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Radio Equipment Installation Forum Forum for discussing how to install radio communications equipment in Mobile, Base, Command Post, EOC, etc configurations.

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Old 07-25-2013, 4:15 PM
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Default 2012 Dodge Ram Ing noise issues

Having issues with Ignition noise on my VHF Hi band radio. Have put a filter on the positive and negative wires and its still there. I have a 3db gain left fender mount and radio hooked to battery. VHF lo band has no such issue and as well hooked to battery. Tried moving antenna that didnt work.....Any ideas out there...Radio is a motorola PM 400,i have same set up in a 2100 dodge 1/2 ton antenna mounted on roof and no issues that radio is a CM 300.
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Old 07-25-2013, 5:14 PM
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If the coax runs at any point right beside the power line, move the antenna line. Also, check your antenna ground.
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Old 07-25-2013, 7:26 PM
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I tried running a whole new antenna.....mag mount no wheres near the power cord.....still have static
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Old 07-25-2013, 7:32 PM
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Nothing you can due but live with the noise. I have been told the noise is caused by the fuel injection system and I havent heard of a fix. I know a couple of pepole with this problem in their Dodge pickups.
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Old 07-25-2013, 7:41 PM
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i had a 97 dodge cummins that would cause noise on low band, never did find an answer, and it didn't matter if the radio was mounted in it or a another vihicle parked too close, when it was running, and a radio was within 50ft the radio would lockup .
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Old 07-25-2013, 8:14 PM
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This is a Gas powered and my 2011 dont have the issue.....odd
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Old 07-25-2013, 8:17 PM
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Mtnrider, private message me your phone number and I will call you regarding the problem.
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Old 07-25-2013, 8:30 PM
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Quote:
Originally Posted by Mtnrider View Post
This is a Gas powered and my 2011 dont have the issue.....odd
yeah i don't think dodge puts cummins in half tons, another thing, i forgot, is the interference my radio was getting sounded more like a fire tone out, noting like static or alternator noise. really odd.

hope you can get it figured out
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Old 07-25-2013, 10:01 PM
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Would it be an insurmountable task to swap your two radios around just to rule out an issue with the PM 400 radio?
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Old 07-26-2013, 12:54 AM
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Default Re: 2012 Dodge Ram Ing noise issues

Check your alternator on your vehicle. I had a noise that came from mine that sounded like what your describing. Changed my alternator and it fixed the problem.

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Old 07-26-2013, 4:42 AM
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Its not he radio i had a relm in there till the other day and it did the same thing. As far as the alternator. the truck has 5500 miles on it and has done it since day one.....hope its not that...
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Old 08-10-2013, 6:43 PM
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I have had this issue since I bought my 2012 ram also. Been to the dealer numerous times. Installed capacitors, more grounding , bonding and can't get rid of it.
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Old 08-10-2013, 7:44 PM
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Default Re: 2012 Dodge Ram Ing noise issues

Have you alternator checked.

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Old 08-10-2013, 8:54 PM
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Quote:
Originally Posted by ozzie View Post
I have had this issue since I bought my 2012 ram also. Been to the dealer numerous times. Installed capacitors, more grounding , bonding and can't get rid of it.
does your truck have one of those backup camera warning systems with the monitor made into the rear view ? i have heard some vihicles with that type warning system can/has caused radio interfernce. just another 2 cents worth.
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Old 08-10-2013, 11:17 PM
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Quote:
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Have you alternator checked.

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Bingo. It's your alternator.
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Old 08-10-2013, 11:46 PM
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If it's not the alternator, make sure you don't have any other type of power conversion device, i.e. Power Inverter. This will dump a lot of dirt RF into a radio, especially on 2m.
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