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Unread 09-19-2014, 11:38 AM   #1
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Default Radio interference?

A while back I installed a radio in our 2001 DS Series cart. When sitting still radio plays fine but at any throttle input it seems like something is blocking radio reception until wide open then it sounds fine again. The radio is wired to a 12 volt automotive battery in the bagwell. Any ideas?
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Unread 09-19-2014, 12:04 PM   #2
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Default Re: Radio interference?

Are you using a 2 wire system or a body ground?
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Unread 09-19-2014, 12:08 PM   #3
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Default Re: Radio interference?

Two wire from batt to radio no chassis ground. I have tried re-routing the wires away from any others thinking maybe that would help but no change.
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Unread 09-19-2014, 12:22 PM   #4
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Default Re: Radio interference?

Quote:
Originally Posted by tjequip View Post
Two wire from batt to radio no chassis ground. I have tried re-routing the wires away from any others thinking maybe that would help but no change.
I'm not an audio expert - somebody with more experience should advise.
Google noise suppression diode
You might find something to help
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Unread 09-19-2014, 02:12 PM   #5
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Default Re: Radio interference?

12 Volt Accessory Noise Filter/Eliminator



http://www.ebay.com/sch/i.html?_from...lter+car+noise
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Unread 09-19-2014, 10:36 PM   #6
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Default Re: Radio interference?

You first need to determine how the noise is getting into the radio so you do not waste time chasing ghost. Noise gets in from either the antennas or power wires. Get a 12 volt battery throw it on the floor of the cart and connect your radio. Do the test. If the noise is gone, it is coming in on the power. If it remains it is radiated from the PWM controller an/or motor brushes.

My bet is from the wiring, well not actually the wiring, but just the nature of the beast with PWM controllers.

If from the antenna the noise is generated by the PWM controller and/or motor brushes. If it is from the brushes try replacing them. Otherwise all you can is move the antenna around to minimize the noise.
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Unread 09-20-2014, 10:21 PM   #7
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Default

I've got a similar problem, except it's the headlights that cause the radio to cut out.
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Unread 09-20-2014, 11:45 PM   #8
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Default Re: Radio interference?

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Originally Posted by Luke Duke View Post
I've got a similar problem, except it's the headlights that cause the radio to cut out.
Just curious, Are you using a 12 volt Converter from the traction battery?

If so that would be the source of the noise if it only happens with head lights on especially with the radio connected to the Converter.
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Unread 09-21-2014, 07:37 AM   #9
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Default Re: Radio interference?

Your noise is probably coming in through the antenna picking up the PWM frequency of the carts controller. I'll bet your radio and antenna is in the dash. I've had the same thing happen as well as many other members. The only guaranteed way I found to cure it was an overhead stereo system (roof mounted) if you want to listen to am/fm.

If you use aux in, cd or other input it will be clear, no static no matter where you mount it.
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Unread 09-21-2014, 08:04 AM   #10
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Default Re: Radio interference?

Quote:
Originally Posted by sunking View Post
Just curious, Are you using a 12 volt Converter from the traction battery?
never seen a traction battery in a golf cart ... in a forklift i have
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