I'ts an excellant unit has dual freq. tranducer that costs a bunch to replace so make sure it will kick up if it hits something, unit works better in manual mode than automatic as you can tweek it in pretty good, friend of mine has one and I set his up for him, he had the Navionics card and it was one of the first mapping units that I have had experience with, we pounded the fish on the Cumberland river, it paints a great picture on the screen..........Doc
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