Hi Igor and Steve,
Perhaps it's worth mentioning that our advice for all WSJT-related
programs has always been to disable the receiver AGC (if possible) and
turn the RF gain control well down, thereby minimizing AGC action. If
you do this and follow instructions in the User Guide about setting the
signal level coming into the sound card (or equivalent device), there's
plenty of dynamic-range "headroom" still available for nearly all
situations.
The decoders know how to handle widely different signal levels, and they
appreciate having a reliably constant baseline noise level during an Rx
sequence.
-- Joe, K1JT
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