Hello Valery
There is one small modification AVALA layout that you may wish to make .
Both audio path I and Q have 2k2 resistor to pins 1 and 6 of the final amplifier ...
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Hello Valery
There is one small modification AVALA layout that you may wish to make .
Both audio path I and Q have 2k2 resistor to pins 1 and 6 of the final amplifier ...
Valery ...... I think there may be a small error in AVALA layout.
Receiver input attenuator relay pin 3 should connect to pin 7, not to tx output line?
73 Robert G3WKU