GPS antenna placement

Old 11-26-2003, 01:59 PM
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Default GPS antenna placement

I just received my Navman 5100 GPS and am gearing up to install it. The instructions say..."do not mount the antenna within 10 ft of a radio transmitter antenna."

I would think that on most boats under 30 ft (mine is an 18 1/2 ft Sea Hunt) it would be hard to do this and in fact probably doesn't happen most of the time. My question is...what is the down side of having your GPS and VHF antennas close to each other?
arete1 is offline  
Old 11-26-2003, 03:44 PM
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Default GPS antenna placement

My GPS and VHF antennas are about 3 feet apart without problems.

I have a Uniden VHF, S/H CP150c GPS/Chartplotter and during the transition I also used my Garmin GPS III at the same time.

There have been a few other posts on this and I believe the concensus seems to be my results are normal. The only problem to really avoid is shadowing the the antenna with a metal surface or radar array, or putting the GPS in the same plane as the radar signal.
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