Question about Cobra 29 LTD CB Radio

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My needle if staying towards the middle of the meter without even keying the mic...can u help?

Posted by jeffandlinds on


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Hello jeff,
Welcome to FixYa.
My name is John, and I will be assisting you with your issue.
Some radio,s will do that from time to time. Try to thump it real
lightly, but do not break it. It will sometimes come unstuck, some others have to be replaced.
It is nothing to worry about, it does not hurt your unit. Try that and if it does not work, and if you want to replace it, let me know. We are always here to help you. Your Comments and
Testimony's are always welcomed here, and thanks for choosing FixYa today and in the future.


Posted on Feb 25, 2011


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1 Answer

On my connex 4600 turbo cb radio i keyed the mic up to say something and the meter light and the channel number got dim and sort of flickered and distored, also the needle in the meter didnt swing at all...

I would think it was most likely a minor short in your mic, maybe dirt or moisture. If the short was in the back of the jack, it would most likely do it all the time. Same thing for your coax, if it was pinched in the door, I would think you would have reception/feedback issues even without keying the mic....the same antenna/coax is used for send and recieve.

IF it does it again, try switching in another mic and see if it goes away.

Hope this is helpful.

Sep 15, 2011 | Audio Players & Recorders

1 Answer

Got a connex 3300HP has a ranger board and chipset won't modulate recieves fine keys up relay clicks needle doesn't move no voice either cant find schematics

You may have a dead meter.
Modulation is audio's affect on swing wattage or pep. Notice that needle moving more with your voice.
Dead key or carrier wattage is without your voice enhancing the power only with mic keyed.
I can only assume that the chipset you are referring to is an ic chip audio or pll which must be working if you are receiving audio.
Check your mic cord................ transmit and modulation and even your receive volume can be affected by the cord/mic plug solder joints or broken wires here. this is a similar radio the General Lee, Connex 3300hp and Galaxy hp2 share boards i believe dont hold me to that thou.

Aug 20, 2011 | Connex 3300 240-Channels Base CB Radio

1 Answer

My ANT light comes on when ever i push the mic button but my SWR isnt that high

The meter will be more accurate and an external meter will be even better. If they show good disregard the ant light it is adjustable. It may have been set to sensitive from factory. These erroneous SWR reading can be the side effects of a PEAK & TUNE if the coils have been spread but that should also show on meter.
SWR meter calibrations
  • Switch (S/RF SWR CAL) to the CAL position.
  • Push and hold mic button
  • While holding mic button adjust the SWR CAL knob so the meter needle swings to the CAL mark on the meter
  • While still holding down the mic button, set the (S/RF SWR CAL) switch to the SWR position, to read the SWR reading. Note: When switched to SWR position the meter needle should ideally be as far to the left as possible. Anything over 3 is not acceptable.

Jul 28, 2011 | Cobra 29 LTD CB Radio

1 Answer

No instructions were included in package.

swr meter operation as follows go to channel 1 flip the switch on the swr to cal key the mic adjust the needle on the swr meter to the dash mark at the far right of the meter use the dial on the meter to adjust then unkey your mic and flip your switch to swr re key the mic you should not be higher than 1.5 on any channel repeat the proccess on 20 and chan 40 if the swr is higher on 40 than 1 lower the antenna or trim it but only 1/4 inch at a time.

Mar 24, 2011 | Astatic (PDC7) CB Radio

1 Answer

How do i calibrate an Aries swr 420 meter for a cb radio

To calibrate the meter set the switch to FWD/CAL/REF and key the microphone without speaking into it. then turn the control until the needle is on CAL. Unkey the mic, set the switch to SWR and then key the mic to read the SWR.


Apr 16, 2010 | Radio Communications

1 Answer

When I key the mic the needle on the meter does not move I have power to the radio and the mic is new

Try putting it on cb not pa,see if you hear other people talking,now try it.....could be the mike is not wired right,or bad meter..Put it on channel 19,ask for a radio check,if someone answer,s you its ok, maybe meter not adjusted...hope this helps..

Feb 28, 2010 | Cobra 29 LTD CB Radio

3 Answers

Dont know how to use the swr meter on my radio

With radio turned on

1. Switch the first switch (S/RF SWR CAL) to CAL setting
2. Key mic up &
3. Turn SWR CAL knob while still keying mic until the needle is on the red CAL arrow at the far end of the meter scale. Unkey mic.
4. Switch the first switch back to SWR setting.
5. Key mic up again and record SWR reading and adjust as needed.
6. When done adjusting put switch back in the S/RF setting for normal operation.

Do not flip the switch with the mic keyed up.

Jan 19, 2010 | Cobra 29 LTD CB Radio

1 Answer

Radio stuck in transmit meter needle is slammed all the way to the right as soon as you turn unit on

Have you recently changed mics ? if so it is wired wrong, if not I would check for a shorted wire in the mic connector or the mic itself.

May 25, 2009 | Galaxy Radios DX- 88HL Base CB Radio

2 Answers

My Meter Won't Move

weather can effect your meter .Those meters are not very accurate just a base line get a good swr meter and then check it.If your getting good radio checks it could be the potentoimeter is dirty . Radio shack sells contact cleaner and lube try cleaning it . That might help

Jan 08, 2008 | Cobra 29 LTD CB Radio

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