We need several of K4KYV "CQ " machines set to run in the shack.
I actually had a setup like that in use here at one time. I recorded a couple of different CQs onto a CD player and had it set up that I could play that through my transmitter, monitor it on one receiver and when it hit a pause in the loop, pause the player, unkey the transmitter and listen, and if I didn't hear anything, start it back up again.