I'll try connecting a 47 ohm resistor from the other side of the capacitor that is connected to the cathode of the pin diode and see how that works. ?Yesterday, I listened to the west coast swap net all afternoon and heard everyone fine without needing to adjust the volume control. ?One station came on that is very strong, about S9 +40, and his audio was slightly distorted, but was intelligible and not louder than others. ?Everyone else sounded fine.
I've been focused on the audio compression that occurs when the stronger signals modulate the attenuation level, not the match to the BPF, so thanks for bring that up.
Jim/ND6P
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