Good Morning, Set the "AGC" to SLOW. Seems to have taken care of the loud "pop"(in cw) that I was getting now and then. Thanks to all for your help. Don...w2xb -- View this message in context: http://www.nabble.com/k3--poping-noise-gone.-tp16001761p16001761.html Sent from the Elecraft mailing list archive at Nabble.com.