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Just put on a new 859 Humminbird at the tm. As soon as you touch the trolling motor foot control, the screen becomes unreadable. I have put on several chokes and filters. I ran new wires to starter battery, still nothing.
Humminbird is sending out a choke.
The trolling motor is a Minn Kota Maxum. Does anyone have a fix?
the ferrite ring HB is sending usually does the trick
I have a Maxxum Pro on my boat and ran that extra ground as shown in the pic. except I wrapped it around the transducer cable all the way up the TM then enclosed it in a soft plastic tube.Quote:
Originally Posted by Barnacle Bill
Is the xducer cable following the TM power cable...??
All Sonar Information Resource
Rickie
Lv 2 Fish , get you the da'ducer from rnvinc and you want have that problem. I have one mounted on front of my boat about a foot from troll motor and have zero interference from tm. Only way to go.
No, I have separated all the wires. My trolling motor has the built in transducer, but its not hooked up. Could it still be getting interference from it anyway?
LV 2 FISH here are some pics of the way I have mine set up with the da'ducer. As you can see it is right next to troll motor but has zero interference from it.
Attachment 175315Attachment 175316Attachment 175317
The simplest test is to remove the xducer and its cable from the TM and hang the xducer in the water as far away from the TM as possible...Quote:
Originally Posted by LV 2 FISH
Then step on the TM ...
*If the interference is still present ... The RFI is getting into the system somewhere else ...
*If the interference goes away ...move the xducer closer to the TM in different areas to try and determine where the RFI is getting into the xducer or its cable ...
I have even found that sometimes RFI can even get in the system from a "pinch point" in the xducer cable from a ziptie being too tight...
Rickie
I have a motorguide, trolling motor that I got best results with a ground wire hooked to the skeg.also I keep the transducer cable tied with zipties, but I keep them real loose.(rickie correct, if you pull the transducer cable in tight against the trolling motor shafts or the wiring harness, it could cause r f issues )
J-row, has the best setup.but not everyone can use the dad user setup.
LA 2 fish, this test that rickies suggested is a good ideal.but it's not a fix all test.i tried this test on my boat, but it didn't matter were the transducer was located.i still got interference from trolling motor.ive also got a transom mounted 360.if I remove my ground wire from the trolling motor, there will be interference.Quote:
Originally Posted by rnvinc
good luck with your setup.
Rickie, I'm working on the fix in my shop. Will the result be different, not being on the water?(
ie the transducer not being in water) I have attached a ground to the skeg,rerouting wires now. Have done all your recommendation's. I'll keep you updated.
Kosmo
Did the Ground wire alone fix your problem?
The 998 that I had with the transducer mounted on the trolling motor, also had a hummingbird choke made into the power cable.
I now have an onix10 , with the transducer mounted on the same trolling motor.i have almost no interference with the ground wire attached. I tried unhook in the ground wire but the interference was to much for my liking so I hooked the ground back
http://i826.photobucket.com/albums/z...psgitg5znl.jpghere's the interference that I have.im only seeing it on the 800 kHz at long range.
kosmo my 899 has that same interference on 800 khz when I am running it and my 798 at the same time. The heads are mounted side by side but the transducers are mounted on opposite ends of the boat.
kosmo here is what mine looks like running the 798 and 899 at the same time.
Attachment 175455 doesn't show up on here as good as yours.
I would test in the water...Quote:
Originally Posted by LV 2 FISH
Rickie
Update
Went to the lake today to see if the repairs worked. A BIG YES. I grounded the trolling motor and put on the choke from Humminbird.
Thank you to everyone for you help.
:ThumbsUp:ThumbsUp:ThumbsUp
Now you can get us some pix to ooo-ahh over ...
Rickie