On 11/7/2013 8:37 PM, Don Wilhelm wrote: > Spectrogram is no longer a supported program With permission of the author, the last public version is on my website. Scroll down to find it. http://k9yc.com/publish.htm You're on your own -- although I used it ten years ago to tweak my K2s, I know nothing about it. :) 73, Jim K9YC