Shakesphere makes good antennas for marine use. Just google (Shakesphere
Antenna) and that should get you to a link to their site. Rollie KD0FGX


"Nigel Molesworth" wrote in message
...
A little OT for this group, but I figure you guys are the experts!

I've got a boat, it has an VHF FM Car Radio with a car aerial. The first
problem is that there is no ground plane, the boat is GRP. It is also
lying
horizontally, it is too long to be vertical.

I want to replace the aerial something a bit more suitable. Modern cars
seem
to have much shorter aerials, so is there a coil involved?

Any suggestions on making or buying a replacement?

BTW, the radio has a DIN antenna socket, so 150 Ohms I think?

--
Nigel M
G1NDM (a long time ago)