rocco labella IK8XLD
AUTO-MUTE does not work via QO-100.
Joe's idea would be very useful to activate AUTO-MUTE or AUDIO REDUCTION% using rs232 serial line, (or usb / serial adapter) using an external radio without CAT (not pluto, no TS2000 ....), transmitting via satellite QO-100.
You could connect the ptt of the external radio to DTR / CTS / RTS to obtain the same result.
I wrote about this many months ago on this forum, but I'm afraid I didn't know how to explain well because of my bad English. :)