Question about Cobra 25 LTD 40-channel Classic CB Radio With Dynamike Gain Control

1 Answer

Its a cobra 25ltd when i key the mike sometimes it hangs keyed up and does it with defferent mikes so the mike is not my problem.

Posted by Anonymous on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Cobra Master
  • 1,795 Answers

Take some electrical spray cleaner and lightly spray the inside of the radio where the mic plugs in. could also be a keying diode.

Posted on Nov 25, 2014

6 Suggested Answers

6ya6ya
  • 2 Answers

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

Hi,
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.
goodluck!

Posted on Jan 02, 2017

  • 19 Answers

SOURCE: Cobra 29GTL Won't Transmit

if the red ant light comes on this means that you have antenna trouble either in the antenna itself or the coax but this should not have anything to do with the radio not transmitting. it sounds to me that you have a bad audio chip or a bad power output transistor. in either case you should really take it to a cb shop and let the professionals solve your problem, good luck!!

Posted on Aug 17, 2007

Benimur
  • 6966 Answers

SOURCE: RED TX and ANT light, Cobra 29

Hi,

Your post of 2 lights; 1 is to indicate that you are transmitting when keying the mic is normal. The 2nd indicating an antenna warning (or SWR) should be corrected. You are right in starting with the coaxial cable which of course would include the PL259 connector. Verify that there are no breaks, over-bended loop, exposed ground/shield and that the solder of the center wire as well as the braided shield/ground is in order.

If it is a mobile setup, further verify that the antenna mount (except when magnetic) is properly grounded to the body of the vehicle and free from rust/corrosion. In some instances, it is the antenna itself that need checking or even possibly replacement.

Alternately, if the needle doesn't swing to the right side of the meter when the mic is keyed, it is possible that your finals (2SC1306) needs replacement.

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

Good luck and kind regards.

Posted on Dec 06, 2007

  • 32 Answers

SOURCE: Old dynamike plus wiring for a super star 3900

1-Shield
2-White
3-Red
4-Black
Check the mike plug to make sure that none of the wires have broke off.I would also check the mike cable with an ohm meter.

Posted on Feb 02, 2009

  • 86 Answers

SOURCE: when i click the mic i get no transmit

If the receive works ok,sounds like a mic
problem,try another mic if you can find a
buddy who has a Cobra that may let you
try it most all Cobra mic will work but not all.
Good Luck

Posted on Sep 12, 2009

  • 1 Answer

SOURCE: when i key up the mike the tx/rx light and the ant

your swr setting are off wack fix your swr

Posted on Oct 09, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Does the green light turn red when I key the mike


Yes ,it must turn red when transmit.
you have to press the PTT and hold buttom to calibrate the SWR meter for readind.with the switch to calibrate(cal)

Nov 23, 2013 | Cobra 25 LTD 40-Channel CB Radio

1 Answer

I have a cobra 25ltd my dad gave me and just had it put in my husbands truck but i cant pick up anything. Was told it could be the antenna well $30 later still not getting anything, HELP someone


a couple of problems could be causing the problem 1. make sure squalch is turned all the way counter clockwise and the r-f gain turned fully clockwise. 2 could be a broken wire at the mike plug as these get a lot of abuse all the time and if the wire going to pin 3 breake the radio will not hve any receive . hope this helped.

Feb 21, 2013 | Cobra 25LTD

1 Answer

Have a sequel when keyed up


If this is a powered mike the modulation is set to high. If you have a standard mike check your settings on the radio, if that does not help sub another mike.

Apr 03, 2012 | Cobra 29 LTD CB Radio

1 Answer

I have a Cobra 148 mounted on the hump in a pickup truck and it works fine. Then I plugged in a old Turner +3 desk microphone and I get bad feedback when it is keyed up and I can also hear my voice thru...


You're most likely getting lots of RF feedback from the metal cab of your truck,combined with the real sensitive nature of the amplified Turner mike.I would put an old original Cobra (coffin mike) handheld mike or a Astatic Roadking 56 (RK56) on it.They are really hard to beat,especially when you have lots of feedback & squealing. I also have a 148GTL (malaysia made) that has a Turner +3 deskmike & it squeals in my truck but not in the house. The 148GTL has given me better service than ANY other radio I've owned.It has 120 channels (freeband) & upper & lower sideband. I think mine is a 5pin Cobra-type plug-in. Try a simpler mike & good luck. Squirrly

Mar 13, 2011 | Cobra 148 GTL 120-Channels Base CB Radio

1 Answer

When i key the mike the red light comes on but no


What kind of radio is this? If its a uniden or cobra it still could be a broke wire in your mic.It could also be either a bad soilder or voltage regultor.

May 08, 2010 | Radio Communications

1 Answer

Cobra 29 nw when you key the radio the swr meter doesnt move and if you move the swicth to cal you can adjust it with out keying the mike but has good recive any help would be good thanks dwayne


To check the SWR, you put the swicth on CAL and key the mike with mike gain turned down all the way,then calabrate it to the meter on the CAL scale,then swicth it to SWR before you unkey the mike, then what ever the needle falls back to, that is your SWR reading.

Apr 26, 2010 | Radio Communications

1 Answer

I just installed a cobra 29 in a customers truck. Radio gets power but cannot get any feedback


Make sure you have the radio on cb not pa, turn the squelch to the left, turn RF gain to max. check the mike and antenna, key the mike, does it key up?....hope this helps....

Mar 11, 2010 | Cobra 29 LTD CB Radio

1 Answer

Cobra 29 ltd classic


make shure that the rf gain on the front of the radio is turned up. if you have another mike that you can use on the radio.If the mike has a wire that has broke at the mike connector the speaker will not turn on when you unkey the radio.

Mar 12, 2009 | Cobra 29 LTD CB Radio

1 Answer

Radio stays transmiting after mic released


What happens if you "key up" and "let off" and the transmitter "hangs", you remove the microphone plug from the Cobra ?
Will it still be transmitting or will it stop ?
If it stops, the problem is in the microphone with a "hanging" switch which you can easily clean or replace.
Iif it keeps transmitting while the mike is disconnected, there is a problem with the Rx/Tx switching circuit. This needs further investigation by use of a circuit diagram.

Feb 13, 2009 | Cobra 29 LTD CB Radio

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...

Not finding what you are looking for?
Cobra 25 LTD 40-channel Classic CB Radio With Dynamike Gain Control Logo

Related Topics:

68 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cobra Radio Communications Experts

AnyMHz.com
AnyMHz.com

Level 2 Expert

500 Answers

Steve

Level 3 Expert

3287 Answers

Brad Brown

Level 3 Expert

15557 Answers

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

Answer questions

Manuals & User Guides

Loading...