Thursday, December 29, 2022

Flying PigRig (6). Receiver checks

 Yesterday, I finished adding the last parts to the PigRig:  the lowpass filter inductors and a couple of more inductors.  I tested the receiver.  The AGC circuit was killing the mixer so I just disconnected it.  I kluged in the volume control and connected some headphones and a random wire antenna.   The receiver is fixed tuned at 7.030.7 kHz, but I heard some background noise and some faint CW signals. 

As it stands now,  I've wired around the keyer, which wasn't working right, and I've also disabled the AGC circuit. 

Next up is installing and checking the finals.  Then putting it into a cabinet.




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