Sonar interference

Replies to This Discussion

Permalink Reply by John McHenry on March 17, 2010 at 4:16pm

Only when pitching with 8 pound test! Uh huh..

Andy Smith said:

You ues sonar

Permalink Reply by John McHenry on March 17, 2010 at 4:20pm

Ron, you know what they say about a blind squirrel and an acorn.

Ronald Hobbs, Jr. said:

I don't think you need a sonar that is working, I'm tired off picking pieces of leather from my butt after you kick it so bad on Sammamish!

Permalink Reply by John McHenry on March 17, 2010 at 4:22pm

Thanks for that Mark. That sounds right.

Mark Shugdinis said:

I hade interference every time I stepped on my trolling motor to engauge power to it. The first thing you need to do is wire it directly to the cranking battery and then install a ground wire from your negative terminal on your trolling motor #1 battery to the negative terminal on your craking battery with a 10 amp in line fuse. This is all on the assumtion you isolated the problem to the trolling motor .

Permalink Reply by John McHenry on March 17, 2010 at 4:28pm

Appreciate it Willie.

Willie Nelson said:

Interference is caused by a few things. Direct wiring is a start. Also if it is a newer model may have a small 3 amp fuse under motor cap. check that fuse if it has one.
i would first do reccomendations that others have given and if doesnt work then call minn kota and get a interference kit will come with a few chokes one you wire in line up front at power wires for bowmount. a small donut which you make 7 wraps with universal sonar cable and a small choke which you wire at units power.

Hope this helps

Permalink Reply by John McHenry on March 17, 2010 at 4:29pm

Greg it's a Lowrance.

Thanks for all the responses.

Greg Hatleberg said:

Damn you beat me to it! Also if we're talking about a humminbird unit make sure you have all the latest software updates(that also may help if it's lowrance Marc M could tell you more about lowrance) the interferance kit Willie speaks of is for Hummingbird Unit. Although the in line choke for the trolling motor would help for either unit! If you have any questions on the software updates feel free to message me or I'm sure Willie would be able to help.

Willie Nelson said:

Interference is caused by a few things. Direct wiring is a start. Also if it is a newer model may have a small 3 amp fuse under motor cap. check that fuse if it has one.
i would first do reccomendations that others have given and if doesnt work then call minn kota and get a interference kit will come with a few chokes one you wire in line up front at power wires for bowmount. a small donut which you make 7 wraps with universal sonar cable and a small choke which you wire at units power.

Hope this helps

Permalink Reply by Greg Hatleberg on March 18, 2010 at 7:26am

John,

Best of luck for you! Lowrance has seemed to have that problem universal sonar or not for a long time. It's an interesting problem back when the new trolling motors came out with the varible speed control and the battery life saving features is when it started. Many times not even running a seperate wire to the the battery will clear it up. I know it can be quite frustrating, being an electrician I know a little about DC power sources. I had set ups that nothing I was able to do would get rid of the interference. My suggestion is to put that choke that goes in-line in your power to the trolling motor. After that I don't have any answers. Best of luck and good fishing!



John McHenry said:

Greg it's a Lowrance.

Thanks for all the responses.

Greg Hatleberg said:

Damn you beat me to it! Also if we're talking about a humminbird unit make sure you have all the latest software updates(that also may help if it's lowrance Marc M could tell you more about lowrance) the interferance kit Willie speaks of is for Hummingbird Unit. Although the in line choke for the trolling motor would help for either unit! If you have any questions on the software updates feel free to message me or I'm sure Willie would be able to help.

Willie Nelson said:

Interference is caused by a few things. Direct wiring is a start. Also if it is a newer model may have a small 3 amp fuse under motor cap. check that fuse if it has one.
i would first do reccomendations that others have given and if doesnt work then call minn kota and get a interference kit will come with a few chokes one you wire in line up front at power wires for bowmount. a small donut which you make 7 wraps with universal sonar cable and a small choke which you wire at units power.

Hope this helps

Permalink Reply by Marc Marcantonio on March 18, 2010 at 3:49pm

John,

Shoot me an email and I will send you various articles I have written on this subject over the years. Let me know how new your Minn Kota is also so I can determine if it has the internal ground or not.

ciao,
Marc

John McHenry said:

Greg it's a Lowrance.

Thanks for all the responses.

Greg Hatleberg said:

Damn you beat me to it! Also if we're talking about a humminbird unit make sure you have all the latest software updates(that also may help if it's lowrance Marc M could tell you more about lowrance) the interferance kit Willie speaks of is for Hummingbird Unit. Although the in line choke for the trolling motor would help for either unit! If you have any questions on the software updates feel free to message me or I'm sure Willie would be able to help.

Willie Nelson said:

Interference is caused by a few things. Direct wiring is a start. Also if it is a newer model may have a small 3 amp fuse under motor cap. check that fuse if it has one.
i would first do reccomendations that others have given and if doesnt work then call minn kota and get a interference kit will come with a few chokes one you wire in line up front at power wires for bowmount. a small donut which you make 7 wraps with universal sonar cable and a small choke which you wire at units power.

Hope this helps

Permalink Reply by John Potter on April 26, 2010 at 8:42pm

You guys seriously STILL make that joke? LOL... How's fishin' been Baby Cub?

John McHenry said:

How do? Uh huh!

Brian McHenry said:

You's gots a Minna Kota, Uh huh?

Permalink Reply by Joel Grafe on April 26, 2010 at 8:55pm

OH HELL.
now this site has gone to the dark side... ha

John Potter said:

You guys seriously STILL make that joke? LOL... How's fishin' been Baby Cub?

John McHenry said:

How do? Uh huh!

Brian McHenry said:

You's gots a Minna Kota, Uh huh?

Permalink Reply by John McHenry on April 27, 2010 at 11:50am

JP,
How about this one..."if we'd only had 15 more minutes"...fishings been good. Looking forward to our club tourny on Potholes this weekend...along with 200 walleye fishermen! How you been doin?

John Potter said:

You guys seriously STILL make that joke? LOL... How's fishin' been Baby Cub?

John McHenry said:

How do? Uh huh!

Brian McHenry said:

You's gots a Minna Kota, Uh huh?

Permalink Reply by John McHenry on April 27, 2010 at 11:51am

Joel,

It was bound to happen! Come out and fish the Jamboree with us.

Joel Grafe said:

OH HELL.
now this site has gone to the dark side... ha

John Potter said:

You guys seriously STILL make that joke? LOL... How's fishin' been Baby Cub?

John McHenry said:

How do? Uh huh!

Brian McHenry said:

You's gots a Minna Kota, Uh huh?

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