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I am getting some rf interferance on side imaging when operating my trolling motor. I have grounded my trolling motor to my negative side of the starting battery. With not much help. I have done a bunch of research on this issue. Humminbird is going to send me something to install on he trolling motor. Anybody have any solutions?
http://i580.photobucket.com/albums/s...ps6b83a59a.jpg
HERE is a lot of info on the subject.
I appreciate it BB. I've read it. Just posting here hoping somebody will read this and give me a new idea. ThxQuote:
Originally Posted by Barnacle Bill
Is the xducer cable running along the TM cable to the foot pedal ...??
Rickie
No I've got them separated.Quote:
Originally Posted by rnvinc
I found these on Ebay. It's 16lbs of various styles of ferrite chokes. I think I'm going to start at one end of the boat wrapping power cables, trolling motor cables and transducer cables until the rf interferance goes away. Does anybody think it will work?
http://i580.photobucket.com/albums/s...pse1e6f6e3.jpg
I think the last thing you try will fix it :biggrin
I hope so.
HB will send you ferrite chokes that are designed to combat RFI at the frequencies of their own proprietary xducer functions ...
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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
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!...............
I'll try that.Quote:
Originally Posted by metalworx
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
it didn't work. Back to the drawing board?Quote:
Originally Posted by metalworx
I do have an old Minnkota Maxxum. I doesn't have the digital maximizer.Quote:
Originally Posted by mozingo1952
And I reiterate ...
Quote:
Originally Posted by rnvinc
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
Here is a few more pics
I seperated the trolling motor cables away from the transducer cables.
Here's the latest update. Now I'm more confused than I was before. Humminbird sent me a tmc1 choke and two ferrite rings. Installed the tmc1 and it made the rf interference worst. Now I'm down to buying a new trolling motor and replacing the transducer. I can set the sensivity on 9 or below and not have any interference. If I go higher it gets worst. Right now it's useable. I'm going to take it down to Ranger this summer and get a couple of cosmetic things done to it. I'm probably going to have them move all of my Tm batteries to one side. I also found some 14-2 twisted and aluminum shielded wire. I already ran new wire straight to the battery already but it's not aluminum shielded. I hope I can get this lined out. I love the 1199's and the 360. My buddy has 2 1198's and a 360 it's a deadly fishing system. So getting Lowrance electronics is out of the question for me!
You've already determined the RFI is getting into the xducer or its cable ...
There is 20' of xducer cable ...
Somewhere along that 20' ... The RFI is encroaching ...
Use the same scenario of removing the xducer and its cable away from the TM to where the RFI goes away ...
Then start experimenting with that entire 20' until the point of RFI encroachment can be determined ...
I'm guessing you have a small nick in the xducer cable somewhere ...
Rickie
I will have to check in to it. This Rf issue can drive a sane person crazy.Quote:
Originally Posted by rnvinc
I agree ...Quote:
Originally Posted by Brian Stucker
Rickie
it's definantly a process of elimination. A giant puzzle!Quote:
Originally Posted by rnvinc
Can it drive a crazy person sane.....If so, I'll have to introduce some on mine.:Doh:
I found this video on you tube with a bow mount transducer bracket. I've been thinking for better and more accurate SI and DI this would work better any way than having it mounted permanently to the Trolling motor. https://m.youtube.com/watch?v=4sI6gd4RMz0
That one looks great but I don't think I could mount that one. I don't have enough room.
main page for bow mounted depthfinder fishfinder tackle box labels in red blue for plano and other tackle boxes
I use this transducer mount and it works well.
I like that. Looks like you can take it out and lay it in he floor. It won't mess with my cover.Quote:
Originally Posted by lowe rider
How durable is it when trolling? Does it move around?
I've never had any problems with it moving around. I ve longline trolled with mine a lot. There is a key way that screws on the tube that aligns it in the base so that it can't rotate if you're using a sidescan transducer. It does just lift out of the mount and can be laid in the floor when not in use.