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I got a 148 gtl that i lost the channel selector... it dont lightup an i cant even make it key up.. it powers up an that is it.. help me please

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Send me an email with more details and I need to ask questions as it is almost impossible to figuer it out from a distance and no hands on. Here is my email.... poikaa@yahoo.com

Posted on Feb 13, 2010

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Posted on Jan 02, 2017

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Want to lower my dead key on my cobra 148 gtl mobile...where do i find the adjuster?


need to get a watt meter hooked up to then go the where the final is and look aroung for a tuning slug marked L38 and that is the baby you have to turn in order to power down this radio.

Nov 09, 2013 | Cobra 148 GTL 120-Channels Base CB Radio

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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

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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

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

My cobra 148 GTL will not key in the mobile


If you have been using this radio on the bench using a 12 Volt power supply and it was functioning properly then not operating in the mobile you need to look at fuses or a bad D.C. Plug.

Oct 18, 2010 | Cobra 148 GTL 120-Channels Base CB Radio

1 Answer

148 GTL 120-Channels Base CB Radio: my 148 throws a key to my bench radio but sends no...


Hi
try replacing the transistor just before the last on the rf pa output.

Hope this helps

Ray

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

1 Answer

Cobra 148 channles


CONTACT ME AT COBRAMAN148@GMAIL.COM I CAN HELP YOU OUT.

Mar 30, 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

148 GTL PROBLEM


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

Apr 24, 2008 | Cobra 148 GTL 120-Channels Base CB Radio

1 Answer

Cobra 148 gtl stays keyed up on tx on both am and ssb


Your problem is a faulty changeover relay on the circuit board. It is a small black device , and may have the brand name MRATA
etched on it (the switchover contact points are stuck together)
WORTH A TRY GOOD LUCK
flyingfox@prople.net.au

Mar 30, 2008 | Cobra 148 GTL 120-Channels Base CB Radio

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