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Old 10-01-2011, 07:12 AM
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Originally Posted by rickmacc View Post
I had the same problem and discovered that my transducer had just come unlocked in the bracket so that it was swiveling up while underway. When I was idling, I could mark bottom no problem but, at speed, it would mark incorrect depths due to the fact that the transducer was tilting up and firing the beam out behind the boat.

Good point.....I forgot all about that one..and it is very common.
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