I just installed a 522C on my consol, also have an Eagle 480 on the dash. My third depth finder is a X67C that is mounted on the bow. All three transducers are mounted on the transom side by side. Since installing the 522C on the dash I've had major operating problems with all of the units. The 67C occasionally looses track of the bottom and runs the depth all the way up to 500 feet. The Eagle does the same but only when the depth is displayed on the screen and in automatic depth control. The 522C seems to operate fine but the sensitivity control isn't as accurate as I've seen on other boats I've been in and it doesn't seem to locate fish and baitfish as well as the old Eagle black and white.

I'm thinking I have a interference problem between these units but am not sure. Looking for advise on what to try changing.
Thanks.