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FB 250+ Installation Manual
Page 12 of 33
2.1.3 Interference
The antenna unit must be mounted as far as possible away from the ship’s radars, MF/HF
antennas, communication/navigation antennas, VSAT system and any high power radio
transmitter (including other Inmarsat-based system).
As for a ship’s radar (see below), it is difficult to provide the exact minimum distance between
a radar and the antenna unit due to different type of radars in terms of power, radiation
pattern and operating frequency band.
The antenna unit is recommended to be at least 5-meter away from the radar position and at
least
±
15 º from the radar’s vertical beam.
Minimum Radar Distance
5.0m
+15º
-15º
Antenna Unit
Antenna Unit