Humminbird 858cdi Depth Reading Problem

[KAG]

Ok read posts, read the on line manual....still have an issue.

Ok installed the 858 yesterday afternoon, on the lake today. When I come up to speed the depth jumps all over the place, when I slow down it reads fine. Played with various settings and still present. There is poor 2d readings as well.

Took a photo of how I have it mounted, I loosed up the screws adjusting it and have not straightened it back up yet.


Thoughts......



I also ordered one of these transducer mounting plates so I stop putting holes in my boat