Q I know that VOX is voice-operated switching, but what is “MOX”? I see this popping up in transceiver feature lists from time to time
A MOX is manually operated switching. It is a front panel button that places the rig in the transmit mode. MOX is handy when you need to transmit, for antenna tuning purposes, for example, but don’t have a mic or key connected to the transceiver.
From QST November 2000