A
Anonymous
Guest
Does anyone put an RF trap between the coil and the clamp diodes? In looking at the amplifier output I see both RF and audio that has already been demodulated. I am assuming that the RF is partially demodulated by the clamp diodes. Some of the audio is going to be within a few Hz of the sampling frequency and therefore it cannot be filtered out by any method. It would be nice to get rid of it while it is still RF and before it becomes audio.
Robert
Robert