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Noisy tx - Cobra 2000gtl

G

GarageNET

Guest
I've been in this cobra for a few days now, and need some opinions...



The tx seems to have rf getting into the audio. I have checked EVERYTHING, and narrowed it down to the frequency/clock display. If I unplug the the display from the counter, or just the power to the counter the noise goes away, and the tx audio is nice and clean. Of course I have checked the obvious -solder joints, jumper wires, etc, But I can't narrow it down any further than the digital display (but I am absolutely sure that's where it's coming from.)



The radio has been butchered by some other tech down the line, so I had to spend a lot of time redoing failed channel mods, a sloppy variable power, and a few nasty rat's nests of wires.



Ever seen this before? Any ideas?



~Vince


</p>
 

I've been in this cobra for a few days now, and need some opinions...



The tx seems to have rf getting into the audio. I have checked EVERYTHING, and narrowed it down to the frequency/clock display. If I unplug the the display from the counter, or just the power to the counter the noise goes away, and the tx audio is nice and clean. Of course I have checked the obvious -solder joints, jumper wires, etc, But I can't narrow it down any further than the digital display (but I am absolutely sure that's where it's coming from.)



The radio has been butchered by some other tech down the line, so I had to spend a lot of time redoing failed channel mods, a sloppy variable power, and a few nasty rat's nests of wires.



Ever seen this before? Any ideas?



~Vince


</p>
 

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