[Elecraft] K3S Transmit on LSB causes popup on USB

[hawley, charles j jr]

Several of us K3S users have noticed a brief intermittent popup on USB when on 80M LSB. It seems to have something to do with transmit ALC settings, but can't get rid of it.
It also happens most with higher in frequency voice syllables.
One operator switched from his KS3 to a 7300 and the USB was clean.
Any ideas?

Chuck Hawley
 c-hawley at illinois.edu

 Amateur Radio, KE9UW