Just did the upgrade. Outstanding..... P3 is a joy. Don...w2xb -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Beta-Firmware-Rev-3-57-Synchronous-AM-Detection-AM-S-misc-improvements-tp3983997p5920508.html Sent from the [K3] mailing list archive at Nabble.com.