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A78, odd readings on fish finder
09-27-17, 11:40 PM
Post: #1
A78, odd readings on fish finder
I have an A78, and have what looks like rain drops when on fish finder mode.

Not sure if it's a settings issue or transducer installation problem.

I've attached a screen shot.

Thanks
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09-28-17, 03:04 PM
Post: #2
RE: A78, odd readings on fish finder
Welcome to the Raymarine Forum Reeltime,

It is possible that the symptom pictured within the MFD's screen snapshot is noise. Please click here to view a FAQ addressing how to determine whether the symptom is being caused by an external stimulus. If found to not be caused by an external stimulus, then the problem may be resulting from the fishfinder's gain setting being set too high and is in need of being reduced.
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