20122018 Next time out the interference was back. Follow the sonar data cables electrical wires from the suspected device and to if it comes close to the sonar or data cables.
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All mine are ran through a plastic tube together.
Trolling motor interference with garmin. Wireless Chartplotter Integration Simple integration with your Garmin chartplotter via a. You will see the black wirescrew. Remembering the charger wasnt hooked to the starting battery I unhooked while on the water.
13032016 Recently my humming bird graph picks up interference at speed dial 3 on trolling motor. 16042018 Confirm that the interference is being produced by the trolling motor by establishing that the interference only happens when the trolling motor is used. This should clear it up.
Helped Disconnected my 3 bank charger from the starting battery interference gone I bet if you use a different power source for you Garmin that your problem goes away. For boats that have a 24-volt or 36-volt trolling motor. This almost eliminated all my interference.
Im not going thru all that ill go back to a 5 speed motor first. 07051999 If your trolling motor is not properly grounded electrolysis the movement or leak of electrical current could be a major source of interference and poor performance. The unit works great when the trolling motor is off but when I start it I get bad interference.
Again helped a little Added a ground wire to the trolling motor skag. Most all of todays units have some type of interference issues. I have a Garmin striker 7 with disi.
Everyone says run cables on opposite sides of boat. No wires lose or connected are in any way side by side Trolling motor has 10 speeds 3 is ideal for me to watch bottom structure when using a down rod to target fish or structure at or 25 ft I can use tm at 1. 17012017 That one is the magic number with them.
29012017 The transducer is mounted to the trolling motor. Transducer is mounted to the trolling motor. I dont know what Garmin does with internal noise filtering and would be a call to their customer service is this doesnt do the trick.
Garmin will tell you they dont make trolling motors. Using a second battery for the Garmin will tell if it is or not. The most powerful most efficient and quiet trolling motor with nearly imperceptible sonar interference its everything you could want in a trolling motor.
Run the wire down to the motor. It has a great picture when I am not running the trolling motor but sometimes it becomes unusable when the trolling motor is on. The newer trolling motors are already grounded.
I can be trolling along and its all good and then for no apparent reason it goes south. Trolling motor noise may appear similar but will come and go as you engage and disengage the motor. 14122020 Ok so I installed my new garmin echomap 93 uhd graphs and the interference is still there.
I have soldered the connections and have shrink wrapped them. 10072018 Sonar interference can occur at any frequency and any type of display. Remove your wire harness from the bow of your boat.
Motorguide will tell you they dont make sonar units. 18032019 Added a ferite coil to the the trolling motor power cable and the garmin power cable. When you turn on a device and see a distorted sonar image the last device turned-on may be the source of EMI.
Ground the motor to the negative side of the battery. Some trolling motors may only produce interference when used at certain speeds so test at as many speeds as possible. Once trolling motor interference has been confirmed you may need to adjust your power connection to the battery as follows.
25022019 Attach a ground wire to your ground buss at the bow. 29062021 Interference on garmin fish finder when running trolling motor. Once you have located it take a piece of 16 gauge wire and strip both ends.
If it does move the wires and recheck the system for interference. Im not an electrician so I dont know how to explain it just saying what worked for me. The power for the Garmin unit is from the main battery not the trolling motor batteries.
I was able to filter out the rest. The transducer wire is connected to the trolling motor shaft and along the control pwr cables typical with all trolling motor installations. 16102019 It may be rf interference from the trolling motor.
Lots of folks say ground the skeg to the ground bus up front from the cranking battery. It comes and goes. I attached the ground wire to the fin using a screw.
The tell-tale signs of 2nd sonar interference can be clearly seen as similar dashed lines in this Side Imaging view at 455 kHz. Hit the trolling motor no interference hooked it back up stepped on the pedal and the interference was back. 04022019 I am having a problem with interference on my bow mounted garmin.
Touch it to the screw with the black wire ground screw touch the other end to your trolling motor head. 05032016 All you need to do is ground your trolling motor.
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