Question about CB Radios

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I can nir hear anthing with my Cb radio.

I had a break in my antanna, when I would after wiggling the wire a couple of times I hav no sound. the power is on and I have movement with my guages but no sound. What do you thik the problem is? I think it is my antanna.

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  • jims51 Sep 16, 2008

    I have the same problem. I know that keying up a CB or HAM radio without an antenna...or "load" attached will burn up the final amplifiers. I did the same thing...antenna coax got pulled off the antenna and I didn't know it. IF I'd had a High SWR Alert...like there is on a better radio like the Galaxy...I might have avoided this problem...same with you. I guess you can replace the finals if you want to mess with it. It shouldn't be hard to do if you can find the amplifiers and get some directions. I'd like to try it, myself. In the meantime I fixing to buy a Galaxy 959.



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I agree try replacing antenae

Posted on Aug 23, 2008

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Connex 3300 hp


no its not the problem but it doesn't help..first, is this a newly purchased radio or did you get it on ebay . if its new send it back its still under warrenty as long as its not to old . iIf you got it on ebay , you're screwed. You can take it to a CB shop and they will fix it for you.I could fix it but I don't have time to explain the procedure .

Sep 18, 2013 | CB Radios

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Turned up full volume u can only just hear sound if ear right to it was working fine then the volume just ******** out


It could be the mic plug. uniden is known for the issue where the wires inside the mix plug break at the solder joints.

When the RX wire breaks, you will loose receive because the radio will not go into receive mode. But you can usually hear it ever so slightly if you crank the volume.

Other issue that may cause this. No radio activity, (unless you hear radio activity low and not static)

poor feed line or antenna.

I would try a different mic that is known to work.

Aug 11, 2012 | CB Radios

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I have new cobra ltd new antannas and mounts can hear but cant talk


You say antennas,I assume co-phased,as long as they were installed correctly&adjusted for the lowest swr reading,we'll assume they are ok.Next step would be the radio adjustments ,there is a switch next to your meter that must be set to s/rf,another switch for cb/pa needs to be on cb and last the knob for mic gain needs to be set at about halfway to three quarters depending your voice level and mic type used..are you using the stock mic that came with the radio,if so you should be able to transmit..look at the meter when you key the mic and talk it should move with your voice.If your using an aftermarket mic such as a power mic,make sure the battery is fresh and the correct type,this may also not be wired correctly for your radio if bought second hand..next step would be taking vehicle w/radio to a reputable cb repair shop or technician to evaluate.Good luck and hope everything works out.

Sep 05, 2011 | Cobra 29 LTD CB Radio

1 Answer

I am just wondering how to fix the sound on a cobra 21 wx cb radio


most often what causes a cb radio to have no sound is a bad Mic. some times the solder joints on the Mic plug break beause it.moves around a lot over time. if th RX wire breaks off the radio will not go into receive mode and you will hear nothing. try a different Mic

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Alright i have a cobra 29 LTD classic cb radio i recently bought and i am trying to put it in my 1985 ford ranger i have it grounded to the frame on the negative side i have the positive ran into the fuse...


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Jan 12, 2011 | Cobra 29 LTD CB Radio

1 Answer

When keying up i hear a ecko coming out of box click sound


This usualy says that there may be a break in the Mic. wiring. To find this out sometimes if the break is at one end or the other you can try while keying up und speaking into mic. wiggle the wires at the plug or where the cord comes out of the bottom of the mic.
Sometkimes the cord can be cut and re-soldered or, replace it regardless. The latter may save you the same problem down the road..........HAVE FUN ! !

Sep 22, 2010 | Galaxy Radios DX-959 40-Channels Base CB...

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My antanna light keeps lighting up. ive checked all conections and even put tin foil between all the conections from my cable threw my spring and my antanna


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I listen my self on my car sound system when i transmit


its a fact of life when it comes to CB. Some times you will hear it over the radio if it is on. Happens with mine. There really is no way to solve it unless you replace all the speaker wire in the car with shielded wire.

You are sending out RF. When the AM modulation hits the speaker wires, the act like an antenna a bit. If there is any electrical signal in the wires, from the radio being on, even if the volume is low, and some times even down all the way, the signal in the wire coming from the radio acts like a carrier signal and causes the speaker to resonate to the modulation, giving you your voice on the speakers.

You can try running the power wire right to the battery, but its most likely coming from the antenna.

You probably will not ever be able to get rid of it.

Some cars it doesn't effect depending on the speaker wires, some it does.

I can say that a lot of people have their radio modded so that they can hear them selves over the radio when they talk. its called talk back. This way you can know how your audio sounds.

Think of it this way. You don't have to pay a tech to add this feature.


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It is possible the audio amp has failed. If I remember this radio it uses two push pull transistors for the audio amp. Check the mic connector as it may have a broken wire and that can cause a disconnection both ways. Lastly the radio uses a relay to switch from receive to transmit and the contacts can get dirty with age and this rig is getting old! This relay can be cleaned but use the striking surface from a book of matches as the points are silver or an alloy a palladium and can be damaged if cleaned improperly.

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