Andy Wallace wrote: "I'd be interested to hear if it was any different at the min and max speeds of the K2 keyer." ========== The CW (click) bandwidth of the K2's transmitter was no different at any speed. The clicks can be heard on either dits or dahs. There were no clicks on the end of the dit or dah -- only on the beginning (which suggests that the risetime is the problem). 73, de Earl, K6SE