Yup, will take a few milliseconds before the audio detector creates the DC control voltage.
If the pop is objectionable, maybe somehow limit voltage peaks at the top of the volume pot.
If using back to back schottky diodes there, I think we'd need to?
increase the gain in the preamp, and then attenuate before feeding the TDA2822.
So not totally trivial to do.
If we can get it working, the ideal is to detect 12mhz after the filter.
But must do so without getting swamped by the BFO.?
Jerry
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On Wed, Mar 28, 2018 at 11:37 am, Tim Gorman wrote:
Using audio to attenuate IF gain will always suffer from a delay. I
could actually see it in my 2008 receiver using a two-channel
oscilloscope There will always be a "blurp" of a strong signal that
gets passed along before the AGC can suppress it.
