Rf Interferance

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Originally Posted by metalworx

Do you have on board charger that charges both cranking and trolling batteries? If so, try unhooking it from crank battery (whatever battery electronics are on) and see if you still have it. Had a buddy with same issues and the charger was point of entry for the rf. Just a thought!...............

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I'll try that.

Let us know if it works

My interference issues went away when I dumped my old motor guide and bought a new minKota.

your mileage may vary

Mo

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Originally Posted by metalworx

Let us know if it works

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it didn't work. Back to the drawing board?

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Originally Posted by mozingo1952

My interference issues went away when I dumped my old motor guide and bought a new minKota.

your mileage may vary

Mo

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I do have an old Minnkota Maxxum. I doesn't have the digital maximizer.

And I reiterate ...

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Originally Posted by rnvinc

First you need to determine if the RFI is migrating into the power supply or the xducer cable ...

This can be diagnosed by removing the xducer from the TM completely and testing the xducer in the water away from the TM ...

If the interference goes away ... The RFI is getting into the xducer or its cable ...
If the interference is still present ... the RFI is getting into the power supply ...

Rickie

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If you fish Finder is under warranty need to send it back to H B,get you money back buy other type and try,are you will have several hundred dollar paper weight, I wish I had done that with mind,don't need any more paper weights.

Well here's an update. I unhooked the onboard charger and it did help. I also moved the transducer away from the trolling motor. And the interferance went away.. So it's definantly coming from the trolling motor..so now using the trolling motor without the transducer is not an option. so then I started playing with various rf chokes and I ended up putting 2 on the transducer and one on the 360. With the sensitivity set at 9 there is no visible interferance. But if I go higher you can see it. So right now it will work but it's not a 100%. Still got some work to do. But right now it's useable. I talked to a buddy that had an older minnkota maxxum. And he was telling me that he had the same issues with his maxxum. 10yrs ago. So maybe I need a different trolling motor. The maxxum I have does not have an internal ground.I will probably upgrade it this summer. But right now it's time to fish.

Do you have the xducer cable ran like this along the TM bracket ...??

http://i477.photobucket.com/albums/r...psor6eej7w.jpg

Rickie

I have my 360 transducer cable and my 1199 transducer cable ran together.
http://i580.photobucket.com/albums/s...ps84ff6f5d.jpg