Results 1 to 2 of 2

Thread: Need help with TM Interference with Lowrance and Minnkota (Universal Sonar 2)

  1. #1
    Join Date
    Feb 2009
    Lake Monticello, VA

    Default Need help with TM Interference with Lowrance and Minnkota (Universal Sonar 2)

    Here is the short and skinny of my problem. Ever since I bought my boat I've had electrical interference when I push the button on the trolling motor. I have a lowrance 520c on the bow and a MinnKota 24v Maxxum pro with Universal Sonar 2 on the bow.

    I'm currently using the U2 Sonar transducer and still getting interference when I tap the button..enough so it blacks out my screen. Does anyone have any idea how to eliminate this?

    The sonar is running from the starting battery and the wires are run down different sides of the boat.
    2010 VAO Fling Before Spring Overall Winner

    2010 LAPR/VAO 150 Series Champion
    Walmart BFL All-American Qualifier

  2. #2
    Join Date
    Jan 2008
    202 Norfolk Dr Ruther Glen VA 22546


    Hummingbird developed a solution to that problem for their electronics but it figures that Lowrance is way behind on this! I have the same problem Mark with my Minn Kota and lowrance. Taking a jumper wire and running it from the neg post of the trolling motor battery to the neg post of the cranking battery will get rid of a lot of it but not all. The next thing to do is to run an additional wire from the trolling motor head (Via the clamp that holds the transducer on) to the neg side of the trolling motor wiring where it plugs in at the bow of the boat. The last thing to do is to NOT run the transducer cable down the trolling motor wiring sleeve. You want to keep the transducer wire as far away from the trolling motor wiring as you can.
    2010 VAO Polar Bear Overall Winner
    2010 VAO Polar Bear Big Striper

Similar Threads

  1. Minnkota Talon
    By bassin in forum Minn Kota
    Replies: 16
    Last Post: 04-11-2012, 10:17 AM
  2. Help with Lowrance/ Universal Sonar 2
    By offbelew27 in forum Minn Kota
    Replies: 0
    Last Post: 02-11-2011, 07:10 PM
  3. Understanding How to Read Your Fishfinder & Sonar Readings
    By Brian in forum Fishing Tips & Articles
    Replies: 1
    Last Post: 10-06-2010, 09:43 PM
  4. Lowrance's sonar revolution: The early days
    By Brian in forum Bassmaster News, Information & Blog Updates
    Replies: 0
    Last Post: 05-27-2010, 12:01 AM
  5. minnkota certified
    By ac doc in forum General Board
    Replies: 1
    Last Post: 03-09-2009, 09:25 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts