Assuming that you have a separate GPS antenna and the RL80C hsb2 Display gets its GPS information over a seatalk network, the problem is most likely with the GPS antenna. The most likely solution is to replace the antenna.

I have seen these antennas last 6 to 7 years and in some cases longer. They tend to fail with no warning and usually when you need them the most.

If your Raymarine instrument(s) receive GPS info via a NMEA connection and the host GPS instrument is getting a GPS fix, you need to check all wiring connections and be very suspicious of any NMEA multiplexer.


Best,

Bill
s/v BeBe SM2, #387
Currently Malaysia