Question about Cobra New-29 WX NW ST 40-CHANNEL NIGHTWATCH CB RADIO WITH SWR CALIBRATION & 7 WEATHER CHANNELS - CBR29WXNWST

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Cobra 29 wx st turns on when plugged in without turning the power knob on. any sugestions what this might be?

I have changed the grounded and the power sources and it still does it or it just doesn't do anything.. I put the plug in the back into it while the on/off knob is off and it would turn on automatically...

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  • 141 Answers

The weather channel board is causing that.. turn the weather channel selector to OFF

Posted on Nov 18, 2014

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Posted on Jan 02, 2017

  • 105 Answers

SOURCE: Cobra CB Radio 148 NW ST

The first thing to do is to check if your power wire actually has power to it. Do this with a test light or a multimeter. Given that the wire is powered, check to make sure your ground is good. Modern cars have so much plastic in them that grounds may be hard to find. The next step is to check the rig's fuse. Make sure the microphone is plugged in, too. If none of this helps, your radio needs repair or replacement.

Posted on Feb 17, 2008

wesmckay
  • 9 Answers

SOURCE: COBRA 29 WX NW ST

have somebody look and see if there are any bad solder joints inside the radio...

Posted on Jan 15, 2009

kb8dns
  • 494 Answers

SOURCE: excessive static equally on all chanels on cb

You should always connect the CB directly to the battery as the accessory socket is full of noise. You also should choose a better antenna as these small glass mounts cannot hear signals well and magnify local noise. AM (CBs) radios naturally pick up noise as it is the nature of AM signals. Use your squelch to lesson this but too much can knock out you reception.

Posted on Feb 14, 2010

kb8dns
  • 494 Answers

SOURCE: Cobra 29 WX NW ST Powers up automatically, will

These radios are constructed in a cheap way, not that they are bad radios, but the manufactures try to keep expenses down and the quality sometimes suffers. The problem may never show up but then there is a radio that just drew the luck and got the weak part.
The off and on switch controls the B+ line to the whole radio with a few parts placed before the switch. These parts prevent or limit the reverse polarity damage if the radio is hooked up "backwards". If it is a good design it works but cheapened line radios are not likely to prevent this.
The switch itself could be "welded" in an on state and I would suspect that the polarity diode is fused with possible addition of a filter capacitor. I cannot say anymore as I do not have the radio in front of me.

Posted on Feb 21, 2010

  • 773 Answers

SOURCE: what exactly does the anl nb/anl button do on my

ANL stands for "Automatic Noise Limiter" and NB stands for "Noise Blanker".

The ANL gets rid of a lot of interference noise caused by mechanical noise from motors and other electronic components in a car.

It also gets rid of noise from other sources of interference.

The NB is for extreme cases of noise, but can slightly lessen your receive sensitivity.


Basically both functions help decrease interference noise.

Posted on Nov 24, 2010

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1 Answer

I have a cobra 29 wx nw st cb radio I have power to cb and won't power up


Check for fuse, inside box, as well as outside under the hood. Check your ground wire, not connected...when your groundwire is not making contact to
the body or other metal.. this problem will happen, or your hot wire is not connected to your fusebox...trace your hot wire to see if it is connected, if not connect to fuse box, and this might solve your problem. Hope this help!

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Every time i turn on my cobra 29 wx nw st sound tracker it goes back off


Hi Davis, please post on CB radio forum, this is Radio scanner forum.

Cheers,
Peter

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The cobra 18 wx st is the worst radio Cobra ever made. I don't know why they still make it. It's not gonna do much no matter how much you tune it up. Its a bad radio.

Get a cobra 29, and turn VR4 all the way counter clockwise.
(this will not work on the 18)

VR2 is modulation in the 18 wx st. adjust it while checking on a watt meter to see when its all the way up.

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You probably don't want to hear this, but the cobra 18 wx st is just about the worst, and most hated radio ever made. Its a very poor radio.

to be very honest with you, you should get rid of that radio, or return it. Then buy a cobra 29 instead,

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Looking at the plug from inside the radio, with the nub facing downward, from right to left you have pin1 pin2 pin3 and pin4.

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Mar 24, 2009 | Cobra 29 WX NW ST 40-Channels Base CB...

1 Answer

Wx stations disappeared


They did not put all the plugs back in from the weather board. Part of what has to be fiddled with is underneath the weather board.

Open the bottom cover where the speaker is, on the right side you will see a board separate from the main board. Look for any plugs unplugged. Its probably one that got over looked.

If there are no plugs out, who ever you took it too may have turned something they should not have. most likely its a plug. Its probably the plug that runs the audio into the radio from the weather board. its working, the audio just isn't getting to the rest of the radio.

there are about 3 or 4 plugs from the weather board to the main board of the radio.

Nov 10, 2008 | Cobra 29 WX NW ST 40-Channels Base CB...

1 Answer

Cobra 29 WX


This "talkback" feature may be due to someone having modified the radio by adding a small resistor between the speaker circuit & circuit ground.Another cause could be the shield lead in the mike plug shorting to the plug itself.

Apr 23, 2008 | Cobra 29 WX NW ST 40-Channels Base CB...

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