In article Y3l6c.35073$1p.540919@attbi_s54,
Jay Honeck wrote:

Good ideas. And you're right -- the Apollo is probably a loran antenna.

They make a GPS antenna with the same footprint for LORAN-GPS upgrades.
If you need a GPS antenna it's nicer than a patch, and the same price as
the regular ones (ie shockingly expensive).

--
Ben Jackson

http://www.ben.com/