Hi Hardy Zenker a écrit : > But CW by Win-Test does not work. Which Win Test configurations is > necessary??? I don't have such a hardware handy, but you must _not_ set the CW and PTT output in the DTR/RTS setting. Try : WinKey, 9600 8 N 1 and "Always to off" for RTS and CTS. 73 Larry - F6FVY