I know that on Lowrance/Eagle web site that they have a section that you can use to learn each fish finder that they sell. The other manufactuers may have something as well.

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I know that on Lowrance/Eagle web site that they have a section that you can use to learn each fish finder that they sell. The other manufactuers may have something as well.
I`ve got the eagle fishmark320 and down loaded the depth finder on my computer and it works just like the real one so you can get use to the controls
