THIS MIGHT HELP SOMEONE!

I am running a Helix 9 on the trolling motor and a Mega 10 on the console. Anyway I went fishing there Monday evening. Notice when the trolling motor came on look like I was getting Interference on my 9. This hasn't happen before. It look like the screen was cross talking with another unit. Anyway the markings was Vertical but they came up from the bottom to look like to me they stop at the Thermocline and wasn't coming all the way up the screen. I started looking at some of the settings. This lake was deeper than what I had been fishing so I adjust the maxium depth a little more and the Helix 9 went back doing the right thing. It's funny how sometimes just a little adjustment will help a unit. Want to share this might help someone out with the same type of problem.
LittleJohn