Ted, WB2LOU, and I have tested ALE-400 /FAE on the air under deep fade conditions and are pleased to be able to report that there was no auto searching for the frequency under such conditions.
with the "Fixed" function activated. Our tone set at 1500 Hz remained unchanged. Thank you very much for your work on this. We look forward to the "Fixed" button appearing in the ALE-400 /FAE mode of the next official update of MultiPSK.