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

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Poor sending and recieving

Very limited range of about less than a quarter of a mile

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Re: poor sending and recieving

In my experience, most of the time when you can't rx or tx more than 1/4 mile, the antenna is grounding out, the coax center conductor is broken, or the coax center condutor is shorting out to the sheilding.

Rollin CBs
Mt. Vernon, TX

Posted on Jan 23, 2008

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Re: poor sending and recieving

Make real sure that you have a good SWR for your antenna system. ( No higher than 2;0 to 1 ). To do this it will require an swr meter. A meter can be purchased at any CB Shop that sell finer products. If the SWR's are good, then you probably have a bad final or driver transistor in the Radio.
Good Luck
NC Electronic
Mills, Wyoming

Posted on Jan 07, 2008

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What is the range of the uniden black walkie talkie gmrs 520

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May 30, 2014 | Uniden Black Walkie Talkie Gmrs 520

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Transmits off frequency

did you put it on a frequency counter? they can be set back on freq. if you know how to set it. how old is it? I would send it back to where I got it and have them fix the problem.

Jan 23, 2013 | Cobra 148 GTL 120-Channels Base CB Radio

2 Answers

Does a midland cb 40 ch have a range for distance?

  • Hi, I can help.

  • In general a CB goes roughly 1 mile per watt of power. A Midland CB out of the box will get you about 5 miles. After a Peak and Tune, a Midland CB can get out around 25 miles. If you put an SWR/Watt meter inline you can tell how much your rig is putting out.

  • If you have any comments please feel free to leave them here.
  • Hope this helps and thank you for using FixYa.

regards, Tony

Sep 01, 2011 | Midland CB Radios

1 Answer

I can receive well, but have limited output..can receive from drivers over 10 miles, but when I try to talk back I only have about a 1 1/2 mile range I got a new power mic, but it doesnt seem to help......

Could be poor antenna, or not high enough on the vehicle.

Also most truckers have had their radio's peaked and tuned.

If this radio is stock its only putting out 4 watts, which should still get you about 8 miles.

I do not know what the modulation and AM power POT's on the board of this radio are.

You can take it to a truck stop that has a radio shop. they can peak it usually for less then $30

Oct 20, 2009 | Magnum S9 Base CB Radio

1 Answer

Cobra 132 recieves good poor send

Poor send? Is your modulation ok?
The biggest hurdle for good coms is the antenna, placement and proper tuning will make or break your CB.
Check your SWR, if you can't check it then another way to get an idea is to use your power meter.
It will show more power when the SWR is high, check you high and low channels for increased deflection. High on channel 40 and low on channel one would mean antenna needs to be shorter and the opposite for channel one. A balanced reading or slightly lower reading in the midband channels would indicate antenna working near optimum.

Dec 06, 2008 | Cobra 29 LTD CB Radio

1 Answer

Cobra 132 recieves good poor send

i would take it in and get a new diamond thats what it sounds like to me..

Dec 02, 2008 | Cobra 148 GTL 120-Channels Base CB Radio

1 Answer

Limited cb radio range on Kenworh t800 truck

I recall problems grounding the antenna on those kw's. May want to try a no ground antenna. Also the stock coax that comes with the truck sometimes gets broken or pinched. Go to a good shop, replace the cheap coax and grount the antennas.

Nov 26, 2008 | Cobra 25 LTD 40-Channels Base CB Radio

1 Answer

Codra 29ltd clas. trans and receve only at close range

Try a different antenna. In my opinion, Moonraker antennas are the best. However they are the biggest of all CB antennas. They're smallest antenna measures close to about 40ft long. They're made for long range communication. They are pricey but well worth it. I recently got a Moonraker for my Galaxy DX2517 base station, it has a 50ft metal whip with power supply box which increases the output power. I can talk all the way to canada just using the pure power of my radio, and I live in Virginia. I'm telling you, if you get a Moonraker, you're set for life. And about your radio problem, umm, it might be your antenna, sometimes when you have a dual antenna input, it messes with the modulator and the frequency amplitude. It's best to just have one antenna.

Hope this helps!

Oct 13, 2008 | Cobra 29 LTD CB Radio

1 Answer

My send is fuzzy and hard to understand. I recieve just fine

Perhaps you need to check your SWR? See the following link:

Jul 26, 2007 | Cobra 19 DX IV CB Radio

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