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trolling motor intereference with lowrance depth finder #11366190 01/24/16 05:14 AM
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brewski Offline OP
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I have a minnkota trolling motor, 101lbs and lowrance electronics. I just replaced my starter battery with an AGM battery and now have trolling motor interference with my hds10 up front. How would I go about trouble shooting or narrowing down the cause/s? thanks,

randy

Re: trolling motor intereference with lowrance depth finder [Re: brewski] #11366243 01/24/16 07:08 AM
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Flippin-Out Offline
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Does your TM have a built in transducer? If so, are you using it, or one attached externally?

You changed NOTHING but the battery? No new wiring attachments or moved any wiring from one battery position to another? Going to AGM isn't going to cause interference - something else is doing it. Have you moved around any wiring in the boat? Tied any of the wiring into tight bundles? The interference is only when TM is running? Any speed, or only higher speed?

Re: trolling motor intereference with lowrance depth finder [Re: brewski] #11366707 01/24/16 05:16 PM
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I know you stated Lowrance but possibly try some things listed in the link to help.


http://www.humminbird.com/Category/Support/FAQ/Trolling-Motor-Interference/


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www.shut-up-and-fish.com
From *Sales, *Installation Services, and *On the shop floor Education & Instructional Tips
We have you covered here @ shut-up-and-fish for all of your Humminbird, Lowrance,
Garmin, Minn Kota & Motorguide needs plus much more - Call Now 972 822 9285
Re: trolling motor intereference with lowrance depth finder [Re: brewski] #11368044 01/25/16 03:26 AM
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brewski Offline OP
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flippin out thanks for your response. The information I shared is correct. All I did is change my starter battery from an interstate battery to a north star agm battery. No other changes at all. the transducer is not internal to the trolling motor it is the external type attached to the trolling motor. I have a degree in electronics so I understand the thoughts around what else has changed. And truly nothing else has changed except my move to the agm battery. thanks for your thoughts.

randy

Re: trolling motor intereference with lowrance depth finder [Re: brewski] #11368177 01/25/16 04:48 AM
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Use that electronics degree to know that AGM doesn't make interference when none existed previously. Something HAS changed - that electronics degree should tell you that. It's likely coincidental and unrelated that it happened now, burt something had to change - the laws of physics are fairly steady these days.

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