I have my radio hooked up in my jeep and i can hear other people talk but it seems that they cant hear me talking. Its all hooked up right. i checked to see if there was a tuning thing on it and there isnt. i was wondering why they cant hear me?

You will need to tell us more. What model radios are you using? Can you hear others talking but not your friend with the other radio? If you can hear other talking, the problem my be a defective transmit circuit on the friends radio. If you can not hear any one, you may a a defective receiver or broken antenna. Can the other person hear you?

get another radio thats hooked up and ready to go and then get your hand held and start talking.Now listen to hear if you come through the other radio.Simple

Check your Code setting. Both the frequency and the code must be identical for the units to communicate. Shut off any special features and keep the radios at a simple setting until you get communications back.

Your code (PL code, interference eliminator, quiet call) is not programmed the same on both radios. The Cobra appears to be set to open squelch (no code). Set your Motorola code setting to zero (off). This should solve the problem.

what is radio brand and model? we need more info like is it hooked up to power, is the antennae hooked up, is the correct microphone hooked up, is the antennae been SWR to the radio. worst case scenario the crystal and the pll chip are shot. or some bad solder connections. or speaker.

verify, either the operating frequency is not pair/same with the other radio, check the default frequency, tx/rx on the simplex mode should be the same frequency

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.

do you have a talk back modification you don't know about or there was one and someone didn't remove it right or the speaker was wired wrong check your radio ground .or try a diffrent mic.

And you know its not sending out messages because no one is answering you,right. Well ,maybe no one in your area is on the same channel as you are or maybe some one listening but they feel some one else will answer you. hook an external speaker to the PA side of the radio output and see if your voice comes through. Then if you bridge the speaker out put of the cb/pa you chould be able to get talkback. If you can hear yourself talk then your radio is getting out but the question then is how far? Have you checked your SWR reading . You should be below a 2:1 to get out with a decent signal but a 1:1 to 1:5 is best. Actually another radio tuned to the same channel as you , set up a few feet away,should pick up your transmit so you don't have to hook up talkback. If you can hear yourself talk then your radio is getting out its just no wants to talk at the moment.

Sounds like a bad or miswired mic. Try a new mic ( use the proper cobra mic ). If the problem still continues, check all the swiches on the front of the radio and make sure you don't have any cold solder joints ( broken lead to board connections ). Good Luck
Ed
NC Electronic
Mills, Wyoming