Question about Cobra 29 WX NW ST 40-Channels Base CB Radio

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Cobra 29 wx st

The radio lights up even shows when i key up and shows swing but i cant hear anything and doesnt seem to be transmitting i have also tried different mics on the radio to see if that was the problem but it got me no where when u put the radio on pa it works just isnt receiving or transmitting on the cb side or weatherband side i welcome all solutions or possibilties

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  • AnyMHz.com
    AnyMHz.com May 11, 2010

    If pa works then audio ic should be ok.. check antenna/swr. otherwise loose connection on the pcb any other problems to clarifiy it more??

  • Tom Arsenault
    Tom Arsenault May 11, 2010

    "radio lights up even shows when i key up and shows swing"Need to know if the meter swings when you transmit and modulate,or does it just shoe a deadkey with no foward swing? If this is so, I would suspect a loose leg on the audio chip on the pcb.No recieve or no recieve audio? This a new radio? Any work done?

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IF YOU CAN RECIEVE THAT IS A VERY GOOD SIGN THAT YOUR SWR MATCH IS OFF....I DONT KNOW IF YOU MATCHED UP YOUR RADIO WITH YOUR ANT.IF NOT YOU CAN BUY A CHEAP SWR METER @ RADIO SHACK...CHECK THAT YOUR COAX CABLE IS OK TRY TO REPLACE THE COAX......GOOD LUCK

Posted on Feb 21, 2009

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RF gain should be all the way up. Turn the squelch all the way down. Turn the ANL/NB to just ANL.

Turn the dynamic up at least 3/4.

Once you have confirm you can receive and transmit, then you can turn up the squelch up until white noise just stops.

Make sure you are on 19 by the highway. Key up and say break break one nine, can some one give me a radio check please.

you should get a response.

Your RF gain is how much you receive. the higher it is the more you receive. In normal operation there is no need for it ever to be less the all the way on.

Squelch is just to knock out fuzz, and if you only want to hear people close not far. A little less then half way is a basic setting.

the ANL switch is the automatic noise limiter. if you have interference from your vehicle, like engine noise, turning this on will quiet that. If it is extreme engine noise then switch it to NB, noise blanker. It is just a more intense setting.

your dynamic is how loud your audio is. if its low or all the way down, you will not transmit audio loud enough for people to hear. If its a stock radio and has not been tuned, if you turn it all the way up, that is fine.

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I am not completely sure i understand whats going on. it seems like it could be a few things because of different parts of the question.

With my CB everyone else can hear me and the signal transmits fine
Good!
I have tested to see that my CB is picking up the signal
how? A meter on your radio should either light up or a needle should swing if you are receiving.
their voices don't play through my mic of my PA
A Mic is a microphone, i think you mean speaker.
Ok this may be the cause of the problem....
Try a couple of these.
First, unplug the PA Speaker, this simple act should make you to be able to hear the incoming signal.
Make sure the CB is on AM or CB not PA
If you can not hear the speaker may be busted or an internal part may be blown. (needing the expertise of a required technician)
If you can here when you do this make sure the speaker is working by plugging it into a computer. (mp3 players will barely put out enough power to make a sound audible) if this works, make sure you plug it into EXT not PA on the back of the radio.

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i have limited knowledge about whats going on, but i hope this will help fixya

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