Hello Don The K3 also reacts very slowly, an antenna is not connectet. I will bring back the K3 on 10W and see what happens 73 Markus -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-SN5035-HI-SIG-tp6528930p6529540.html Sent from the Elecraft mailing list archive at Nabble.com.