5
Figure 2 Connection Diagram
Installation steps are as follows:
During the installation of GPS antenna, after fixing the GPS antenna,
connect TNC plug of GPS feed cable to transponder
’
s TNC socket.
Pay attention to the following points during the installation of GPS
antenna:
①
Each GPS antenna can only connect to one AIS device,
cannot be shared with other devices.
②
GPS antenna should be fixed to railing of platform above
bridge, and ensure no block by other buildings or metal things to
avoid affecting normal reception of GPS signal
③
GPS
antenna is a
360 ° omni-directional one, the angle with
horizon is 5°
～
90°.
Since GPS signals are very sensitive to noise and interference, so
GPS antenna should be as far away as possible from radar, laser and
other transmitting facilities and antenna.
④
The distance between GPS
antenna, VHF antenna and other
antennas should be 3M above.
