Problems with Cobra 148GTL CB radio
Ok--I solved the problem with the radio!
Yes, it had been modified. Someone grounded pin 10 of the PPL chip and
fiddled with the VCO for above-band operation. I removed the jumper on
pin 10 and then used a frequency counter to realign the VCO. Also, the
output power was a bit high, so I adjusted the modulation circuit to
make it operate at the legal limits for AM and SSB.
Thanks for the advice. It was helpful.
-Dave
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