Cobra 2000 GTL Sideband Issue.

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speedracer6g
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Cobra 2000 GTL Sideband Issue.

Post by speedracer6g »

Radio Make and Model: Cobra 2000 GTL
PCB Number: pc-497aa
PLL Number: 8719
Test gear available: Motorolla Service monitor R-2200b, Freq Conter, Digital and Analog VOM, Ect...
Symptoms: I am having trouble alligning the sideband on this radio. I can get the tx to line up perfectly but as soon as i go to set up rx the fun starts. If i can even get the rx to line up it throws the tx off again. Something is wrong in the sideband section maybe there is someting sorted that is causing the two frequencies to mix? any help would be appreciated.

thanks,

Mike
RBR762
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Re: Cobra 2000 GTL Sideband Issue.

Post by RBR762 »

I am having a similar problem with my 148gtl-can you tell me how you are lining up the transmit and recieve,in other words wich cans for the receive and wich ones for the transmit etc...
Robert
NightRanger3151
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Re: Cobra 2000 GTL Sideband Issue.

Post by NightRanger3151 »

Maybe this will help ....

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13EL121
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Re: Cobra 2000 GTL Sideband Issue.

Post by 13EL121 »

NightRanger3151 wrote:Maybe this will help ....
Hmmm...this looks nearly same like President Madison :!: :?:
carlospo
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Re: Cobra 2000 GTL Sideband Issue.

Post by carlospo »

You got a solution? What? I have the same problem, will be the PLL?, bought a new switch but when the radio did not have audio.
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