Question about Pyle pro Pwma80ufm 100 W Portable Pa System With Included Wireless Lavalier Microphone Fm Radio Mp3/usb/sd And Aux-in/out

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Can't get the unit to go into MIC mode...only radio. Help!

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Problem no squelch noise or speaker like its muted, but can hear weather ok shows receiving and ant ok


Since the radio cannot transmit on Weather bands, there is no need for the radio to detect if it is transmitting when receiving weather.
In CB mode (on CB channels) the radio will mute when transmitting. So... a guess is that it is muting, or transmitting all the time in CB mode. Check for a mic problem by removing the Mic from the radio ... if it receives CB with no mic connected, then there is an issue with the mic. Otherwise, unless the unit is in PA mode (public address mode) it is likely something internal and beyond the scope of this service.

Sep 08, 2015 | Cobra 29lx Cb Radio W/clock 29 Lx Lcd

1 Answer

I keyed the mic on my galaxy 959 and nothing happened. transmit light didn't come on, needle didn't move, nothing happened. It's like the mic isn't plugged in. I replaced the mic, didn't help. ?????


You might have it flipped to SSB instead of AM on one of the front mounted switched. It's the switch right under the freq. counter.

The switch right above the volume needs to be in the power mode, and the GNF switch needs to be in the CB mode-not on PA.

Aug 26, 2015 | Radio Communications

1 Answer

Stuck on rx mode


Rx is an abbreviation for receive. (Tx is transmit) There are a variety of reasons a radio will be "stuck" in Rx:
1) Another radio in the group is stuck in transmit and you cannot reply if your radio is receiving the other radios transmission.
2) Your radio is programmed for Rx only.
3) Your radio has a Tx problem such as a bad mic, or something covering the mic opening.
4) Your battery is low or bad. It takes more energy to Tx than to Rx.

Best regards.

Feb 07, 2014 | Cobra LI3900-2DXVP (14 Channels) 2-Way...

1 Answer

Audio is lost now and then on my bearcat 210xlt but every thing else works fine.


The most common cause for this problem is a broken wire in the mic cord. The mic switch is responsible for putting the radio in receive mode. If the TX wire is broken, then the radio will not go into receive mode. This usually happens because the mic cord is constantly moving around in the vehicle, and as well you are always pulling and tugging on the cord so you can talk in the mic. It happens.

if you have a spare mic, you can try it. If the receive works with another mic, then your stock mic needs repair, if you want to keep using it. Usually the wires break off at the solder joints at the plug, and is a quick fix with a soldering iron.

Or you can just use the other mic, or buy a new one.

Aug 14, 2011 | Uniden Bearcat Pro PC68XL 40-Channels Base...

1 Answer

Motorola cp200 attached microphone will send but will not recieve


Assuming you have the correct mic for the radio (HMN9030 or PMNN4013). It is possible
1) you have accidentally plugged the mic into the radio with the radio turned on, (this will cause the radio to receive but not transmit. It can simulate VOX.)
2) you have a bad audio accessory jack,
3) you do not have the mic plugged all the way in (you will feel a slight click when the mic is seated properly)
4) you have a bad mic or bad mic cord.

Possible solutions:
1) With the radio turned off, replug in your mic (feel for the click), then turn your radio on, and see if it works.
2) Try a known good mic from another unit.
3) If none of the above solve the problem, send your radio along with the mic to a repair facility and have the jack tested. (FYI: Flat rate repair on this style radio is currently around $85. Cord replacement on the mics can average $27 to $38.)


Feb 03, 2011 | Motorola CP200 Two Way Radio

1 Answer

Transmits but does not receive. cobra29LTD Can it be a active copponent


where is the RF gain? It should be all the way up.

The other thing that can cause no receive. Its a common issue. If you have a mic with a broken wire in cord, if its the wire for receive, then when the key is released the radio will not go into receive mode. The switch in the mic determines weather the radio is in transmit mode or receive mode.

So make sure the RF gain is on max, and try another mic.

Sep 26, 2010 | Cobra 29 LTD CB Radio

1 Answer

Cobra cb radio is putting out (broadcasting) but not recieving and its not a bad speaker


First off, This is the worst radio Cobra ever made. You have a bad mic, or a broken wire in the mic cord. Without a properly functioning mic, the radio will not go into receive mode. Thus no sound.

Sep 21, 2010 | Cobra 18 WX ST 40-Channels Base CB Radio

1 Answer

Radio squeal in am radio when out on the hi way , ok when park brake is applyed and stoped. loud squeal and whisle in am radio in a 2007 freightliner s/t power unit . someboby please help'''''...


Hi saskatoon, my name is John. Sounds like you have a mic. wire off the plug or loose.First try another mic. If its OK, then its the mic. Unscrew the mic plug from the radio, then remove the two(2) tiny screws at the end of plug, and one (1) tiny screw located about the middle of the plug, then carefully slide it backwards to expose the wiring, observe the wiring, if any wires are off, re solder them.........hope this was very helpful....

Aug 29, 2010 | Radio Communications

1 Answer

I have no sound, even when I key mic. The meter goes up one time and not the next.


This could one or more of the following problems. I'll start with the ones I feel are most likely the cause, but you can check them in which ever order you like.

When the mic is keyed, you should not hear anything from the reciever. The mic's PTT (push to talk) button switches the transciever from recieve mode to transmit mode, if it didn't all you would hear and transmit would be screaching feedback. Also, during the transmit mode, the radio's meter should switch from indicating relative signal strength (or "S" units) to power out where 4 watts AM should indicate full scale deflection of the meter.

This makes me believe that you've got a intermittent connection in the mic circuit. This can be anywhere from inside the mic, mic cord, mic connector and inside the radio - from the mic jack. The cord is supect as it is always being twisted, pulled, stretched and strained under extremes of temperatures and humidity.

You can check the cord by simply replacing it or with a dummy load connected to the antenna, see if keying the mic and shaking the cable makes the power meter jump or bounce. Twist and pull the cord over its entire length - but pay particular attention to the strain relief points near the mic body and connector as these are typical points of failure.

Check contacts inside the mic, between the mic cord and plug, mic plug and mic jack on the radio to be sure there is no oxidation or broken / shorted wires.

There may also be a problem with a blow speaker, which would explain the lack of audio on the reciever. Connect an external speaker to the external speaker jack (if provided) or open the radio to connect a speaker to the one under test.

Least likely - but still possible is a fault with the antenna coax cable, antenna and / or mount. Look for split, crushed, or otherwise damaged cable along the entire length. Pay attention to pinch points, etc. Repair or replace as needed. Look for oxidation build up between the antenna and mounting threads - clean as best you can or replace. Check the coil (if any) on the antenna. Broken, burnt, etc.insulators over coils are indicators of a problems. Again, repair or replace as needed.

I hope this helps you identify the source of the problem - good luck!

Oct 30, 2009 | Midland 1001Z 40-Channels Base CB Radio

9 Answers

Mic wiring diagram


Want to wire cobra mic to a uniden washington radio

Nov 20, 2007 | Radio Shack TRC-447 CB Radio

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