Question about Cobra 148 GTL 120-Channels Base CB Radio

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148 GTL PROBLEM

I HOPE YOU CAN HELP WITH THIS PROBLEM.MY 148 GTL RECEIVE VERY WELL BUT JUST WONT KEY UP.WHEN I KEY THE MIC THE GREEN LIGHT ON RECEIVE JUST FLICKER AND DONT CHANGE TO RED THANKS FOR UR REPLY I AM YOURS TRULY D. CAMPBELL EMAIL WILDSPIDER105@YAHOO.COM

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  • Anonymous May 07, 2008

    I have the same problem, I thought it was a dead battery in my power mic, but the same problem still exists when a manual mic is installed. the first time the mic is keyed after powering up the radio, the transmite light illuminates, but after that is doesn't. This problem just started after about 3 years of service with this radio. No problems prior.

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Sounds to me like the final driver is blown, try replaceing it with a new one.

Posted on Apr 30, 2008

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1 Answer

Cobra 148 gtl-st wont transmit but receives great


Check first your microphone

• check if TX is engaging when PTT is pushed.


• check for continuity ( mic and cable )



If you have not done these steps,

try it first, or borrow other compatible mic for Cobra 148GTL

from your friends on air.

Jul 28, 2012 | Cobra 148 GTL 120-Channels Base CB Radio

1 Answer

Wy receive is low. it seems like i cant turn the volume up high enough. this is a side mic plug 148 gtl


Hi Light, my name is John. Welcome to FixYa. If that is the one I'm thinking about, might be a GTL or LTD. Turn the RF GAIN to MAX. Thanks for choosing FixYa......Happy holidays.......John

Dec 15, 2010 | Cobra 148 GTL 120-Channels Base CB Radio

1 Answer

I have a new cobra 148 with ssb, about 6 months old, while i was away there was a storm, now the radio doesnt work , recieve or transmit, i also have a cobra 29 ltd that wont transmit but it will recieve....


make sure the mic is good. If for some reason the mic went bad, it will not receive or transmit.

As for the one with no receive, it most likely needs a new final.

If lightning hit your antron, it would be in pieces.

Aug 02, 2010 | Cobra 148 GTL 120-Channels Base CB Radio

1 Answer

I have a corba 148 gtl when you key it moves no audio


Sounds Like you have Bad wiring in your Mic connection. Also if you are using it at home on a power supply make sure its regulated so to not get the Humming sound. Also what type of Coax Cable and antenna are you using? Also are you using it at home or in the Car? Have you tried a different Microphone? Hope this Helps. Let me Know.........

Jul 04, 2009 | Galaxy Radios DX-959 40-Channels Base CB...

1 Answer

Lose tansmit


u have a cold soder joint or a crack in the board get a sordergun and just resoder ares all aroun the mic input

Apr 03, 2009 | Cobra 148 GTL 120-Channels Base CB Radio

2 Answers

5 pin mic


All "older", "real" or "desirable" Cobra 148 GTLs came with side-mounted 5 pin microphone sockets. For wiring information, see...

http://www.offroaders.com/info/tech-corner/reading/mic-wiring.htm

Feb 06, 2009 | Cobra 148 GTL 120-Channels Base CB Radio

1 Answer

Cobra gtl 148 seems to have no power til i push on mic connecter.


cobra 148 shows no wattage output on external meter but does show good modulation.

Dec 08, 2008 | Cobra 148 GTL 120-Channels Base CB Radio

1 Answer

Cobra 148 GTL steady tone though speaker


try rerouting your coax cable and make sure it's long enough

Jul 07, 2008 | Cobra 148 GTL 120-Channels Base CB Radio

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