I talked to Lowrance at the end of last week and they told me that it may be interfereing with the Humminbird I have on the console. They told me to turn off the Humminbird and try the Lowrance on the bow by itself. It seem to fix the problem. Although it seems strange to me that my buddy, whom I bought both units from, could have the exact same setup as myself with the exact units and be able to use them at the same time. I have been on several boats where people run both sonars and have no problems why me?
To answer your question I have a new skimmer on the trolling motor. I get a bouncing read if the console unit is on. If I turn off the console unit it works perfectly. The trolling motor doesn’t seem to effect it.