Re: Christmas GPS $600.00 Budget
The units most likely have an internal gps antenna and won't need that mushroom antenna. The units that measure depth will come with another transducer. If you have a depth sounder already, I really don't see the major benefit for installing the chartplotter's. I believe that chartplotters that come with depth transducers typically are for finding fish. I would save $$ by buying a plotter without that feature but then I don't fish.
Sailing out of Rock Creek, Chesapeake Bay
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