Isn´t it also so that in the K3 the CW signal is also routed through a filter to limit the bandwith ? 73 Jim ----------------------- Den 2020-06-09 kl. 02:08, skrev Jim Brown: > On 6/8/2020 1:12 PM, Jim Brown wrote: >> They achieve rise time of about 2.5 msec, > > Correction from N6KR (designer) -- about 4 msec >