohm coax cable types (and their equivalent conductor size) for our standard pedestal installations:
Run Length Coax Type Conductor Size
up to 35 ft RG-58 20 AWG
up to 75 ft RG-8 or LMR-300 18 AWG
up to 150 ft RG-213, RG214 or LMR-400 14 AWG
up to 200 ft LDF4-50 Heliax or LMR-500 10 AWG
Up to 300 ft LMR-600 6 AWG
For runs longer that 300 feet, Sea Tel recommends Single-mode Fiber Optic Cables with Fiber Optic
converters.
17.4.3. Multi-conductor Cables (Customer Furnished)
Due to the voltage losses across the multi-conductor cables, Sea Tel recommends the following wire
gauge for the AC & DC multi-conductor cables used in our standard pedestal installations:
Run Length Conductor Size
up to 50 ft 20 AWG (0.8 mm)
up to 100 ft 18 AWG (1.0 mm)
up to 150 ft 16 AWG (1.3 mm)
up to 250 ft 14 AWG (1.6 mm)
Up to 350 ft 12 AWG (2.0 mm)
17.4.4. 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
17.4.5. AC Power Cable (Optional Marine Air Conditioner)
Voltage: 220 volts AC
Breaker Required 20 Amp
Full Load Amperage: 5.4 Amps
17.4.6. 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
EAR Controlled - ECCN EAR99