Wait to decode callsigns, then call them using UDP protocol
Global Software Defined Radio at Your Fingertips
Amateur Radio AX.25 chat and PBBS program using Linux's AX.25 stack
Arduino Mega 2560 + Ethernet Shield to Drive 8 Relays for MFJ-993b
µSDX & CWdaemon GUI
RF relays serial switch
Finds best HF band for site-to-site communications using Fldigi
Ham Radio QRP(P) Beacon on Cortex-M3 MCU from STMicroelectronics.
Remote industrial terminal indicator to the control of Modbus-RTU on A
Antenna Measurement Range Using LinuxCNC
Some stuff to make AX.25 actually work across your networks.