Question about Cobra 29 LTD CB Radio

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I have acobra classic 29ltd key mike ant lights up replaced stud

Antenner and coax still lights up any advice? I am a trucker Ilive with the CB

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First thing, you need to check your SWR, you must have a SWR meter to do this. If you are a trucker, you can get it checked at any CB shack, radio shack, etc, they will check it for free. Next, make sure the antenna driven element is clear of any metal blockage, and that it is getting a good ground at the base, don't know what kind of antenna you using, but the Wilson 1000 is a good one to use, install in midle of cab.........hope this was helpful.....

Posted on May 29, 2010

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1 Answer

I need the wiring for the volume switch for acobra 29ltd classic


find a friend with the same radio and match your wireing up to his

Jun 05, 2013 | Cobra 29 LTD CB Radio

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I have a cobra 29 ltd classic and the swr light comes on during key up of the mike and i have tried another antenn and it does the same thing with it now i have the same radio in my truck and it is fine...


I have you had the radio peaked? If so this could cause that problem there is a can in the back of the radio that can turn it off. But if you haven't then get your SWR checked.

Aug 16, 2010 | Cobra 29 LTD CB Radio

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29 LTD CB Radio: all i have is a new 29ltd with a will 2000 ant whe...


Well, i,am wondering.what kind a problem you having.......all looks good to me....just key the mic.....and say Hi ....enjoy...........

May 18, 2010 | Cobra 29 LTD CB Radio

1 Answer

I have a Cobra 21- 23 channel CB and the wires pulled out of the plug. The mike wire has red,yellow black,blue,whiteand a ground. My plug has only four prongs to solder to. What four colors do I use?


Hello there
Here is the diagram for you
Cobra 29LTD, 29LTD ST, 29WX ST
Documentation Project
CBTricks.com

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cobra_29ltd_st_29wx_st_side.gif 29LTD ST Owners Manual pdf_1.gif
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29LTD ST Schematic Diagram pdf_1.gif
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29WX ST Schematic Diagram pdf_1.gif
WX Schematic Diagram pdf_1.gif
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29LTD
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29LTD Schematic Diagram jpg.gif
29 LTD Classic Schematic Diagram pdf_1.gif(Courtesy of Rick Jackson)



Mic Wiring
Stock
1- Shield
2- Audio
3- Transmit
4- Receive
Astatic (4 wire)
1- Shield
2- White
3- Red
4- Black

Astatic (6 wire)
1- Shield & Blue
2- White
3- Red
4- Black
Yellow NC
Daiwa EM-500
Cobra CA Series

1- Shield & Black
2- Red
3- White
4- Blue
Galaxy DC-521S (4 wire)
1- Shield
2- Yellow
3- Red
4- Black
Galaxy CB-660EI
1- Shield & Black
2- White
3- Red
4- Blue
Sadelta
1- Shield
2- White
3- Brown
4- Green
Turner
1- Shield & Red
2- White
3- Blue
4- Black
Yellow NC

Nov 17, 2009 | Cobra 29 LTD CB Radio

2 Answers

Cobra 29 ltd classic ant light


Your SWR is probably NOT fine. You need to use an external meter if you have had work done to the radio. Especially if you have had a swing mod done to the radio. When you do this, the dead key of the radio is lower then the calibration knob on the radio can adjust for. It will always come up lower then it actually is.

Your radio might have been fine before the work was done on it because it was putting out very little power. Now you are most likely putting out 50 watts or more. Big jump from 4 watts.

When your raise the power in a radio, you will notice more when the antenna is not properly tuned.

In most cases with a stock CB, even when the antenna is not even near tuned, you will get a reading less then 1.5 anyway.

the more power you put out, the more important it is to have a good match.

But an external SWR meter, and check it. be careful if the ANT light is on.

You might also want to check your coax, connections to it, and your antenna for anything wrong.

Apr 22, 2009 | Cobra 29 LTD CB Radio

1 Answer

Cobra 29ltd


You have antenna or Coax Problems...

Apr 17, 2009 | Cobra 29 LTD CB Radio

1 Answer

Cobra 29 LTD Classic not transmitting or receiving


ant. light should only come on if you have a high vswr a bad thing did you check that cb/pa switch is set to cb check your swr this is not a good place to mount ant. as it is close to metal of back of cab

Dec 20, 2008 | Cobra 29 LTD CB Radio

3 Answers

Red ant light


The red light always comes on while mic is keyed. It is designed to do that. It will blink on and off while mic is keyed if there is a SWR problem. This is explaned in operaters manual.

Sep 24, 2007 | Magnum S9 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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