Question about Cobra 29 LTD CB Radio

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Is the little red antenna light on when i transmit

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Hi, my name is John. If you have any good audio, it should Blink when you talk bright, but still stay on....hope this was helpful.....Rate this solution on the four thumbs-up....John

Posted on Sep 08, 2010


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When I key the mike I get the red light.I have a galaxy979 and a no ground ant

there are two lights on the face of that radio near the channel selector.When you turn the radio on the top top light should be a greenish blue until you talk then it should turn red to let you know that you are transmitting . If the light below that one turns red at the same time then you have an antenna problem. Its not a no ground antenna its a no ground plane antenna ,you still have to ground it .

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Raidio will not transmit red light on top.small r next to channel

this means that you have an antenna system problem.Start with the obvious , your antenna. have you set the SWR on the antenna? Is it below 2.7 on all channels ? Are both red lights on now ? If they are and you have a decent match then check the location of the antenna make sure its in the most efficiant spot.Oh and make sure you have a ground wire to the antenna. If everything thing is ok aqnd you still have both red lights then the problem is with your radio and that you will have to taKE TO A TECH.

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1 Answer

Tx red light is use to show what

when you are not talking the light should be an aqua / green color.When you transmit it should turn red. if you see two red lights your antenna is out of match.As for your radio not get out you have to get a friend to listen on another radio and he will tell you if its working or not.

Jul 21, 2014 | Cobra 148 GTL 120-Channels Base CB Radio

1 Answer

Antenna red light comes on when mike is keyed. Radio checked, no problems. Installed in Mack 2012 Pinnacle Dump truck

there are two lights for the antenna.when you are transmitting the top light will change from green to red the bottom shouldn't be on.this is the awi light. it means there is a problem with the antenna system, and you should get it checked. It could be the antenna swr ,bad coax,or the radio.Since you can't do anything with the coax or radio it has to be done with the antenna. Get a real SWR meter and check the SWR or have a tech do it. If the SWR is ok then your antenna just might be in the wrong spot ,or it may need to be grounded A tech will tell you the problem as soon as he puts his meter on it.

Apr 17, 2014 | Cobra 29 LTD CB Radio

1 Answer

I can only hear the others. When I talk they can't hear and my red anntenna keeps coming on when I push button to talk.

Assuming the antenna is mounted and grounded correctly,when you try to transmit/talk does your meter needle move to the right with your voice,if it doesn't make sure meter knob is set to receive/transmit or mod[modulate] does it move to right now,if not make sure the mic gain knob is turned up or if it is a power mic,is it turned up&have a fresh battery.The antenna light could mean high swr readings which you will have to adjust by tuning the antenna with the radio meter or external meter,you can search swr adjustment on your computer if unfamiliar..some antenna warning lights are factory set too sensitive but most times are telling you there is a problem.If all is set&tuned properly and you still can't get a local signal to respond, your radios transmit finals could be blown,which you'll need a qualified radio tech to determine..Good luck& 73's

Aug 13, 2011 | Cobra 29 LTD CB Radio

1 Answer

Won't send out. I have replaced mike already.

if the Mic gain is up. and an antenna is connected. its possible that the transmit circuit is blown out. this is definitely the case if you have been operating the radio and the red ant lift has been lighting when you key up. that means your antenna was not tuned to the radio and your swr was too highroad. swr is standing wave ratio. basically if the antenna is not exactly the right length thenyou create a standing wave that does not leave the antenna and bounces back down the coax into the radio which destroys the transmit circuit. if when you key and there is no signal output then it is shot.

but make sure the cb pa switch is on cb.

Jun 15, 2011 | Cobra 29 LTD CB Radio

1 Answer

DX 2517 keys up, light turns red, audio shows on meter, and through talkback, but no signal at all. whats goin on?

You need an SWR-PWR meter ($20) to run between radio and antenna to see 1) if you are transmitting and 2) if the is a problem with the antenna (SWR). There may be a bad antenna connection or it is grounded out. If the SWR and antenna check out you may have damaged your finals in the radio.

Feb 25, 2011 | Radio Communications

1 Answer

I am occasionally transmitting and sometimes received. When I press the mic key the red light for the antenna comes on... what might be the problem? This is in a semi truck. Thanks

you have a antenna problem or coax problem the light coming on means your swr reading is too high. find you a cb shop they will adjustyour antenna for around 10.00 bucks... if yourepeatedly talk on it it will burn up your radio...

Mar 14, 2010 | Cobra 29WXNWST (40 Channels) 2-Way Radio

1 Answer

MIdland no sound s/rf dancing

may be u burned yr final transistors...check if yr antenna is well grounded and try just after this to transmit, if the indicator is not stable on the green area when you are in "am" modulation stop to try and bring to the assistance
rgds Stefano

Dec 17, 2008 | Midland 1001Z 40-Channels Base CB Radio

1 Answer

Cobra 29GTL Won't Transmit

if the red ant light comes on this means that you have antenna trouble either in the antenna itself or the coax but this should not have anything to do with the radio not transmitting. it sounds to me that you have a bad audio chip or a bad power output transistor. in either case you should really take it to a cb shop and let the professionals solve your problem, good luck!!

Aug 16, 2007 | Cobra 148 GTL 120-Channels Base CB Radio

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