Guide :Boating : 200/50khz, 10/40deg, Plastic, Transom Mount, Depth, Temp

Sounder transducer? Hi expets, I have a Garmin 178C sounder/plotter which came with a duel transducer. An accident caused me to have the transducer replaced and I was assured it was a duel. It looked different to the previous one and they don't seem to have part numbers for me to confirm. When back on the water I could only switch to 200 or duel but not 50 so I presume it is a single frequency? Or is there something tricky I have to program into the unit? Or should I check the numbers on the cable or just buy a new one???

Posted by tomkneen on Sep 11, 2008

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