Question about Uniden Bearcat Pro PC68LTW 40-Channels Base CB Radio

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I can recieve but i cannot transmit

I can recieve tranmissions but i cannot transmit. When i talk in the mic i can see that it is picking up my voice but i am not heard on the other end. HELP

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Sounds like you might have a bad voltage regulator

Posted on Dec 16, 2009

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2 Answers

Why is humming coming from speaker when mic is keyed?


this is strange as most times if a proper transmit key is depressed , then the radio switches from receive to transmit , the mfg know this would cause some great squeal from receiver /transmitting so close to a receiver so the part that is the receiver is muted to keep this from happening , id say there is some fault in the part that does this muting of receiver

Apr 13, 2016 | CB Radios

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I can recieve other people, but when i transmit the tx light comes on, ican hear a bit of hash but no voice comes out


you will not hear what you transmit .does your meter move when talking into the mic

Jan 26, 2016 | Uniden CB Radios

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I have no recieve transmits fine it was working then i seen a flash and no recieve


Try other mics what happen to me was the wire came lose and hit pin 6 which is power pin it may just have burnt the wire in mic plug

Dec 02, 2012 | Magnum 257 CB Radio

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I can hear everyone talk to me but i cant transmit to them,they can hear me key up but no voice to them.i have checked all connections and grounds,still the same.


Mic may have audio wire broken in cord at mic plug wire solder connection.
Stock
1- Shield
2- Audio
3- Transmit
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notice the numbers on the black plug after you pull it out of the radio.

Sep 12, 2011 | Cobra 29 LTD CB Radio

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My grant has good mod on sideband but when i transmit on am i get a squeel like sound coming in with my voice but the squeel is louder then my voice. could it be a bad shield on my hand held astic power...


If you have talk back, that most likely why you have feed back. If its on a switch, turn it off. When it was put in, it was done too loud. You can also turn down the gain on the mic.

Dec 21, 2009 | Uniden GRANTLT 40-Channels Base CB Radio

1 Answer

My cb transmits with a very weak signal and won't recieve anything. The weather band recieves with no problems. I couldn't even pick up a signal on my SWR meter but a friend of mine tested it on his home...


There are a few things that could be wrong. If there is something wrong with the mic, you may not hear anything on the radio. but weather will work.

Other then that, the receive section of the radio could be blown.

Try a new mic, and if it doesn't work, then there is something blown in the radio. It needs a tech.

Sep 25, 2009 | Cobra 18 WX ST 40-Channels Base CB Radio

1 Answer

Can recieve but not transmit


The mic wires are soldered incorrectly. Get another cobra mic for that radio or have a qualified radio tech correct the wiring.

Apr 15, 2009 | Cobra 29 LTD CB Radio

1 Answer

CB Radio will receive but not transmit


Sound Like The Modulation Amp May Be Dead..
Or a Componet in The Mod. Section....You Can Pick up The Repair Manual..@ www.samswebsite.com For about $20.00...Good Luck

Feb 13, 2009 | CB Radios

1 Answer

Mic wiring for a cobra 85 base cb


Pin 1 is shield, thats the bare wire wrapped around the mic audio wire
pin 2 ic mic audio [usually white)
pin 3 is transmit or push to talk usually red
pin 4 is recieve or speaker complete usually black

Jan 08, 2009 | Cobra 25 LTD 40-Channels Base CB Radio

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