My cb has a talk back button what is it for - Radio Communications

Is squelch turned too high that it is blocking too many signals?
Otherwise, it could be a faulty cable on the mic as the PTT button disconnects the speaker on the CB and a broken wire can cause the speaker to be disconnected.

Any radio can have Talk Back.. all it is is leaving the RX active on TX and the sampled audio goes to the speaker that you can hear....

That usually is for "Talk Back". When you speak into the microphone you should hear yourself in the speaker.

same thing sometimes happens to me. Usually it is because the person who is talking to you might have a weaker antenna. Sometimes people put a very strong transmitter with them and talk to people but you cant talk back.
So really they can't hear you good either. Just because you are too far away.

Try checking the SWR's on channel 1, 20, and 40. The SWR's will change from the low channels to the mid channels to the high channels. The key is to make sure that the SWR's are around 1 or less at all three points. If the light goes out when checking one of them, then the problem is most likely the SWR's. If the light stays on when checking these channels, the issue might still be the SWR's but I would look at the grounding on the antennas. When holding the talk button on the mic and switching from calibrate to swr, can give a false reading. This is due to the calibrate circuit remaining open until you release the talk button. Take the SWR reading by releasing the Talk button on the mic after calibrating then pressing the talk button again after switching back to SWR. This will be the most accurate reading. From everything you described, I would be looking for a grounding problem with the antennas or coax, possibly even a rub though on the coax somewhere in the dash.

problem may be the button loose connection to the main board...we can fix these radios. cb shop temple, tx on yahoo search. The button is connected in so it controls both sections.

You really don't want to have a loud talk back. Its usually controlled by your mic gain. the louder it is, the louder your talk back is.

Talk back is used so you can her how your audio is being transmitted. It makes a lot of sense when you have echo. use it to hear you echo to make sure its not too much.

The problem with a loud talkback is, if it is too high, you will get feed back in your transmit.

You should leave it where it is.

check your aerial for open/short circuit/power wiring to cb in truck/upgrade the fuse by 1 amp/mike wiring (tx/rx) if the cb shop could'nt find anything wrong then the faults in the truck/aerial/power? or the cb shops not up to much! you could have a faulty output transistor in the cb if all else fails?

THE TALK BACK VOLUME IS CONTROLLED BY THE MIC GAIN, TRY ADJUSTING YOUR TALK BACK VOLUME ABOUT TURNING THE MIC GAIN FROM 12 OCLOCK TO 6 OCLOCK, DO NOT WORRY YOU WILL NOT LOSE ANY OUT BOUND POWER UNLESS YOU TURN THE MIC GAIN BELOW 11 OCLOCK

What kinda radio?
what button?