Question about Cobra 148 GTL 120-Channels Base CB Radio

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I have a phillipinnes made 148gtl at first transmit would wok intermittantly ,now if you let radio warm up it might work one time , recieve is ok i suspect it is not sending a carrier

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  • plumkrazie Nov 21, 2009

    radio will not transmit on sideband or am tx light illuminates and I have tried another mic

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Did you get it fixed? i have one with the same problem. keys but no power out.

Posted on Jan 24, 2010

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There are 2 finals in this radio. one for side band, and one for AM. So if it works okay on side band, and not at all for AM, then the final for the AM side is bad. Replace it.

Posted on Nov 20, 2009

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1 Answer

Good day I have an cobra 148 Gtl tx and rx a working but no out put


It might not seem obvious but on many, if not all, current CB radios have separate wires coming from the microphone for RX and TX. It seems like the mic wire for TRANSMIT may be open. It is a common failure.

Feb 28, 2015 | Cobra 148GTL

1 Answer

My cobra 148gtl sometimes will transmit and after a few minutes when keyed up will not transmit


try some canned air on the final to cool it down .If the radio comes on then you have the problem child.

Apr 16, 2014 | Cobra 148 GTL 120-Channels Base CB Radio

2 Answers

Cobra 148gtl off frequency on sideband transmit


There is nothing that you can do without a test bench for frequency testing and tuning.

Sep 21, 2013 | Magnum DeltaForce CB Radio

2 Answers

Need Cobra 148GTL with Cobra HG M75 pin-out color code


1audio. 1red
2shield. 2shield
3receive. 3blue
4switching. 4white
5transmit. 5black

Hope this helps

Jul 03, 2012 | Cobra 148 GTL 120-Channels Base CB Radio

1 Answer

No transmit on 148gtl


First is check to see if SSB transmits or not==if it does the AM regulator on side wall of radio is bad.

Second with a meter and no power on--test the driver and final for shorts or open.

If one is bad replace both.

let me know what you find.

Apr 29, 2012 | Cobra 148 GTL 120-Channels Base CB Radio

2 Answers

My new Astatic Road Devil will not transmit audio on my Cobra 2000, it came with a 4pin plug and I put on a 5pin 1 white(audio) 2 shield 3 black(recieve) 4 blue(common) 5 red (transmit) yellow(n/a)


recheck that you have the wiring correct. you will need the wiring of the cobra 2000/148gtl/grantxl... can't remember the pin outs. what you have posted is not the correct one??? i think.

Dec 26, 2010 | Astatic Road Devil RD104E CB Radio

1 Answer

Only side band receiver no am on 148GTL


Radio works on SSB but not AM?

Question here is it loss of transmit only on AM Receive?

If receive is good but no transmit on AM---I can tell you what transistor is bad

SD TECH

Sep 28, 2010 | Televison & Video

2 Answers

No recieve on virgin cobra 142 gtl,


seems to me that the audio ic of the cobra 148gtl brokedue sudden change of voltage from power suplly or flactuation. ta7222p

Jun 07, 2008 | Radio Communications

1 Answer

Neither Radio Transmits or Recieves


Have you checked that both radios are in the same Channel and the same Squelch Code? are the batteries ok? any rust in the battery contacts? Some FRS radios gets a Malfuntion, and the syntom is like that, check this first

Nov 26, 2006 | BellSouth 2231TE (22 Channels) 2-Way Radio

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