The following protocols are available:
This protocol establishes a serial port connection between the client (terminal) and a Terminal Network Controller (TNC) in terminal mode (more).
Terminal mode allows clients to communicate with the TNC using “English-like” command strings. Most TNCs is running in TNC mode when powered up the first time.
This protocol establishes a serial port connection between the client and a TNC in KISS mode (keep-it-simple-stupid).
In KISS mode, the TNC turns into a simple modem device, which only concerns itself with transmitting and receiving raw AX.25 packets. The client (terminal) is responsible for implementing the AX.25 protocol.
This transport protocol establishes a socket connection between the client and a APRS-IS server .
APRS-IS is an Internet-based network which interconnects various APRS radio networks throughout the world (and space).