YAAC can communicate with the APRS-IS network on the Internet. To create an APRS-IS connection, click the Add button on the Ports tab of the Configure dialog, then change the Port Type to APRS-IS. The dialog will then appear like this:
The options to be set for an APRS-IS connection are:
To obtain a passcode, contact YAAC's author by e-mail, and provide him with your government-issued amateur radio callsign. He will send back the passcode corresponding to your callsign.
Note that the Test Port button does not work for SOCKS-connected servers.
If both an APRS-IS port and an RF port are opened, YAAC expects to be used as an I-gate (Internet gateway) station. This tutorial explains more about I-gating.