KVH Industries TracPhone FB250 Installation Manual page 23

Chapter 2: Installing the system
2.2.3 Interference
Overview
The antenna must be mounted as far away as possible from the ship's radar
and high power radio transmitters (including other Inmarsat based systems),
because they may compromise the antenna performance. RF emission from
radars might actually damage the antenna.
The TracPhone antenna itself may also interfere with other radio systems.
Especially other Inmarsat systems and GPS receivers with poor frequency
discrimination are vulnerable to the radiation generated by the TracPhone
antennas.
10 Placing the antenna