Question about Cobra 148 GTL 120-Channels Base CB Radio

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Old 148gtl dx radio is quiet on receive

Got this radio from a mate the only problem is every body sounds quiet, same if i use ex speaker, the only mod it has is an eprom, any ideas would be great thanks.

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See my other post to others about you soft output (voice)
CHEERS FLYINGFOX@PEOPLE.NET.AU

Posted on Jun 22, 2008

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Will a cobra power mic cure the low mod on my cobra 19 dx iv eu or will it blow the front of the rig


that is simply bs, Ham radio shops rarely like CB people (I am a long time cber and also a ham.

On that radio there are two things you can do, look for the mod limiter and remove it or another more simple thing:
This radio comes with a 1000 ohm element in the mic--like speakers---Get a older or new 500 ohm microphone and wire it or have it wired for the 19 dx, it will make a big difference in how it sounds.

I not only worked on those radios but sold them in a shop I owned.

You might find a used mic that's 500 ohm, it is usually stamped into the back case of a mic.

Dec 19, 2012 | Cobra 19dx Iv Eu Multiband Am Fm Cb Radio...

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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

How much do thay cost


They are no longer made. ebay it. for a used model don't spend more than $150 for one. Even when they were new they were barley over $250... I can put you on a list if you want me to find one for you I have several customers on a list looking for cobra 148gtl old ver. and the 99v's.....

Dec 31, 2010 | Galaxy Radios DX-99V 40-Channels Base CB...

1 Answer

My 148gtl has no audio on rx. the tx is good with good mod.


this could be a number of things ,firstly check wirering at speaker check that jack at rear is not faulty if all fails its more than likely the audio chip has gone and will need replacement look it up on youtube you will find lots of info there

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

2 Answers

Popping through speaker then no receive sound but signal is their. also lost modulation but output power is their. galaxy 88


most likely you need to replace the mic. and maybe the speaker as well. how can you be sure it does not transmit when noone can answer you since you cannot hear them.

Aug 29, 2009 | Galaxy Radios DX- 88HL Base CB Radio

1 Answer

External jack


sounds like you got a good radio to practice on . If it was given to you then you have nothing to loose except what ever you put into it. try hooking the speaker jack back up, see what it does??

Apr 12, 2009 | Galaxy Radios DX-959 40-Channels Base CB...

1 Answer

CB radio PA speaker


Freddy, hello. The first thought that comes to mind with your problem is that if the 29 is an older model, the audio circuit or audio chip could be tired. If your talking about the receive volume being low thru the ext. speaker, then there is a rx. wire inside the mic cord. When it breaks, it cuts the volume in about half. The rx. wire is on pin # 4. Maybe your using the wrong ohm value speaker. You need 4 or 8 ohm. If you are refering to the outgoing modulation being real low, then the radio mod. has just been turned down to 50-60%. That's about all I've got for now, not being able to actuallly see the radio,,, Have a good day, and let me know how it goes,, Mechanic

Oct 22, 2008 | Radio Communications

1 Answer

PA speaker quiet


I think this is a double post,, am I right Freddy??? Mechanic

Oct 22, 2008 | Cobra 25 LTD 40-Channels Base CB Radio

2 Answers

148GTL Cobra (no tx)


Bad transmitter. You can:
1) take it to a repair shop
2) get a new radio
3) repair the transmitter with a stock replacement transmitter
4) check the inside of the radio, make sure everything is where it's supposed to be
5) make sure that you are using the correct power supply for the unit

If the problem is too extensive and you consider getting a new radio similar to the 148GTL, try the Galaxy DX 2527. It's a BIG radio. But it's production was discontinued. If you can't find a Galaxy DX 2527, try a Galaxy DX 2517, it's similar to the DX 2527, but with less features, but has great sound, I get nothing but good comments when I talk on it. The DX 2527 has an okay transmitter, it doesn't sound all too good by itself, so that's why you have the echo and robot voice changer options.

Hope this helps!

Oct 12, 2008 | Cobra 148 GTL 120-Channels Base CB Radio

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