I was happy with the K3 monitor and transmit audio after upgrading from 2.48 (I think) to 2.67. I was happy with TX power stability after the TX calibration on all bands; the defaults were far off on most bands.. Ignacy -- View this message in context: http://n2.nabble.com/K3-Monitor-tp1641973p1643837.html Sent from the Elecraft mailing list archive at Nabble.com.