My ultrex mind about to blow!

[louievito]

Just cant seem to solve interference issues with my garmin. I have cables routed away from each other and hooked up to independent battery. Not using the internal transducer. Heard drilling a hole in skeg will void warranty. My next try is ferrite cores, but I have heard they dont help. Crystal clear when motor is not running, but I step on the go pedal and lines on 2d and down view turns straight blue. Anyone have any additional tips? I mostly use 2d with ascope and when I hit the pedal the ascope gets fuzzy and I lose the ability to interact with fish.
Thank you for looking

[grout-scout]

I know you said “independent battery”, but you don’t have a battery charger connected to it do you?

[louievito]

No I have a portable I charge the dedicated battery

[Hollada]

Have you confirmed the fuse in the head of the ultrex is good? Do you have link? If so, have you tried disconnecting the Ethernet? Gotta take all the potential emf sources one at a time and try to eliminate them.

[louievito]

I have two Stryker plus units hooked together. No I haven't checked the fuse in the head of tm. Motor is 6 months old and has done this since day one. No ethernet or link, just an internal GPS in the sonar units

[louievito]

One sonar at console and one at bow. Both units hooked to a dedicated battery

[CatFan]

Built-in transducer should be better.

[D-wayne]

Take some time to research this issue.
A suggestion to try... wrap the motor with a thin lead lined rubber coated tape. 3M has it.

[bobcoy]

Does that work for a cap too?

[BDPIL]

I have a Garmin on my Terrova that was giving me interference also. What I did was cut some pieces of rubber to the shape of the transducer and taped them together with some aluminum foil tape. Once I did all that the rubber piece was about an 1" think. Put that between the transducer and TM and clamped it down. Then lowered the gain in my settings down to about 72-73 (Echomap + 93SV) and it cleared right up. Hope this helps.

I have a newer Terrova so the ground is already run through the TM with a fuse so that wasnt the problem for me.

[reelmin5]

I had an interference problem a while back and it turned out to be a bad transducer wire, I think it got pinched or damaged? Worked great until I stepped on the pedal.

[lpugh]

Run new power wires directly to battery
High quality, high strand count tinned copperwire, its not cheap
10 gauge battery to console and bow, hand laid twist about 6 twist per ft 30 amp circuit breaker at battery
From console to each unit 16 gauge twisted pairwith 3-5 amp fuse including to bow
Wire runs on opposite of boat from trollingmotor cables
Optional and may help twist the battery leads to thetrolling motor as well
Try to keep electronics wire as far aspossible from other wiring such as live wells pumps and wiring

Consider installing a switch in the batterycharger negative lead to the cranking battery that will open circuit theground, as this can assure that the charger is not providing a ckt between cranking and trolling motor battery grounds...... If you still have issues after all else is done

Ferrite rings added to transducer cable andpower cable from foot pedal
Use stand off ties on transducer cable ontrolling motor shaft
No coils in transducer or power cables
Wind them in a figure eight shape

A lead shield between the trolling motor and transducer

Check voltage between negative posts between trolling motor batteries and cranking battery. If more than 300 MV, find what’scausing it and correct the problem

A choke on the power supply cable to thegraphs is sometimes needed. Humming bird has one listed for their units, probably could be adapted to others as well

Set noise reduction and sensitivity to required levels

[louievito]

Thank you for the replies I will try the suggestions

[louievito]

On my 2019 ultrex does it have a ground in head with a fuse ?

[rakkc]

Run new power wires directly to battery
High quality, high strand count tinned copperwire, its not cheap
10 gauge battery to console and bow, hand laid twist about 6 twist per ft 30 amp circuit breaker at battery
From console to each unit 16 gauge twisted pairwith 3-5 amp fuse including to bow
Wire runs on opposite of boat from trollingmotor cables
Optional and may help twist the battery leads to thetrolling motor as well
Try to keep electronics wire as far aspossible from other wiring such as live wells pumps and wiring

Consider installing a switch in the batterycharger negative lead to the cranking battery that will open circuit theground, as this can assure that the charger is not providing a ckt between cranking and trolling motor battery grounds...... If you still have issues after all else is done

Ferrite rings added to transducer cable andpower cable from foot pedal
Use stand off ties on transducer cable ontrolling motor shaft
No coils in transducer or power cables
Wind them in a figure eight shape

A lead shield between the trolling motor and transducer

Check voltage between negative posts between trolling motor batteries and cranking battery. If more than 300 MV, find what’scausing it and correct the problem

A choke on the power supply cable to thegraphs is sometimes needed. Humming bird has one listed for their units, probably could be adapted to others as well

Set noise reduction and sensitivity to required levels

do you by chance have a link or recommended source for purchasing the 10 and 16 gauge wire you are referencing? and for the hand laid twist is 6 per ft the minimum or maximum you would recommend. Thanks

[lpugh]

https://www.acerracing.com/collections/superworm-silicone-wire
Six or more, it will shorten the length the more it is twisted

[Wayne P.]

https://www.acerracing.com/collections/superworm-silicone-wire
Six or more, it will shorten the length the more it is twisted

Already twisted:

https://www.amazon.com/KnuKonceptz-K.../dp/B009O4JKYK

[bobcoy]

Yes, Brown wire attached.

On my 2019 ultrex does it have a ground in head with a fuse ?

[CatFan]

Take some time to research this issue.
A suggestion to try... wrap the motor with a thin lead lined rubber coated tape. 3M has it.

Lead would be almost completely useless in this application. Metal works as a shield because it conducts electricity. Since lead is a poor conductor, it is a poor shielding material. Since the motor housing is already a conductive metal, an outer shield that isn’t a better conductor with complete coverage will not have any effect.