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Posting a reply to: Re: Side Imaging pictures..

Muskie Fishing -> Muskie Boats and Motors

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Chemi

Posted 3/14/2019 12:59 PM (#933060 - in reply to #932947)
Subject: Re: Side Imaging pictures..

25homes - 3/13/2019 3:50 PM

Jerry Newman - 3/12/2019 6:58 PM

Maybe the wavy bottom is the boat going up and down from a little chop on the water...

I would maybe think that but the image to the right isn't wavy at all...so Im thinking its actually a wavy bottom....only wavy of left side not right side

I'm thinking propeller blade interference, from the propeller actually reflecting the outgoing sonar pulse with perfect periodicity? You'd only see that on one side... and the "shadow" (the dark bars which we see here) would extend all the way on that side. And since the blade is spinning and the sonar pulsing, it wouldn't be constant, but periodic.

If you see it again, try raising the motor higher and see if it goes away.

Edited by Chemi 3/14/2019 1:02 PM