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I have a Garmin GPS/fish finder on my boat and after 8 years I still have NO CLUE how any of it works... I use it for depth and coming in in the fog... thats it. It always shows fish icons which I'm convinced is all mis-reads of seaweed clumps... I have never found fish with it. I 'm a tech moron. I read the directions but after a while it sounds like blah blah... (did I mention I'm a surfcaster that just happens to also own a boat? hahaha)
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