Anyone have a Humminbird USB Cable?

[WeekendWarrior]

I am having interference issues (noise on the screen). I added a dedicated fishfinder battery last summer and isolated the cables, but it still seems to be having problems. I also don't get any good readings at faster speeds. It may be a transducer placement issue, but I need to spend some more time diagnosing the problem (i.e., main motor interference, trolling motor interference, cavitation interference due to placement, etc.) It is my first fish finder and I bought it used, so I am hoping that there is not a problem with the unit/transducer. But being a rookie, I just have to feel my way through it I guess.

I have tried resetting the unit multiple times, but that hasn't seemed to help. Like I said, the first thing they recommended was to update the software. I am sure it has never been updated, so I thought I would start there.

Thanks for the response and I am open to any other suggestions/assistance!
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