Panic over. Ran "forcing a Firmware Download" as per page 25 of the KX3 manual. Then Reloaded the latest firmware. TX/RX up and Running again. -- View this message in context: http://elecraft.365791.n2.nabble.com/KX3-power-on-tp7579835p7579838.html Sent from the Elecraft mailing list archive at Nabble.com.