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I just picked up a Cobra 18 ultra CB Rig at a Farmers Market, and would like to know how to install it in my 2007 GMC Denali?

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All you need to do is find a continuous live 12v feed, usually the cigar lighter, join the red wire from the cb, to this feed, and the black wire from the cb is the earth, and fit a mag-mount cb arial

Posted on Jul 31, 2009

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Have a cobra 148 boughtat local market d expect much told it was a fm rig so i have recieve i have a reverse tx key it is uniace mic 4 pin a question of reversing tx pins in mic many thanx martyn

Go to go to radios and schematics then go to C look for Cobra look for 148 then from there get the mike wiring diagram and you should be in business.

Nov 23, 2016 | Cobra Radio Communications

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Cobra 18 wx st. peak and tune.

the only thing you can do is turn up the mod vari and thats it.

May 22, 2014 | Cobra 19 Ultra II CB Radio

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Hello---- The Problem: Immediately after I power up the Ultra II, the channel indicater lights up, but only for about a half-second, then quickly dims out completely, and stays out. There is no static

It could be lots of things, display is failing, resistor network to display is bad, or cold solder joints, cable to display, driver to display going bad or caps bad, or maybe menu is set to low for display, need to see rig to decide.

Jan 17, 2014 | Cobra 19 Ultra II CB Radio

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How to pick up cellphone conversatons on a cobra 19 ultra 111

you shouldn't be able to but if you do then take it to a tech and explain it to him and he should be able to fix it.

Jan 02, 2012 | Cobra 19 Ultra II CB Radio

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I want to know how to tune my cobra 19 3 ultra cb so that i can recieve and transmit

you can't tune the radio. You must tune the antenna. I have a generic thread which explains everything you need to know about tuning your antenna.
See here. Hope this helps you.

Aug 22, 2010 | Cobra 19 Ultra II CB Radio

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Not sure how to use the swr meter on my cobra nw

The SWR meter connect between your antenna and your rig,
So the Out of the rig, goes into the SWR meter, and the antenna plugs into the SWR meter.

Jan 19, 2010 | Cobra 29 LTD CB Radio

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My 18 WX ST Cobra CB radio will allow me to receive sound from the 3 weather stations it has on it, but I cannot pick up sound from other CB radios. help please?

get an swr meter and check your antenna first. if good problem may be in the circuit board.. they are famous for loose IF, TX mixer boards. or call us

Nov 03, 2009 | Cobra 18 WX ST 40-Channels Base CB Radio

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I have a coba ultra 19 iii in myt truck what is

You need to buy an antenna that is designed for use with a CB. A couple of good ones are the Wilson 1000, Wilson Lil' Wil, K30, K40. You will only pick up "everything" within the 40 channels with that radio.

Jul 09, 2009 | Cobra 19 Ultra II CB Radio

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Installed a cobra CB ultra III on a motorcycle

The external speaker jack was not designed for a head set. It has too much power it over loads head set. You need to solder a resistor in line with the negative wire. You will have to experiment to see which value gets the audio just right for the head set you are using.

Jun 13, 2009 | Cobra 19 Ultra II CB Radio

4 Answers

Cobra 18 wx st cb problem

Sounds to me like your finals in the rig have blown stopping you using the CB mode, Either that or you have a loose connection on the power output inside the radio.

Mar 15, 2008 | Cobra 18 WX ST 40-Channels Base CB Radio

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