I recently bought a Raymarine RC530 Chartplotter. It didn't come with a GPS antenna so I am now looking to track one down. Has anyone had any luck with an aftermarket or different manufacturers antenna/receiver? The Raymarine antennas seem to go for about $300+ which is a little steep for an antenna.
How about something like this? Marine GPS Receiver FOR Raymarine Chartplotter 425 C70 | eBay