Hey Troy, what brand is your bow graph? I have a Lowrance and I get a lot of noise when the TM is running. Tried the 2lb lead sheet between the transducer and TM but didn’t help. Put a ground wire between the negative posts of one of the TM and starter batteries and that didn’t help either. You having this problem?
its a helix...im using the humminbird transducer made for the trolling motor, it is already shielded.. I still get a little interference but nothing to bad.