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Cobra 29 LX LE antenna warning flashes when u key the mic and thiers no signal whats wrong

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I am having the same problem with mine....I bought it new and it worked fine for a week.. How did you fix yours?

Posted on Mar 28, 2012

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Posted on Jan 02, 2017

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2 Answers

CB warning antenna on a cobra 29 lx camo


You may have blown out the output transistor in the CB. Can you still calibrate the swr meter? The K 30 isn't really a very good antenna. The Lil Will isn't either. I'd try a K-40 or a better model Wilson antenna.

May 08, 2016 | Cobra Radio Communications

1 Answer

Antenna warning flashes when I key the mic on my cobra 29 lx bt


If the radio otherwise appears to be working OK and you're able to make contacts of at least 4 or 5 miles distant (car-to-car) and at least 10 miles mobile-to-base, then I wouldn't worry too much about it. By contrast if you're only able to talk to stations that are fairly close to you, then there likely is some problem that needs attention.

The warning light is not a precise instrument and is even less reliable that warning lights on the dashboard of your car. By coming on it is simply suggesting that there might be something wrong with your antenna. The most likely (most common) problem is a high SWR (Standing-Wave-Ratio) meaning that either you have the wrong antenna (one not made for CB) or that the antenna is not resonant (not the correct length for the channel or frequency you're using) or possibly that the antenna mount is not grounded to the body of the car or even that the ground lead (the shield) of the coax cable is not connected. Ground problems are very common with magnet-mount antennas. If you have a nearby CB service shop, (or a CB buddy with an S.W.R. meter) they might be willing to measure your SWR for you (never hurts to ask) and give you some help or advice for correcting it.

Aug 05, 2014 | Radio Communications

1 Answer

How do i repair finals in cobra 29 lx


first of all are you sure its a bad antenna. I can key the mic with no antenna hooked up and nothing will happen the the finals but you may key it down with a brand new antenna and burn them also.Lokk and see how they are connected in the radio before you take it out and replace it the same way.You may want to replace your driver also.

Jun 13, 2014 | Cobra 29 Lx Full-featured Cb Radio

1 Answer

Cobra 29 LTD LX LE vr pots


vr1 "s" 9 setting on the tx meter vr2 voltage setting vr3 squelch vr4 amc vr5 p4 display on tx signal meter.

Mar 22, 2013 | Cobra 29 LTD CB Radio

1 Answer

I have a cobra 29 lx le hooked to a francies 5.5 whip om my 2007 kw t 600 am getting anyenna warning both radio and antenna are new frustrated


Have the SWR or match on the system checked, high match does not mean a bad antenna but can be a open or short in the system for the antenna.

Dec 11, 2012 | Cobra 29 LTD CB Radio

1 Answer

Cobra XL 29 Anntena Warning Light


If you have a SWR meter.put meter in line with coax. Dubble check coax and make sure its not pinched,cut. Antenna mount is tight and clean. No electrolysis build up At connection. Warning light is coming on for a reason. something is wrong in between radio and connection at the antenna.

Nov 23, 2012 | Cobra Radio Communications

3 Answers

29 lx le new 200 wilson antenna new coax and radio .we set the swr with a good meter at 1.2 and the radio says 3 or so and the message on the radio says cb antenna warning.and we doudle check the swr with...


what kind of meter? I would go by what is in the radio unless you are using an analyzer.

You may also be getting common mode current. take 6 to 8 inches of coax and make a tight coil about the same size as a spray paint can. Hold it together with electrical tape.

Use the meter in the LX LE to set the SWR then check with the other meter.

Nov 16, 2010 | Cobra 29 NW CB Radio

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