Discussion in 'Mid-Size Boats' started by JohnSn, Dec 21, 2018.
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The mechanical connection to the arch is better seen here
Ahhh, got it! clever design - my radar mast mounts on the swim platform just outboard of the locker lid, with a brace to the pushpit rail.
I am sure if you look under where the arch bolts under the fiberglass you will find a ground
wire and saw a ground wire on my rear starboard arch.
Are you saying you have a ground wire from the starboard arch? Thats what I have. But, mine is clearly not factory wiring. As I understand it, no one else has one.
I did disconnect the arch ground wire and tested the performance of the radio and radar. They both worked fine. So the ground wire doesnt appear to be required as a ground plane. Nor is it needed for lightning protection. So, it looks like a bad idea to have the arch ground wire.
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