Question about Cobra 29 LTD CB Radio

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I have a cobra 29 ltd and sometimes i get some noise and sometimes doesnt i can here voices and its clear but i drive like 1 and a half and i lose that voice what would i need to do for the radio not to do that

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Swr need checking this will sort out two problems one ariel 2 ariel wire, making sure the needle is as low as possible around 1.5 or lower is best. if on a vehicle move the mount till you get the lowest reading.next check mic for break in wire and third check wire on speaker for dry joint on wire from cone to pins and also wires from rig to speaker last heck squelsh has not bee turned up and the audio is break because of a break ithe ariel cable

Posted on Jul 25, 2009

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What kind of antenna? How is this mounted? What type of car or truck are you using on? Antenna is the key to any radio.... Let me know some info I'd be gald to help...

Posted on Jul 23, 2009

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1 Answer

What is a voic box on a cobra 29 ltd? What is a good antt combo four a 29 ltd?


Cobra's LTD 29 model Citizen's Band radio features the full 40 channels allowed and a heavy-duty microphone. The radio provides 4 watts of AM radio frequency output with a switchable automatic noise limiter and noise blanker. Other features include Cobra's Delta-Tune function. Making a Cobra LTD 29 hear and receive better involves making changes to the radio's settings, including the settings specific to this brand.
M/F Turn the switch labeled "NB/ANL, ANL, OFF" to the "ANL" position and try the transmission again if noise is affecting reception. "ANL" is an automatic noise limiter function and reduces noise caused by the vehicle's electrical systems and electronics.

M/F Switch to "NB/ANL" to activate the noise blanker, which may also reduce noise if you continue to have problems. It's an RF noise filtration function and will help with ignition noise.

M/F Adjust the "RF Gain" knob by turning it clockwise to increase gain in weak signal areas if you have problems hearing radio traffic.

M/F Set the "Delta-Tune" function to capture a more listenable signal and get rid of adjacent channel noise. Rotate the knob labeled "Deltatune" to the center position for best tuning. Try micro-adjustments to the left or right as well.

M/F Turn the volume up if you still can't hear and as with any CB radio, adjust the squelch if the radio is noisy when there's no traffic. Turn the knob labeled "Squelch" all the way to the left to receive all signals, including noise and turn the control clockwise until the background noise stops. You will be able to hear the strongest transmissions without having to listen to weak signals and noise.
The service manual can be found here

Jan 23, 2013 | Lands Phones

1 Answer

When do you know if you have a decent radio


The 29 has a built in SWR meter--check the match to make sure it is below 2 (lower the better).

The radio can be peaked for better than factory audio.

If the squelch is up too high you will not hear people below a certain signal level---in your case set it so you hear who you want to and not jokers.

RF gain lowers signal the radio sees for receive.

The stock mic will work but make your voice somewhat flat sounding---a power mic or having the mod limiter removed will make the radio and your voice louder.

Let me know if questions.

Jun 10, 2012 | Cobra 29 LTD CB Radio

1 Answer

Cobra 29 ltd classic someone messed with all the lil screw ins and gave it to me, problem its having is , you hear some background white noise, try to key up but no TX? the dead key drops altho talkback...


That will need an oscilloscope to get it back right. we can fix for you. wouldn't cost much if all it is just out of alignment and nothing is broken...

Jan 02, 2011 | Cobra 29 LTD CB Radio

1 Answer

I have a cobra 29 ltd chrome and it making a lot of static noise while driving or idling. it transmits and recieves fine though


Hi, my name is John. Welcome to FixYa. Try running your power strait from the battery, that will bypass a lot of your noise. RED (+) ground (-) . Thanks for choosing FixYa....John

Nov 30, 2010 | Cobra 29 LTD CB Radio

1 Answer

When the mike is keyed to TR my audio comes thru the speaker. Cobra 29 LTD Classic. Best Regards Jim


If your voice is coming through the speaker when you transmit, it means you have talkback installed. If you don't like it, take it to a reputable CB shop and ask them to remove it.

Aug 06, 2010 | Cobra 29 LTD CB Radio

1 Answer

Road noise


You will need to install a noise filter, you are getting interference from the Alternator in your vehicle.

Jun 19, 2010 | Cobra 29 LTD CB Radio

1 Answer

Cobra 29 cb calibaration


bad ground but the time of day is also a factor. If you are trying to talk when there is a lot of ground noise you may not get out more than a half mile or so.

Jul 29, 2009 | Cobra 29 LTD CB Radio

1 Answer

Cobra 29 LTD Bluetooth


You got your radio peaked? Most likely, however, the pot for the antenna warning indicator is VR6. I always check that after peaking a radio.

Jul 28, 2009 | Cobra 29 LTD CB Radio

1 Answer

Cobra 29 nw ltd won't transmit


Have you cracked the radio open yet?  check for loose connections etc.  get back to me if that doesnt yeild any results

Dec 23, 2008 | Cobra 29 LTD CB Radio

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