Question about Eagle Fisheasy 320c Fishfinder

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Repeated transponder issues with the lowrance 320c fishfinder

I have a lowrance 320c fishfinder and have had to replace the transponder each of the last two years because it just stops functioning in every way possible to the point where it just stops picking up bottom and fish period. Each of the 2 times I replaced the the transponder the sonar works great for 1 fishing season and then it craps out. Again (3rd time in 3 years) I am out early in the fishing season here and the same thing. I don't believe it is due to other electronics or interference in the boat because when I replace the transponder it works great for an entire fishing season. It is not the main head unit because I have tried other 320c units on my boat each of the last 2 years to confirm it is the transponder.

Any thoughts?

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Reading the manual it does say that there is a temperature range for these. I"m not sure where you live but it might be cold enough that it is damaging the transducer in the off winter months.

Posted on Jun 01, 2009

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