Intellian v80G, Installation And Operation User Manual

Page: 23 / 149

23
INSTALLING THE ANTENNA
•
System Cables
Before installing the system cables, you need to take the following points into
consideration.
1. All cables need to be well secured and protected from physical damage and
exposure to heat and humidity.
2. Cables with a tight bend radius should be avoided.
3. Where a cable passes through an exposed bulkhead or deck head, a watertight
gland or swan neck tube should be used.
• RF Cable (Customer Supplied)
Due to signal losses across the length of RF coax on L-Band, Intellian recommends
the following 50 ohm coax cable types for standard system installations. For
cables that run longer than 150 meters, please consult Intellian Technologies.
Coaxial Cable
Type Attenuation in
dB/100M Attenuation in
dB/M Recommended
Max Cable Length
LMR300 30.3 0.303 35M
LMR400 19.6 0.196 60M
LMR500 15.9 0.159 80M
LMR600 12.8 0.128 100M
LMR900 8.6 0.086 150M
LMR1200 6.5 0.065 200M
Recommended
RF Cables
Power Requirement
Intellian v80G has been designed to work on a vessel’s power supply rated at 100-240 V AC.
• Gyro Compass GPS Interface Cable (Customer Supplied)
Type Multi-conductor, Shielded
Number of cores
2 conductors for NMEA 0183,
5 conductors for NMEA 2000