Question about Cobra 29 WX NW ST 40-Channels Base CB Radio

1 Answer

Bad static I have mine set up with dual fiberglass antennas, i dont know what kind, they come stock with frieghtliners. Powerlines cause static bad enough that my squelch has to be turned all the way up. And stop lights i also have to turn down the gain. Also i don't know if this will help or is related but i never get a weather channel at all anywhere and i know a few come in where i am cause they came in in my old truckand on my stereo. That part doesnt really matter to me as i use the weather channels on my stereo, just thought it may help.

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert who has written 50 answers of more than 400 characters.


    An expert who has answered 200 questions.

  • Expert
  • 211 Answers

The Cobra 20 NW ST Wx is ( in my opion ) a very poor receiving radio. The ST is a bummer in all Cobra radios. The Static is apparent for the atmospheric conditioons and definally power lines and any high voltage will be picked up. When I get a customer with similiar complaints ( and there are a bunch ) I normally recommend that we turn the receive senativity down a bit. Sorry for this advise.

NC Electronic
Mills, Wyoming

Posted on Jan 07, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

Static noise rx

Check your batteries. Static can be a sign of a bad or low battery. Swap batteries between the units to see if the problem moves to another radio.
Also, check your antenna and antenna connection.
Best regards.

May 13, 2013 | Uniden GMR-325/2 2-Way Radio Walkie Talkie...

1 Answer

Having trouble setting swr .moved anttena up and down 1/4 inch at a time and there is no change

There are several things that can cause you not to be able to get an acceptable SWR.

The first is the most obvious. Poor antenna, or bad coax. Make sure your coax is good. Make sure the antenna is mounted in a good location.

Some things I have seen that cause this problem.

  • Wilson Little wil, almost impossible to get under a 1.6 SWR.
  • Fiberglass antenna's, a break in the wire near the top of the antenna. Will show the antenna as being too short, and adjusting the top will do nothing. This antenna is no good.
  • Common mode current. This is when the RF is traveling back down the outside of the coax, and or causes the coax to act like part of the antenna. SOLUTION. As close to the antenna as you can, take 6 to 8 inches of coax, and coil it into a tight coil, about the diameter of a spray paint can. In fact using a spray can to wrap the coax around works well. Use electrical tape to secure the coil so that it will stay tight and uniform. This will stop common mode.
  • missing foil/vinyl membrane on bottom of magmount antenna. This is essential for the antenna to see ground plane.
  • bad connections on coax connector.
  • Cracked isolator on stud mount.
  • incorrect procedure for taking SWR reading.
  • Poor location of antenna. E.g. antenna's load not above roof of vehicle.
  • Incorrect length whip being used.
  • corrosion of any part of the antenna system.
There are some cheap antenna's out there that you just can't get lower then say a 1.5 or worse, like the wilson little wil. Wilson makes great antenna's. The 500, 1000 and 5000, as well as their silver load antenna's are excellent. I have been able to get them all to at least a 1.1 SWR, and some like the 5000, and silver load fiberglass whip to 1.0 using an analyzer. The Little will is just a poor antenna. Anything under 2.0 SWR is okay of a barefoot radio, although I don't like going over 1.5 my self. A barefoot radio, will do a 2 swr all day. If the radio is stock, and not peaked and tuned, 2 swr is fine and won't hurt the radio.

You should always try to get the lowest SWR that you can in any case. The lower the SWR, the more RF energy is leaving the antenna. As well, receive will improve the closer you get to a perfect match. This is known as being "On Que".

Check everything I have listed that applies. And if nothing fixes it, you may want to try a different antenna. Some antenna's just don't work well on certain vehicles.

Oct 13, 2010 | Cobra 29 WX NW ST 40-Channels Base CB...

1 Answer

Kenwood RV7030 audio-video stereo has static without antenna

OK I am going to suggest two aerials for you. I would also NOT use the old cable as it will cause a lot of problems. It is best to replace it with the stuff they use for satellite dishes (see image).
The FM aerial will pick up signals from all sides. The TV aerial should give high quality signals and output for at least 5 sets.


Apr 06, 2010 | Kenwood KR-V7080 Receiver

1 Answer

The radio in my 2003 dodge neon has a lot of static on every radio station i have checked the antenna connection and it is good. also the cd player has started to skip more lately dont know if it is...

If the static doesn't change tempo with engine RPM, the unit is probably going bad. If it does your radio suppression is faulty. Could be ignition wires or the antenna going bad.

Mar 30, 2010 | 2003 Dodge Neon

1 Answer

Are stock honda accord 99 ex antennas faulty?

Look for a poor antenna cable end connection. AM radio is always worse than FM.

Nov 20, 2009 | Computers & Internet

1 Answer

Breaking up

Hello richf, With out a complete rundown of what you have, I'm sort of guessing here, but I'd say offhand that you are not using a base antenna. Most "full waves" are usually mobile fiberglass antennas. If this the case, Get the antenna above the metal siding, you might be getting a "reflection" back from the metal skin and causing a extreme high SWR which will cause damage to your radio, from a short period of talking. Either go higher up to clear the siding or put up a mast pipe and order or buy an Antron 1/2 wave base antenna. Those are a 3 piece fiberglass base ant. that is tunable for different situations. Run roughly about $50.00 but solves so many problems,,,Let me know more info and I'll try to help the best I can,,, Mechanic

Nov 01, 2008 | Cobra 25 LTD 40-Channels Base CB Radio

2 Answers

Terrible static

What type of antennae are you using? If you are using an aluminum or stainless steel ant, I would suggest switching ti a fiberglass ant. It sounds like the metal ant is picking up the ambient voltage from the lines. If you are using a fiberglass already let me know, as you may have a more serious problem. Good Luck and I hope this helpsd L8R

Sep 17, 2007 | Cobra 29 LTD CB Radio

Not finding what you are looking for?
Cobra 29 WX NW ST 40-Channels Base CB Radio Logo

113 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cobra Radio Communications Experts

Level 2 Expert

500 Answers

Brad Brown

Level 3 Expert

16803 Answers


Level 3 Expert

3289 Answers

Are you a Cobra Radio Communication Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides