360 interference

I am getting significant interference on my screen when the TM is under power. How can I alleviate this?


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Under power with interference Attachment 289170

No power
Attachment 289171


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Where are you pulling 360 power from? Where are you pulling Helix power from?

Both the 360 and Helix run off the cranking battery


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Do you have an on board charger hooked to cranking and trolling batteries?

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Originally Posted by jaoeyp

Do you have an on board charger hooked to cranking and trolling batteries?

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Yes sir


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Try unhooking your charger from the cranking batteries. Sometimes that can be a path for interference. If that doesn't work, make sure your Ethernet chord from the 360 is well isolated from the trolling motor power chords.

Quote:

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Originally Posted by jaoeyp

Try unhooking your charger from the cranking batteries. Sometimes that can be a path for interference. If that doesn't work, make sure your Ethernet chord from the 360 is well isolated from the trolling motor power chords.

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First want to say I appreciate you helping me out.

I believe you are on to something. This boat is new and was rigged by the dealer last August. The boat is equipped with a three bank charger but the dealer forgot to connect the leads from the charger to the two TM batteries. I discovered this two weeks ago (yea - those batteries lasted many trips without a charge) and connected the leads. I didn’t note any interference till last weekend and today. But surely there is someway to stop the interference with the charger connected??


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On my boat.I didn't have interference from the original charger.my charger went bad.I replaced it with another name brand charger.I got interference then.this charger has in line fuses,that I remove while out on the water.

Same reason I use a two bank on the trolling batteries only. Figure motor battery gets charged enough while running. If in doubt, I charge before fishing with a separate charger.