Before you can catch fish, you've got to find them. Join our electronics sharpie, boats.com senior editor Lenny Rudow, as he explains the basics of using a fishfinder and what to look for on-screen. He'll also show you how to "peak" the transducer, to maximize performance. And when you need to turn off those auto functions, and dial it in manually.

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Want to learn more about fishfinders and how to use them? Check out these articles on boats.com:

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