Humminbird Helix 9 DI G2N transducer problem...

[n8cas]

I have a Humminbird Helix 9 DI G2N mounted at my bow and have been experiencing transducer display problems.

I'm using the MinnKota MKR-US2-11 Extension Cable for US2 Motors along with the MinnKota US2 Adaptor Cable for Humminbird 7 Pin adapter to hook the internal Ultrex US2 transducer (the non-DI model) to the helix unit. Very often I see a bunch of thin horizontal lines going all the way up through the water column reading on my helix followed by a slow fall down the water column until the display is true to the depth I am in. It sporadically (and frequently) resets back to a distorted reading with what seems like no reason at all. Then, there are times where there is a solid line (sometimes thick) up near the top of the water column that does not disappear.

To troubleshoot this, I installed a Humminbird XTM-9-DI-25-T 15 Foot Trolling Motor Transducer to the bottom of my 112 Ultrex w/link gen 1, so I could use DI up front and see if it was a wire problem OR adapter problem. The Humminbird transducer wire on the external DI wires straight to the Helix unit.

I have pretty much the same exact issue using the DI transducer and NOT the internal Ultrex transducer. That seems to mean that it is a problem with the Helix Unit itself. Has anybody else experienced these display issues with their Helix units? Any help would be greatly appreciated. Thanks.

[Wayne P.]

First of all the US2 does not do Down Imaging.
Next is the unit default 2D frequency is 200/455 kHz.
Next is the US2 is a 83/200 kHz transducer.

Select Generic 83/200 kHz to use the US2.

[n8cas]

Thanks, Wayne. I know the original Ultrex internal ducer does not do DI. It’s the sonar reading where I am having display issues (with both ducers). I have the frequency properly set at 83/200 kHz. Sorry for not mentioning that.

[n8cas]

Any help would be appreciated. I hope the Helix head unit does not have to be replaced, I purchased it in March of last year...