# Configure Ports

This tab of the Configure dialog manages all the Ports, or external connections, that YAAC uses to exchange information with the rest of the world. The currently supported types of ports in core YAAC are:

- one or more serial-port-connected TNC (Terminal Node Controller) devices connected to Amateur Radio transceivers (VHF/UHF or HF);
- one or more KISS TNC devices accessed via TCP/IP connections;
- software and/or hardware TNCs connected through SV2AGW's AGW Packet Engine (AGWPE), or compatible programs emulating AGWPE such as 4X6IZ's soundmodem, ON7LDS's ldsped, UZ7HO's soundmodem, or WB2OSZ's DireWolf;
- a serial-port-connected GPS (Global Positioning System) receiver;
- using the Unix GPSD daemon to share a GPS receiver between YAAC and other applications;
- an Internet connection to the APRS-IS backbone;
- an SSL-authenticated Internet connection to the APRS-IS backbone.
- a receive-only connection to a Kenwood APRS-capable transceiver, such as the TM-D710 or TH-D72;
- a serial port connection to a Peet Bros weather station, such as the Ultimeter 500 or Ultimeter 2000;
- a file polling connection to weather station software that updates a WXNOW.TXT file;
- an inter-process TCP socket connection for receiving arbitrary APRS messages from other applications for relay to the APRS networks.
- a LAN connection to an Outernet satellite receiver for specifically-routed APRS packets.

Plugin extensions to YAAC may add other port types.

The tab displays a table of currently configured ports, and has buttons to add new ports, modify the settings of existing ports, or remove ports.

To add a new port, click the Add button, then set the appropriate options in the displayed port editor dialog and click OK.

To modify an existing port, select the appropriate row in the table of existing ports and click the Edit button. The port editor dialog will be displayed with the current settings of the port.

To stop using a port, select the appropriate row in the table of existing ports and click the Delete button.

The top item in the port editor dialog specifies the type of port. The remaining items change, depending on the selected port type.