Tips for installing a GPS on your boat

The CPS-ECP Boating Resource

GPS installation

The most critical part of a GPS installation is the antenna. It should be installed where it can get a clear view of the sky and not be in the shadow of obstructions. The antenna should be in an area where it will be minimally affected by multi-pathing; that is receiving unwanted reflected signals from the structure of your boat. However, you should not mount a GPS antenna on top of a sailboat’s mast. The rocking of the boat is accentuated at the top of the mast which makes it an undesirable position for the antenna because the GPS will move as the vessel heels. There is a strong possibility that the antenna of your GPS or your VHF receiver can receive interference if they are in the path of your radar’s transmission beam. In some installations, the powerful pulses from the radar can cause severe problems and interfere with…

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