https://www.humminbird.com/Products/XTM-9-WIDE-DI-20-T/This is the one you want and yes it is worth it. It has better shielding and made specifically for trolling motors. Is your current setup using the stock Di transducer with the us2 transducer with the y cable? If so Humminbird does not recommend this setup. Just use the 2d from the DI tranaducer
Currently it’s only running the US2 transducer. The transducer that came in the box is sitting on my bar at the house. The US2 transducer only gives me the one view. As soon as I push the power button on the Ultrex, the interference starts.
It just kind of hacks me off that Johnson outdoors wants a to squeeze every little cent out of you. Maybe they should mention this prior to purchase or offer a free swap at a local warranty center instead of having to send it off.