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Cobra 29gtl i have a cobra 29gtl with a uniden pc-424Ac board is that a good board and how would i go about peak and tuning the radio,and how many watts can get out of it

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Go to and youll find all the info you want.easy to get 25 to 30 watts if you know what you are doing Thanks...Dean

Posted on Mar 16, 2008


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2 Answers

Got a cobra 29 ltd classic dead keys 10 watts and swings back to 6 watts on an external meter any answers

Hi you have to make sure your antenna has 1:1 SWR reading improper use of antennas deplete the Effective radiating Power of Transmitting equipment such as the CB radio.

Mar 15, 2016 | Cobra Radio Communications

1 Answer

How to tune and peak a cobra 18WXSTII

should never tune.they are tuned from the factory.Now peak thats different.The only thing you can do is turn the watts up or down and turn the mod vr up. you need a meter to do this.A schematic will also have at it.

Feb 06, 2014 | Cobra 18 WX ST 40-Channels Base CB Radio

1 Answer

Can i peak and tune a cobra 18wx st

technically , yes legally , no. besides this is a false statement. A radio is already tuned when you get it by the factory. now the true part is the it should be tuned to specs otherwise you are possiably interferring with other operators on the amature bands 4 watts is max and 95% mod will give you plenty of swing.

Mar 11, 2012 | Cobra 18 WX ST II 40-Channels Base CB...

1 Answer

Doesnt transmit very good

First make sure your SWR is nice and low 1-1:5 is recommended and no higher than 2. You can loose up to 50% of transmission with a high SWR. Your set up is as only as good as your antenna. I like the Wilson model antennas myself but there are many good antennas out there. The radio you have may have never been peaked or tuned. Even new they are far from the legal limit or 4watts swing 12 watts PEP. Also, don't be discouraged by those saying you are not getting out. Most these days have a far more watts coming out of the back. So their standard may be different. You can take your radio to a licensed tech and have it peaked and tuned. With the radio you have, it may be more (in value) than the radio itself is worth. But you will get more power out of it. Good luck.

Jan 22, 2011 | Cobra 19 DX IV CB Radio

1 Answer

How do i tune my cobra 29

Depends on what you mean by "Tune"

If you are talking about aligning the radio, you need the factory service manual, a watt meter, volt meter and oscilloscope to align the radio.

If you are talking about a peak and tune, that all depends on what you want. If you are just trying to peak it out, the easiest thing to do with out having to know about what you are doing is to turn the modulation to max. In that radio you do that by turning VR4 all the way to the left. That will get you around 20 to 25 watts of modulation.

There is more you can do, but it gets technical. But over all you will be pleased with just the modulation increased.

Some times people have the radio tuned to be run on an amp, which is necessary so that you do not blow up the amp. This involves un-soldering parts and replacing them with other parts to achieve the desired dead key.

Oct 19, 2010 | Cobra 29 WX NW ST 40-Channels Base CB...

1 Answer

Not enough audio and i dont want a power mic i

Take off the cover, you will need a watt meter or mod meter to do this. On the circuit board, part side up, look for D11, and cut one end of it, hook up meter, key the mike and with a peaking or tuning tool, while saying aaahhhhhhh in a long and steady voice, tune L12,L13,L14 for highest peak, you can get the tool there also..put cover back on and enjoy.....hope this helps...

Jun 03, 2010 | Cobra 29 LTD CB Radio

1 Answer

My cobra 29 has a 75watt amp on the back how can i get more

If you're using the RFX-75 amp section. Then you'll need to make sure your transmiter section is tuned for full output. The last last unit I installed in a Cobra 29 LTD, the radio modulated right at 100 watts output.
Hope this helps,

Dec 22, 2009 | Cobra 29 LTD CB Radio

2 Answers

How do you tune and peak a cobra 29 ltd classic and how many watts will it put out after it is tunned and peaked

i would highly suggest you take it to a cb shop to get a cb tuned and peaked. before you do that though, make sure you have a good antenna system. a good antenna will have a much greater effect on your cb than tuning and peaking. as far as output, who knows? it all depends on the skill of the person doing the tuning. be warned that any output over 4 watts is illegal and you could recieve hefty fines if caught with an illegal radio.

Sep 23, 2009 | Cobra 29 LTD CB Radio

2 Answers

I also have another cobra 29 ltd classic and it works fine but i cant talk or hear what other factory cb's can hear, it is supposed to be tuned and peaked and i have a wilson 2,000 antenna, and i cant talk...

nearly all problems are caused by poorly tuned or untuned antennas. a good antenna system with a cheap stock radio will out perform a great tuned radio with a bad antenna system any day of the week. if you dont believe me, check the firestik antenna website's tech notes. or wilson's tech notes.

Sep 23, 2009 | Cobra 29 LTD CB Radio

2 Answers

Cobra 29 is one channel off, ch 7 is on ch 6 and so on

The radio needs to be tuned.  This should only be done by a licensed repair shop.  You will spend less money taking it to a shop than you will buying testing and tuning equipment needed to do it yourself, which would void the warranty.

Dec 11, 2008 | Cobra 29 LTD CB Radio

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