Question about Cobra 29 LTD CB Radio

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No squelch when I key up the mic the rx and tx light is red

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Yep that should happen.
Green or no color in receive mode
Red when you key the mic to let you know when you are transmiting

Posted on Mar 07, 2009

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1 Answer

I need wire colors for CB microphone its a TRC


ALTAI PWR MIC - black/braid= earth, red=RX, white=TX, Yellow=MODASTATIC - blue/braid=earth, black=RX, red=TX, white=MOD, Yellow=Spare
SIRTEL ECHO MIC CBE 2002 - black/braid=earth, blue=TX, white=RX, red=MOD007 POWER MIC - brown/braid=earth, green=RX, white=TX, blue=MODSADELTA EC 980 - braid=earth, green=RX, brn=TX, white=MOD
or braid=earth, black=RX, blue=TX, white=MOD

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GL1800 Goldwing with BikeMP3 cb. Intermittent issue. Somewtimes will TX and RX, other times even with squelch set to 1, nothing. Pinched wire or CB unit itself.


You probably have a damaged mic cord. These are not overly rugged. You might want to replace the mic cable with a quality Beldon mic cable.

Sep 09, 2013 | Cobra 18 WX ST 40-Channels Base CB Radio

1 Answer

Wx works but no cb tx or rx


Antenna good? Receive meter move at all? radio show transmit when key mic? more you tell me the better I can help---I will assume you know enough to make sure RF gain and squelch are set correctly.

and cb/pa in right position........

Apr 27, 2012 | CB Radios

1 Answer

Put another **** on 29 ltd and lost key up and receive but it still lights up. What you thank is wrong. 5 different mics, all work in my other radios. I heard something chatter and it would not tx or rx...


Check to make sure that there is noting shorting out inside of the radio. some mic plugs can turn from overtighting the mic connector.. also check the pins they may be broke or compressed too much and won't make connection to any mic.. Pin 1 is ground and pin 4 is rx.. take a jumper wire across those and see if you get rx back. same for tx pin 3.. jumper pin 1 and 3 should have a key up. pin 2 is your of course audio. these should be first things to check. cobras unidens and galaxys, connex, genlee etc. are wired the same. midlands and radioshacks ge are different. so make sure your mic is wired for a cobra or galaxy also.. any mic will work on any radio. as long as is it wired to it correctly....

Dec 15, 2010 | CB Radios

2 Answers

When i key up the mike the tx/rx light and the ant


your swr setting are off wack fix your swr

Oct 02, 2009 | Cobra 29 LTD CB Radio

1 Answer

The ant light and the other light light up red when i key the kic


the tx/rx liight is green when your radio is recieving signals and turns red when you are sending signals. the ANT light is red when your SWR is too high (over 3)

1. turn the knob labeled swr cal all the way counter clockwise
2. set the rf swr cal switch to the CAL position
3 key up the mic and hold it while you rotate the swr cal knob until the needle reaches the swr cal postition
4. set the swr cal rf switch to the swr position
5. key up the mic while on chanel one (record the the number)
6. switch to chanel 40 key up the mic (record the number)
if the number on chanel one is lower than the number on chanel 40 then your antenna is too long.

Sep 14, 2009 | Cobra 29 LTD CB Radio

2 Answers

I have a Cobra 29 LTD with Bluetooth. I have no static no matter where I set my squelch and RF gain unless my noise blocker is off. Both my rx/tx and antenna lights turn red when mic is keyed. I have try...


if the antenna warning indicator is lighting during transmission then the antenna is either located and.or installed improperly or a defect exists in the antenna mount or the feedline itself, including connectors.

Jun 08, 2009 | Cobra 29 LTD CB Radio

1 Answer

Microphone


Hi,

If the radio receives OK and the TX red LED will not lit up when keying the mic, then it is a mic or mic cord or mic connector problem (or pin configuration). Internally to the mic, there is a switch for keying the PTT. This should be check down to the coiled cord to the connector.

If all of the above checks OK, then you would need to check the TX/RX regulator/switching circuitry.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Jul 08, 2008 | Cobra 148 GTL 120-Channels Base CB Radio

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