Question about Cobra 148 GTL 120-Channels Base CB Radio

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Cobra 148 gtl channel mods

Looking for mods for cobra it has 1991 philpines board pyascan chip in it

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Contact me i can mod your radio for 65.00

Posted on Dec 06, 2008

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Cobra 148 gtlcobra 148 gtl DX


http://www.cbtricks.com/radios/cobra/148gtl_dx/index.htm

Nice choice of radio i have the Grant LX Uniden which is roughly the older version.
This site may be of interest also if you choose the channel mod make sure you have the right PLL. http://www.radioaficion.com/HamNews/mods/mods-cb/2428-uniden-grant-xl-mods-pll-agc-power-clarifier.html

Nov 16, 2011 | Cobra 148 GTL 120-Channels Base CB Radio

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

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Sideband power is very low & when you turn up the dynamike from the min position it gets distorted. AM is ok. This is the china made model from 2 years ago. What is the problem & how do I fix it.?


There is a chip in the modulation circuit......it can be id'd by the # on the board as " IC3 "...It is called the balanced mod chip.

\Have fun...........

Sep 28, 2010 | Cobra 148 GTL 120-Channels Base CB Radio

1 Answer

Reset on the back of cobra gtl 2000 cb radio


the reset button is used to reset the cpu when doing mods.try replacing with momentary press switch.
good luck
ken

Apr 04, 2010 | Cobra 148 GTL 120-Channels Base CB Radio

1 Answer

Just bought a 142gtl and looked it up online. I


Don't get crazy into mods. Some are good some are bad.

Really all you want to do is a peak and tune on it. The cobra 148 has great audio already. The most I would do to it is turn up the modulation all the way, and the AM power, then put a swing mod in. That will get you max wattage. 2 watt dead key.

Talkback is only necessary if you are going to be putting an echo board in so you can hear how the echo sounds.

Jan 30, 2010 | Cobra 148 GTL 120-Channels Base CB Radio

2 Answers

Want to disconnect the bleep altogether on my cobra 148 gtldx


If this is a stock cobra 148 gtl 40 channel am plus side band, they don't to my knowledge come with a built in r beep. Some roger beeps are instaleed through the transmit circuit on the mic, so if not in the know Don't try to fix it.Some microphones have a beep built in. I used to install beeps on these radios using the pa/cb switch to turn them on. also try the nb switch or the swr/rf switch.

Feb 04, 2009 | Cobra 148 GTL 120-Channels Base CB Radio

1 Answer

Cobra 148 gtl b no recieve


make sure that the rf gain is turned up all the way.Check diodes D-12&D-13.

Jan 08, 2009 | Cobra 148 GTL 120-Channels Base CB Radio

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