I experience the same initial drift downward, but like others have said, it stabilizes nicely after five or six minutes. Great qrp rig! Best 73/72 Mike Narges WF8O -- View this message in context: http://elecraft.365791.n2.nabble.com/k1-tp7522932p7535613.html Sent from the Elecraft mailing list archive at Nabble.com.