Once upon a time (1999ish) I switched from an internal antenna to an external
antenna on my 17' Boston Whaler Montauk center console. Same GPS. The
signal strength bars were noticiably better with the external antenna. A couple
of years later I bought a new GPS. I spent a few extra bucks for the external
antenna version.

Maybe it was just that the external antenna was a better antenna. Maybe it was
the metal rail over the top of the windshield.


Chuck


"Butch Davis" wrote in message ink.net...
As of late this month Lowrance LMS-337C DF GPS will be available as an LMS-339C DF IGPS with internal antenna. It is recommended
fro use on open cockpit or center console boats.

For cost and ease of installation reasons I'd prefer to use an internal antenna unit. Seems to me that it would make little to no
difference in satellite reception on my center console boat.

Do you agree?

Thanks,
Butch