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Cobra 29 NW LTD Squeal

Discussion in 'CB Radio Forum' started by Chevyho, Jul 16, 2015.

  1. Jul 16, 2015 #1
    Chevyho

    Chevyho Medium Load Member

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    Other drivers report a nasty squeal when I try and talk. Ive tried 2 differant mics with same results. I can hear others perfect with excellent range. Radio is a Cobra 29 nw ltd classic with a wilson 1000 antenna. Not sure where to start, when in calibration mode adjusting swr the meter sometimes jumps rapidly. Not sure if the radio itself is bad? Any help is very appreciated.
     
    Chevyho, Jul 16, 2015
    Chevyho, Jul 16, 2015
    #1
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  3. Jul 16, 2015 #2
    SHO-TYME

    SHO-TYME Road Train Member

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    Do you have any mods done to the radio?
     
    SHO-TYME, Jul 16, 2015
    SHO-TYME, Jul 16, 2015
    #2
  4. Jul 16, 2015 #3
    Chevyho

    Chevyho Medium Load Member

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    Not that i know of, i bought the truck with the radio in it. I dont think so tho.
     
    Chevyho, Jul 16, 2015
    Chevyho, Jul 16, 2015
    #3
  5. Jul 17, 2015 #4
    Neverready

    Neverready Medium Load Member

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    If you are using a power mike and have both it and Dynamike on radio turned up it may squeal. If you are using an external speaker and it is located too close it will cause a feedback squeal.
     
    Neverready, Jul 17, 2015
    Neverready, Jul 17, 2015
    #4
    Chevyho Thanks this.
  7. Jul 17, 2015 #5
    Chevyho

    Chevyho Medium Load Member

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    I feel like whatever is causing the swr meter to jump around is related to squeal, or is it normal for the meter to jump? None of my other cb's did that.
     
    Chevyho, Jul 17, 2015
    Chevyho, Jul 17, 2015
    #5
  8. Jul 17, 2015 #6
    Bout Z

    Bout Z Light Load Member

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    so. ohio
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    Swr meter shouldnt be jumping around. May have a short somewhere in the antenna system. Is this a factory antenna setup? Factory coax, antennas?
     
    Bout Z, Jul 17, 2015
    Bout Z, Jul 17, 2015
    #6
    Chevyho Thanks this.
  9. Jul 17, 2015 #7
    Bout Z

    Bout Z Light Load Member

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    Mar 14, 2015
    so. ohio
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    A factory antenna system will most likely provide signal for your cb, and am/fm radio. I had a similar issue with rfi getting into the stereo speakers when i'd key the mic, and talk. It would cause feedback and squeal. But it only happened while the stereo was on. Running my own coax and antenna cured the issue.
    Also, if the problem is caused by some external source, like a speaker, the actual squeal itself, could be causing the swr meter to jump around. Try turning the dynamike knob all the way down, then recheck swr.
     
    Bout Z, Jul 17, 2015
    Bout Z, Jul 17, 2015
    #7
    Chevyho Thanks this.
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