Pete, Go to my website www.w3fpr.com and look at the "Noisy K3" article. It will help you adjust your AGC settings to help combat the mush. 73, Don W3FPR On 7/2/2020 5:34 PM, Peter Chamalian wrote: > My K3S is turning CW into mush. Huge pile ups as K2D are really hard to > deal with. Any suggestions other than get a K4 which I have on order?