You can use APRS messaging to set up a sked with somebody. So if I wanted to call W0ABC I would send a message to him using the server: W0ABC Hi Bill, I am stby on 10142000 15:00 - 16:00 UTC When W0ABC is qrv, he will get the message on his screen. Otherwise the message goes to the findu.com message box (retrieve with ~GETMSG). or to send a CQ send a message to yourself on the server channel: W1AAA CQ CQ de W1AAA lsn 10142000 73, Rein PA0R