Question about Cobra 29 LTD CB Radio

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

I have a 29ltd classic with a super tune and the stock mic. at close range of a 1/4 mile or less I can pick up just fine and I can send even better. But further than that I can pick up to about 1.5-2 miles but I can just barley send. When I key the mic. up swr goes to 6 on the meter and the ant lite comes on every time I key up. I have checked all the connections in the case and even took it to a cb shop who sed it all looked good just to replace the antina with a better one was using 2 freightliner antinas. I have a 9 foot coax cabel that is new ran through a wilson T-connector. When I had it tuned about a year ago it worked greate but after leting it set a whyle It doesent want to work thanks for any advise you can give me. Also what do you think about the antinas that they clame are rated at 200,000 wats are they worth the money or not? Thanks agen.

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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!

Posted on Oct 13, 2008

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1 Answer

Cobra 29ltd CLassic, TX power and audio is ok, volume from spkr is good, squelch works but no cb recieve.


Try a new Mic. Make sure its a working mic. If you have a bad mic, the receive will not work.

Aug 22, 2010 | Cobra 29 LTD CB Radio

1 Answer

29 LTD CB Radio: all i have is a new 29ltd with a will 2000 ant whe...


Well, i,am wondering.what kind a problem you having.......all looks good to me....just key the mic.....and say Hi ....enjoy...........

May 18, 2010 | Cobra 29 LTD CB Radio

1 Answer

I have a Cobra 21- 23 channel CB and the wires pulled out of the plug. The mike wire has red,yellow black,blue,whiteand a ground. My plug has only four prongs to solder to. What four colors do I use?


Hello there
Here is the diagram for you
Cobra 29LTD, 29LTD ST, 29WX ST
Documentation Project
CBTricks.com

TIPS:
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If the files with jpg.gif or gif.gif icon will not display see the Site FAQ for help on printing, viewing and using this information.
25ltd_st_sm.jpg
Click Picture to See Close-up
cobra_29ltd_st_29wx_st_side.gif 29LTD ST Owners Manual pdf_1.gif
29WX ST Owners Manual pdf_1.gif
DIAGRAMS
29LTD ST Schematic Diagram pdf_1.gif
29LTD ST Schematic Diagram gif.gif
29WX ST Schematic Diagram pdf_1.gif
WX Schematic Diagram pdf_1.gif
29LTD, 29LTD ST, 29WX ST Factory Service Manual pdf_1.gif
Page 1 to 11
Page 12 to 34
29LTD Factory Service Manual pdf_1.gif
29LTD
29LTD Schematic Diagram pdf_1.gif
29LTD Schematic Diagram jpg.gif
29 LTD Classic Schematic Diagram pdf_1.gif(Courtesy of Rick Jackson)



Mic Wiring
Stock
1- Shield
2- Audio
3- Transmit
4- Receive
Astatic (4 wire)
1- Shield
2- White
3- Red
4- Black

Astatic (6 wire)
1- Shield & Blue
2- White
3- Red
4- Black
Yellow NC
Daiwa EM-500
Cobra CA Series

1- Shield & Black
2- Red
3- White
4- Blue
Galaxy DC-521S (4 wire)
1- Shield
2- Yellow
3- Red
4- Black
Galaxy CB-660EI
1- Shield & Black
2- White
3- Red
4- Blue
Sadelta
1- Shield
2- White
3- Brown
4- Green
Turner
1- Shield & Red
2- White
3- Blue
4- Black
Yellow NC

Nov 17, 2009 | Cobra 29 LTD CB Radio

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

How to reach out farther.


Well, it probably already has been peaked out. With out knowing what has been done by some one else, I cannot recommend any modifications to the radio. there are some mods that conflict with other mods.

Older side mic radios can possibly be really loud radio's. It needs to be modded by some one who knows what they are doing. Little work to the transition line, and a bit to the audio section of the radio.

CB radio's work by line of site. More range comes from less obstructions. Hight is might. If its a base station, the higher the antenna, the farther you will get out.

If its on a vehicle, just use a good antenna tune to the best SWR. Other then that, the only other thing you can do is use a linear amplifier, which can be expensive, and the radio needs to have a low dead key so it will not blow the amp.

more power will get out better, but if you are behind a hill, or mountain, or in a valley or something, it won't matter how much power you have, because your signal is line of site.

Oct 02, 2009 | Cobra 29 LTD CB Radio

2 Answers

I need the manual/s for a Cobra CB radio, 29LTD Classic,ser#105129711,manufactured 5/01. Thanks for any help you might have, This radio has a built in SWR meter and I need to know how to tune it or do I...


1) push the button marked S/RF / SWR / CAL to CAL

2) Hold in the button on the mic

3) Turn the SWR CAL knob until the needle is over set to the far right of the meter

4) flick the switch (in step 1) to SWR

Your SWR reading will be displayed. The more to the left the better..

Jun 22, 2009 | Radio Communications

1 Answer

Feedback


Assuming you have a good SWR, either ditch the power mike or the truck.

Aug 23, 2008 | Cobra Radio Communications

2 Answers

T 5000 (Talkabout Hand held Radios)


Hi Mark,

I understand your concern with the actual range of the Motorola T5000. Being UHF radios, they are severely limited by any obstruction in between, be it trees, buildings, hills, foliage, terrain and any others that would block "line of sight". Additionally due to the inherent design restrictions imposed on these radios, the FRS channels are limited to pushing out 0.5 watts making the GMRS channels better choice since the radio will be transmitting at 1 watt. To my knowledge, channels 8 - 14 are FRS only.

Possible things you can try to improve transmit distance are:
1. use AA Alkaline batteries instead of the rechargeable ones;
2. disable or minimize settings of interference eliminators, Quiet Talk, noise filters, coded squelch or CTCSS;
3. replace the stub antenna with a Larsen Quarter wave. You may need to install a BNC mount to accommodate the Larsen. Incidentally, this will also improve the receive range and not only the transmit.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Mar 19, 2008 | Motorola T5000 Two Pack 2-Way Radios with...

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