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Hid & Radio Reception

hrspwr

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hrspwr Enthusiast

hrspwr

Posted
Posted

I installed a set of HID's in my truck and noticed that FM radio reception is non existent. As soon as I put my highs on (halogen) its back to normal.

Anyone else have this problem, and what can be done to fix it?

nick3941sd Enthusiast

nick3941sd

Posted
Posted

Ive seen someone else on here with that same problem. Im not sure what they did to fix it, or if they even were able to fix it. What brand kit do you have. I have HIDs on my truck without radio reception issues.

nick3941sd Enthusiast

nick3941sd

Posted
Posted

I have the DDM in my truck. Also installed a set in a new tahoe and no radio issues there either. Where did you mount the ballasts? Maybe its too close to something.

hrspwr Enthusiast

hrspwr

Posted
  • Author
Posted

I put the low beam ballasts on the rad supports on either side of the rad, and the fogs inside the fender. Where did you put yours?

peterarch Enthusiast

peterarch

Posted
Posted

I as well have spencers hids in my fogs, with my low HID's on my radio is fine, once I turn on my fogs, i lose everything. I believe it has to be as shielding problem with the fog ballasts, im still trying to think of some ideas to fix it. But my ballasts are all pretty much in the same locations

  • 4 months later...
jmurraywv Enthusiast

jmurraywv

Posted
Posted

Have you found a solution? I installed HIDs (different brand) and I'm having the same problem.

 

I have the same problem with HID low beams from DDM. Still havent found a solution, ballasts mounted in similar location.
beave84 Enthusiast

beave84

Posted
Posted

Yes this should fix your problem, as an electrical engineer I run it to this alot..

 

Its called "Ballast Whine" its cause by the high frequenency coil inside the ballast creating RF noise.

 

What you need are Ferrite Cores, Radio Shack Part #273-069, put one one each wire + and -, They snap over the wire. Get a few extra, sometimes you may need to add more to the +, depending on the severity of the "noise".

 

Take a wire with a ring terminal type end and a ground washer and place it under the screw that holds the ballast to your car and then ground the other end to the chassis on each ballast, this will ground the ballast

 

If you have a plasma tv you would have got one of these ferrite cores in the bag with the directions, this is a common problems with high frequencey devices, inducing RF back into electrical sytems.

 

This is a Ferrite Core installed on a wire, the part number I posted is clip over style , just put this up so you kinda have an idea what it looks like.... this a pass through type...same concept

cp07.jpg

 

 

Hope this helps :dunno:

hrspwr Enthusiast

hrspwr

Posted
  • Author
Posted
Yes this should fix your problem, as an electrical engineer I run it to this alot..

 

Its called "Ballast Whine" its cause by the high frequenency coil inside the ballast creating RF noise.

 

What you need are Ferrite Cores, Radio Shack Part #273-069, put one one each wire + and -, They snap over the wire.

 

Take a wire with a ring terminal type end and a ground washer and place it under the screw that holds the ballast to your car and then ground the other end to the chassis on each ballast, this will ground the ballast

 

If you have a plasma tv you would have got one of these ferrite cores in the bag with the directions, this is a common problems with high frequencey devices, inducing RF back into electrical sytems.

 

This is a Ferrite Core installed on a wire, the part number I posted is clip over style , just put this up so you kinda have an idea what it looks like.... this a pass through type...same concept

cp07.jpg

 

 

Hope this helps :dunno:

 

Now do I place this over the + and - leads that go to the ballast or do I place them after the ballast?

beave84 Enthusiast

beave84

Posted
Posted
Yes this should fix your problem, as an electrical engineer I run it to this alot..

 

Its called "Ballast Whine" its cause by the high frequenency coil inside the ballast creating RF noise.

 

What you need are Ferrite Cores, Radio Shack Part #273-069, put one one each wire + and -, They snap over the wire.

 

Take a wire with a ring terminal type end and a ground washer and place it under the screw that holds the ballast to your car and then ground the other end to the chassis on each ballast, this will ground the ballast

 

If you have a plasma tv you would have got one of these ferrite cores in the bag with the directions, this is a common problems with high frequencey devices, inducing RF back into electrical sytems.

 

This is a Ferrite Core installed on a wire, the part number I posted is clip over style , just put this up so you kinda have an idea what it looks like.... this a pass through type...same concept

cp07.jpg

 

 

Hope this helps :)

 

Now do I place this over the + and - leads that go to the ballast or do I place them after the ballast?

 

 

These go on the wires that feed power to the ballast.

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