After this thread, I'm thinking of getting a new one. Temp is good, depth is good other than an occasional hickup which quickly resets itself but the fishfinder always brings up fish that are not there. Unless I have been surrounded by fish everytime I go out and can't catch any of them!! which could be possible. I think the transducer is about 7yrs old. It came off an older Garmin unit and I just upgraded to a 498 and kept the same transducer which their tech group said would be fine.
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