Thread: Im tired of...

What model is the 7? Is it 2d, Di, or Si?


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Its a di combo

Originally Posted by shortdraw

Its a di combo

With the DI units there are transducers specifically designed for the trolling motor. They have more internal shielding and can help prevent interference.

The transducer that comes with the unit is an XNT DI 25 T transducer and is intended to be mounted on the transom .... a mount can be used to mount it on the trolling motor, but without the shielding is more susceptible to noise than the XTM model transducer.
There are 2 versions of the XTM transducer one is the XTM DI 25 T and the other is the XTM 9 wide Di 20 T .... I'm not sure if the Helix 7 supports the DI wide or not.

Did you exchange the transducer that came with the unit with the XTM style transducer?

If you don't have the XTM transducer it would be cheaper to get it than to swap out the trolling motor. There is no guarantee that it will eliminate all the interference, but in several cases I have seen it do so.

Brian at BBG has a pretty good sale going on refurb, display and return models right now. Full 1 year warranty. Might check it out. But work these guys a little and you can probably find your culprit.

No i didnt swap out the transducer just have the one that came with it...yes it would be cheaper for sure...even tho i dont have spot lock i do like the trolling motor..guess i will try and find one and see if that helps...appreciate the help

Always use twisted wire for powering electronics. Telephone industry learned this years ago for eliminating interference.

Originally Posted by Barnacle Bill

Always use twisted wire for powering electronics. Telephone industry learned this years ago for eliminating interference.

+1 on that one also. I used it for all my power wiring but gave up recommending it because so many people just don't believe it is effective .... It is.

I had horrible interference when I first installed my Terrova. My1198 became unreadable. Traced my wiring out. Found out same battery connected to 1198 and Terrova.

Removed 1198 from that battery. Went out on lake and used small temporary battery to power 1198. No interference at all problem solved. From that point on I never wire so that trolling motor shares anything with my electronics. Also never use my cranking battery for electronics or trolling motor. Paranoid, perhaps but I never have strange issues with my TM or electronics.

I also have gone to a seperate battery for my electronics. Much easier and no interference.


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