My radio has been working fine until yesterday. I dont hear anything one minute, i turn it off and back on and hear static signal, when i key the mic and let go, i dont hear anything again. I installed a new mic, then installed a new antenae(the prior one was broken,thought that might be the problem), and then this morning a swapped by radio for a new one. reinstalled everything, and the problem is still there. I checked my ground to my battery as well. Pls advise.
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Perhaps it's a slow day? Start by turning the squelch all the way down until you hear static. Then, turn it up just enough to cancel out the static. It's possible that it got bumped or change somehow, and now it is blocking out the signals you want to receive.
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.
one more thing to check. i dont know what radio you have but try turning it untill you hear static. if its all the way the other way you may not hear anything, also turn up any RX or rec. knobs.
i have limited knowledge about whats going on, but i hope this will help fixya
turn the RF gain all the way up and leave it there. Also turn the squelch down until you hear white noise, then turn it up just until it goes away.
RF gain is how sensitive your receive is. The higher it is, the more range you have. There really is no need to turn it down ever, unless you are trying to not hear some one out in the distance. Normal operation, RF gain should be all the way up.
Now squelch is used to quiet non signal noise. Like white noise or interference noise, Or other radios with a really weak signal that you can't hear completely any way.
You just want it so it just quiets the fuzz noise. Depending on background interference and the amount of radio traffic, the may have to be adjusted to silence the noise you don't want to hear. When a strong audio signal is received, it will break the squelch, the higher the squelch is set, the stronger the signal needs to be to break it, otherwise it will silence it.
Check the squelch on your radio thats not recieving. If there is a monitor button ( when pushed you will hear static) try pushing it.. then get someone to call you so you can check if you can hear them.
On these radios you have 2 types of squelch....1 is called carrier squelch.... it basically opens when there is a strong enough signal. This lets you only hear strong signals and "squelch out" the distant ones and background static.
The2nd. is "tone squelch" ... with your radio they are often called privacy tones. If you have 2 radios set with the same privacy tones you will only be able to hear each other... only radios that are transmitting with that privacy tone will be heard on your radio. Its a high frequency tone that can't be hear by the human ear that gets "embeded" with the transmitting signal. The recieving radio hears it and opens the squelch.
So... if the radio thats rxing (recieving)your signal has its squelch set for just carrier squelch it will hear any signal thats strong enough to break the squech open.... basicaly any radio within a certain range. But if your radio (one with problem) has its squelch set for privacy tones you will not hear any other radios except the ones set with the same privacy tone.... the squelch will not open until it gets a tx signal with the right tone.... so if the txing (transmitting) radio is not using tone squelch but is using carrier squelch.... and the rxing radio is set for tone squelch... the rxing radio will not hear it.
With tone (privacy tones/codes) squelch you need a tone to open the squelch and then the audio can be heard... with carrier squelch the squelch will open if ANY radio is within a certain range.
Check the squelch setting on the problem radio... it could have a privacy tone set. Try pushing in the monitor button so you can hear static ( you want to hear everything including static) on both radios... tx on one radio at a time and listen if it can be heard on the other with the monitor button pushed.
If you can't hear any audio when the broken one is transmitting then it COULD be the mic.... if you can hear both radios with the monitor button activated than the radios are txing and have tx audio and are working... if thats the case its the privacy tones that are the problem.