Hi, i have an older set of uniden radios that i no longer have the manual for. one of them is stuck on a setting where i can transmit, but can't receive. anybody know how to change this? i'm not sure how old they are, or what model they are. i tried looking up the manual online, but could only find manuals for the new ones.

There is no "linking" of these radios. they simply have the ability to have silent receivers until a digital or subaudible tone is received that turns the audio on allowing you to hear the transmitted signal, this allows you to set the radio to only hear the correct transmitted signal...
http://www.manualslib.com/manual/733780/Uniden-Pmr845-2ck.html?page=15#manual

if you have a receive tone squelch or digital receive set you wont hear anything unless the transmitting radio is set to transmit that

Check Batteries swop the batteries around with each set.
Check antennas swop them about.
The set not receiving if possible check for a loose wire inside the set from the antenna connector.
Finally the set you say is not working press the PTT ( Tx button) with both handsets close to each other inches apart . How does the good set react?

Set up your privacy tones or adjust the squelch level to stop the static and bring the handy out of receive mode. Some models have a busy channel lock out, that if it beleives it hears something it will not let you transmit over the other station.

the 'privacy tones' need to be either A) disabled on both or B) set to the same code here's the manual
http://www.uniden.com/content/ebiz/uniden/resources/ownersmanuals/GMR3689-2CKom.pdf

go here for it
Atlantis UNIDEN manual

Possible programming problem. Your receive frequency may not be set the same as your transmit frequency, or your PL code may be set differently between the radios. Check your programming.

Best regards.

Hi,

Which radio are you referring to, the Pro 510e or the Pro 510xl?

In any event, to transmit and receive clearly depends on your antenna, it's location and it's surroundings and HEIGHT.

Radio waves on these radios depend mainly on line of sight and propagation factors, If you have an indoor antenna, that could be the problem, if it's an outdoor fixture, it needs to be in such a position so that the coax cable isn't being interfered with by another electrical fixture, the Height of the antenna, is most important, the higher, the better, taking in all these factors and a bit of try this and see approach should find a solution to your reception/transmition issues. That's part of the fun of setting up a base radio, experimentation, configuration and the results you want will be worth the effort.

I hope this has been helpful for you.

Cheers, Peter

Hello there:
You can find a local uniden dealer using google www.uniden.com and then you will see find a authorized dealer than all you have to do is call them ok

You may have a sub-channel/privacy channel activated. Unless the person/s you are trying to talk to have the same channel and code set they will not be able to hear you. Check your manual for specific instructions on how to reset it to the default.