Guests - If You want access to member only forums on FM. You will gain access only when you Sign-in or Sign-Up on Fishing Minnesota.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
LwnmwnMan2

Trolling motor whine in AM radio

7 posts in this topic

Okay, now I'm on other boards pertaining to other subjects, and I know how it is when the same question is asked over and over.....

I tried to search on here, and then I went back 50 pages of posts to find someone that's already asked, but to no avail.

Here goes...

We get a whine out of the radio when the trolling motor's running.

Also, it drops the AM signal to almost nothing.

Now the trolling motor battery is seperate from anything else, and it's at the front end of the boat, while the other 2 batteries are at the back end. One is the starting motor for the main motor, the other battery runs all the electronics.

What can I do other than this to get rid of the whine??

I'm running a MinnKota 55 PD.

Thanks.

Share this post


Link to post
Share on other sites

You could try a noise supressor. It usually goes inline with the radio positive wire. I believe they were available at radio shack. Haven't used one in a long time though.

Share this post


Link to post
Share on other sites

The motor generates radio waves.. does that to mine too and it's a battery operated radio with no connection to the boat. Only thing that helps is use the FM band..

Share this post


Link to post
Share on other sites

Quote:

The motor generates radio waves.. does that to mine too and it's a battery operated radio with no connection to the boat. Only thing that helps is use the FM band..


You're right, but it's hard to find the Twins on the FM side on a calm, clear evening fishing..... smirk.gif

Share this post


Link to post
Share on other sites

Quote:

Quote:

The motor generates radio waves.. does that to mine too and it's a battery operated radio with no connection to the boat. Only thing that helps is use the FM band..


You're right, but it's hard to find the Twins on the FM side on a calm, clear evening fishing..... smirk.gif


FM would be OK, but XM would be better! Let me know if you need help hooking it up.

Share this post


Link to post
Share on other sites

There is nothing you can do. It is the nature of the beast with the pulse width modulation (PWM) of the motor and AM radio waves.

It is what it is.

Share this post


Link to post
Share on other sites

Quote:

There is nothing you can do. It is the nature of the beast with the pulse width modulation (PWM) of the motor and AM radio waves.

It is what it is.


That's what the dealer said when we didn't have ANY AM signal at all.

Then they put a complete new radio in, because even the FM side was VERY sketchy, at best.

Our last boat, there was zero whine, AM or FM.

Maybe I'll have to pull that $20 Wal-Mart special out and switch the new radio into the old boat???

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  
Followers 0



  • Posts

    • Mike89
      did not go around the whole lake,, so that is all we saw
    • HurricaneBill
      I have the Milwaukee m18 fuel hammer drill, 5ah batteries, never worried about keeping them warm last year and never had a problem. 
    • Stick in Mud
      Thanks for the ice report, Sculpin.  With the weather forecasted for the upcoming week, I'm sure I'll be up there next weekend, hopefully walking out from the northwest side.   van, yeah, I hear you.  I've been up to LOW a few times, and it is very fun to know there's the chance of catching a monster....but driving all that way for a bucket full of 12'' fish?  Not my cup of tea. I'll save the money and buy three dozen T-bones to make it through the winter. I'm sure people who know the lake better than I do have done better on the weekends I'm up there, but the reports at the resort we used were pretty similar.    I like the northwest side on ML because it's where we've been for almost 20 years, but it also has close access to sand, rocks, whatever weeds remain, mud flats, transitions, etc. The only thing we don't have up there is extensive gravel.
    • BassThumb.
      I'm curious to see how this works out. Do you plan to keep the battery warm while not is use on the water? 
    • Vitreus
      How much ice??????