My 3rd party radio makes a buzzing/squeeling sound when I'm listening to AM radio stations. FM is fine. The AM is perfect if the engine is off and running on battery power. Any ideas?
AM radio interference when engine is running
Gatorfreak
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My 3rd party radio makes a buzzing/squeeling sound when I'm listening to AM radio stations. FM is fine. The AM is perfect if the engine is off and running on battery power. Any ideas?
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Re: AM radio interference when engine is running (Gatorfreak)
Does it have a noise blanker?
Does it have a noise blanker?
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Re: AM radio interference when engine is running (BanamexDF)
Ground loop isolator! Never heard of that but after reading about them, that definitely sounds like it helps the symptoms I've got. All the ones I've found online have RCA plugs. I guess I'll have to wire it into the connections for my radio since there is no external amp to put it between. I'm gonna give it a try. Worth a shot for $10 or so. Thanks!
Ground loop isolator! Never heard of that but after reading about them, that definitely sounds like it helps the symptoms I've got. All the ones I've found online have RCA plugs. I guess I'll have to wire it into the connections for my radio since there is no external amp to put it between. I'm gonna give it a try. Worth a shot for $10 or so. Thanks!
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Re: AM radio interference when engine is running (Gatorfreak)
Good luck dude
![Image]()
| Quote, originally posted by Gatorfreak » |
| Ground loop isolator! Never heard of that but after reading about them, that definitely sounds like it helps the symptoms I've got. All the ones I've found online have RCA plugs. I guess I'll have to wire it into the connections for my radio since there is no external amp to put it between. I'm gonna give it a try. Worth a shot for $10 or so. Thanks! |
Good luck dude
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Re: AM radio interference when engine is running (troyboy96)
AM radio is my only FREE source of ESPN Radio in the car.
![Image]()
AM radio is my only FREE source of ESPN Radio in the car.
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Re: AM radio interference when engine is running (Gatorfreak)
The problem is the alternator. You can try a few things... ferrite beads around the power wires for the radio, there are also inline DC filters that you can buy that will take some of that off the line as well.
http://www.davidnavone.com/cart.asp?14&pid=130
http://www.davidnavone.com/cart.asp?14&pid=171
The noise is either coming in on the power wires or the antenna. Those will probably stop both. the rca ground loop isolators only stop the symptoms, not the actual problem.
http://www.crutchfield.com/App...=2653
http://www.crutchfield.com/App...=2653
The problem is the alternator. You can try a few things... ferrite beads around the power wires for the radio, there are also inline DC filters that you can buy that will take some of that off the line as well.
http://www.davidnavone.com/cart.asp?14&pid=130
http://www.davidnavone.com/cart.asp?14&pid=171
The noise is either coming in on the power wires or the antenna. Those will probably stop both. the rca ground loop isolators only stop the symptoms, not the actual problem.
http://www.crutchfield.com/App...=2653
http://www.crutchfield.com/App...=2653
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763 Posts
Re: AM radio interference when engine is running (tyrantanic)
I got the antenna noise filter. 100% FIXED!!!!
![Image]()
Thanks for the help. I'm enjoying some clear (as it gets) AM radio now!
I got the antenna noise filter. 100% FIXED!!!!
Thanks for the help. I'm enjoying some clear (as it gets) AM radio now!
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