Likes Likes:  0
Thanks Thanks:  0
HaHa HaHa:  0
Results 1 to 7 of 7

Thread: Trolling motor interference with my new Garmin

  1. #1
    Join Date
    Apr 2008
    Location
    Lafayette, IN
    Posts
    607
    Post Thanks / Like

    Default Trolling motor interference with my new Garmin


    Went for a second test run today and took my trolling motor this time. When I turn it on I get interference right away. My boat is is small and it's all connected to the same battery. I moved the transducer wire as far away from the trolling motor and and couldn't get it to clear up. Below is a picture of my setup and a picture of the interference on the sonar you can see where I turn the motor on and then turned it off. How can I fix this?. Name:  IMG_20190316_154007779_HDR.jpeg
Views: 3945
Size:  130.2 KBName:  IMG_20190316_171240473_HDR.jpeg
Views: 3488
Size:  189.7 KBName:  IMG_20190316_171301594.jpeg
Views: 4201
Size:  111.6 KB

    Sent from my moto g(6) using Tapatalk

  2. #2
    cevans's Avatar
    cevans is offline Crappie.com Legend * Crappie.com Supporter
    Join Date
    May 2010
    Location
    Southern Indiana
    Posts
    5,420
    Post Thanks / Like

    Default

    Here is a link to explain using a ferrite ring for getting rid of interference. Ferrite Ring source/info. You might need to wrap your depth finder power wire in one or transducer wire even.

    PROUD MEMBER OF TEAM GEEZER
    authorized by: Billbob and "G"

  3. #3
    Join Date
    Apr 2008
    Location
    Lafayette, IN
    Posts
    607
    Post Thanks / Like

    Default

    Is this supposed to help interference? I didn't know what it was and I haven't put it on there. Name:  IMG_20190316_202033071.jpeg
Views: 3881
Size:  64.9 KB

    Sent from my moto g(6) using Tapatalk

  4. #4
    cevans's Avatar
    cevans is offline Crappie.com Legend * Crappie.com Supporter
    Join Date
    May 2010
    Location
    Southern Indiana
    Posts
    5,420
    Post Thanks / Like

    Default

    Yes, this is a Ferrite ring clamp on model. Put it on and it might clear up your interference. Read the link to learn also. Be sure to give the cable a wrap thru it.

    PROUD MEMBER OF TEAM GEEZER
    authorized by: Billbob and "G"

  5. #5
    Join Date
    Jan 2019
    Location
    LEITCHFIELD
    Posts
    237
    Post Thanks / Like

    Default

    Quote Originally Posted by 10point View Post
    Went for a second test run today and took my trolling motor this time. When I turn it on I get interference right away. My boat is is small and it's all connected to the same battery. I moved the transducer wire as far away from the trolling motor and and couldn't get it to clear up. Below is a picture of my setup and a picture of the interference on the sonar you can see where I turn the motor on and then turned it off. How can I fix this?. Name:  IMG_20190316_154007779_HDR.jpeg
Views: 3945
Size:  130.2 KBName:  IMG_20190316_171240473_HDR.jpeg
Views: 3488
Size:  189.7 KBName:  IMG_20190316_171301594.jpeg
Views: 4201
Size:  111.6 KB

    Sent from my moto g(6) using Tapatalk
    I had the same issue only mine was worse than what you have in the picture. I got mine cleared up completely but it was a chore. I did the following steps, it got a little better each time;
    1. Made sure my transduce cable wasn't coiled up and ran a twisted pair power cable to the garmin unit. ( helped slightly)
    2. Added a ferite coil to the the trolling motor power cable and the garmin power cable. ( again helped a little)
    3. Added a ground wire to the trolling motor skag. ( Helped)
    4. Disconnected my 3 bank charger from the starting battery ( interference gone)

    I bet if you use a different power source for you Garmin that your problem goes away. Your interference doesnt look that bad

  6. #6
    Join Date
    Apr 2008
    Location
    Lafayette, IN
    Posts
    607
    Post Thanks / Like

    Default

    I'm going to try using the battery from my portable ice fishing unit.

    Sent from my moto g(6) using Tapatalk

  7. #7
    Join Date
    Nov 2017
    Location
    Tn
    Posts
    44
    Post Thanks / Like

    Default

    1. I ran separate power and ground from my starting battery- helped very little
    2. I ran from my ground wire to unit an added ground and ran to skeg on trolling motor driller and chipped paint around the hole-helped some.

    But still have interference. Might try taking 3rd bank from charger off starting battery next time out!

Tags for this Thread

Posting Permissions

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

BACK TO TOP