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post #1 of Old 06-27-2009 Thread Starter
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Unhappy Raymarine C80 GPS problem

We're trying to network a RayStar 125 GPS receiver to a C80 MFD via seatalk. The RS125 indicates it has a fix (green LED flashing at 4s intervals), but the C80 can't see it. Also, the C80 is no longer receiving depth and speed from a networked tri-data, which worked fine prior to installing the GPS.

The C80 GPS status screen shows nothing, as if there were no GPS connected. The external interface/seatalk diagnostic screen shows a large number of "erroneous sentences".

Thoughts? I'm thinking a bad GPS or a wiring problem--but I'd appreciate any thoughts or experiences before I go ripping things apart.
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