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Good carrier, but no modulation or receive

I have a ge radio that has a great carrier but has no modilation or recive, I have tried different mics and they all have the same change........I found a 1000uf cap that was blown by the audio ic and i changed it with the same thing and their was no change in the problem..........can anyone help me?

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  • Anonymous May 01, 2008

    I cant seem to get my radio to receive clearly.

  • theradioguy May 11, 2008

    All the problems with this radio were on the bench, I have used the same test equipment with other radios without any problems, and have since tested other units without problems.



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Audio IC is junk, replace it and it will work fine. common problem

Posted on Aug 04, 2008

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Some say try new antennas but,I think the major cause is the coax.
I also had a signal problem and did try new antennas,did nothing. Then I find out that the coax they are putting in the newer trucks,like my 2007 is nothing but Junk. You have to start from the source and that is the coax.

Posted on May 08, 2008


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That's usually a defective amc stage that produces RX audio and TX modulation. It's an integrated circuit that will require a tech fixing it. You will have a transmitted carrier with no modulation, and no sound in your speaker. However, make sure you have a good mike plugged in first, and substitute a known good mike to verify it's not the mike.

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I have a Cobra 18 wx st. I am not able to transmit anything on it. I have checked the antenna cables and and all external connections. I receive all the wb just fine but the CB gives me nothing. I tried a...

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