Question about Cobra 148 GTL 120-Channels Base CB Radio

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Want to disconnect the bleep out of my cobra 148 gtl dx

Were do i look are what do i cut to disconnect the bleep from the inside

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  • AnyMHz.com
    AnyMHz.com May 11, 2010

    what kind of radio is it? the 148 gtl doesn't have roger beep.

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Open the cover speaker side and look inside the radio look for a small square board that the previous owner might have had installed that would be the roger beep. the white wire is the audio wire. and usualy is soldered to the audio pin if you remove this wire the beep will be disconnected. but you will most likely want to remove the whole system but it will still work if you dont which would be best. just cut the white wire.

Posted on Mar 08, 2009

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2 Answers

Cobra 148 gtl d has problem transmiting with covers off. trying to tune radio up. was thinking I need to ground the chasis


I would say a bad or cold solder joint on board somewhere. Bad quality control. Might flex radio chassis slightly while keying? A tooth pick and hours of probing around switching area on board and the pa section till problem found.

Oct 25, 2012 | Cobra 148 GTL 120-Channels Base CB Radio

2 Answers

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

2 Answers

I want to power my cobra 148 GTL in my home, want kind of inverter would I need to do this?, (watts)


you would probably want at least a 4watt continuous power supply or better. do not use as switching power supply.

Oct 23, 2010 | Cobra 148 GTL 120-Channels Base CB Radio

1 Answer

Output power


There are 3 versions of this model. Here is how to turn up the power on all 3.

Early production model: Turn VR5 all the way to the left and turn VR11 all the way to the left.

Late production model: Remove VR14, turn VR13 all the way to the left.

if its brand new, its the easiest. Just turn VR6 all the way to the left.

Apr 21, 2009 | 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

My cobra 148 gtl-dx has excessive levels of white noise that effect even relatively close stations incoming signal. is there any way i can vary or reduce the ferocity of this white noise


goto you tube and type in cobra 148 gtl dx and look for video by the cobraman in the uk - or type in the cobraman - u can contact him and he is a bit of a genius on this radio - he will even make a video and show u how to fix prblem

Jul 06, 2008 | Cobra 148 GTL 120-Channels Base CB Radio

1 Answer

Cobra 200 gtl dx


Could the battery be dead? Other than that, it may be a bad solder joint inside the mic.

Geno

Jan 24, 2008 | Cobra 200 GTL DX 4-Channels Base CB Radio

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