Question about Garmin GPSMAP 498C Sounder GPS Receiver
You need to check to see if the depth sounder transducer is connected or functioning. It might be turned off, the connectors may be bad or the transducer is bad. I don't have the 498 manual in front of me but I think there is a test function under the setup menu. I'd check my connections (the usual suspect) then run that.
Garmin tech support is pretty good/quick. So don;t be afraid to give them a call.
Posted on Aug 29, 2010
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Posted on Jan 02, 2017
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