Question about Cobra 29 LTD CB Radio

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Calibration problem I changed the lower mast on my Wilson Trucker 2000 antenna and now I can't calibrate my Cobra 29 LTD classic radio for maximum performance. I needed to go from a 10" mast to a 5" mast. My antenna was hitting tree limbs and bending the whip. I am unable to move the antenna.

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Changing the length of the mast more then likely made your antenna to short, and therefore impossible to tune.

Posted on Jul 14, 2009

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How to set duel wilson 2000 swr


with wilson antennas you don't have to need to run duals the proper way to adjust the SWR is to get an external meter like a trucker 2000 and a dummy load. you hook the dummy load to one antenna while working with the other and then switch the operation around. this way both antennas are matched seperatly yet work together.

Oct 27, 2013 | Cobra 29 LTD CB Radio

1 Answer

I have had a Cobre 29 LTD Classic, a 29 NW LTD Classic and now a 29 LTD Chrome.It seems that the first two died because of possible bad antenna connections. I was able to calibrate the radios and adjust...


I see two possible problems. First, with a magnetic antenna it is difficult to get the proper ground for the antenna. Make sure the magnetic base is clean as well as where you place it. Second, try running your power lead DIRECTLY to the battery and not using the cigarette lighter. Hope it helps.
Tom

Feb 27, 2013 | Cobra 29 LTD CB Radio

1 Answer

I have had a Cobre 29 LTD Classic, a 29 NW LTD Classic and now a 29 LTD Chrome.It seems that the first two died because of possible bad antenna connections. I was able to calibrate the radios and adjust...


HELLO STAN FIRST HAS THE RADIO BEEN PEAKED AND TUNED? SECOND IS THE INTERIOR LIGHT IN YOUR PICK UP RIGHT BELOW YOUR ANTENNA,IF SO YOU HAVE A PROBLEM BUT EASY FIX THE WIRING GOING TO THE LIGHT ACTS LIKE AN EXTRA ANTENNA CAUSING YOUR ANTENNA TO RESONATE TO YOUR RADIO CAUSING THE A W I LIGHT TO COME ON MOVE YOU ANTENNA BACK A LITTLE FUTHER AND SHOULD BE GOODif you want to get a bettter antenna get a willson 500 mag mount far better

Feb 27, 2013 | Cobra 29 LTD CB Radio

1 Answer

I have a cobra 29 ltd the red antenna light was coming on replaced the coax with 18' coax have Wilson 2000 antenna calibrated radio red light still coming on and and swrs not staying consistent when...


Best way to locate the problem is connect the radio to a Dummy load known to be good====if swr still comes on it is in the radio--if not in the antenna system.

Apr 28, 2012 | Cobra Radio Communications

1 Answer

I want to calibrate my cobra 29 NW Ltd. Classic


Calibrate For SWR (Standing Wave Ratio) http://www.cbtricks.com/radios/cobra/29ltd_bt/graphics/cobra_29ltd_bt_om.pdf
The CAL is only to calibrate meter for a swr check of you antenna system it does not calibrate radio.

Jan 11, 2011 | Cobra 29 LTD CB Radio

1 Answer

Red antenna warning indicator light stays on


The red light is a warning of antenna mismatch; when you hold the antenna, you are changing the match between the CB's output amplifier and the antenna. Try it with a different antenna or pick up a 'test light' (or test load) for CBs from an electronics dealer, I've also seen them with CB accessories at truck stops. If the test light fires off and the red light on the CB is dark, the antenna you have is junk.

Aug 01, 2010 | Cobra 29 LTD CB Radio

1 Answer

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


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.....

May 28, 2010 | Cobra 29 LTD CB Radio

1 Answer

Calibrate LTD 29Cobra classic


The misconception is that you can calibrate a radio. You do not calibrate the radio. You tune the antenna. The calibrate knob on the radio is to calibrate the meter in it so you can check the SWR.

This article will tell you everything you need to know.

Nov 04, 2009 | Cobra 29 LTD CB Radio

1 Answer

Cobra 29 NW LTD Classic wont calibrate and red antenna light keeps coming on


The calibrate knob only calibrates the radios SWR meter, the owners manual will show you the procedure for that. If your ANT light is coming on, it is telling you that your SWR is to high, and may cause damage to the radio from reflected power. You should purchase an in line meter as the radios internal meter may be somewhat unreliable. You need to tune the antenna to the lowest SWR possible. Typically anything under 2.0:1 is acceptable. Radio Shack sells a meter for about $50, and is pretty accurate. Antenna mounting can also cause high reflection if it is to close to other objects. Google "CB antenna tuning" or read the instruction manual for you antenna, and you should be able to figure out how to properly tune the antenna.

Jul 07, 2009 | Cobra 25 NW LTD 40-Channels Base CB Radio

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