HamComm (ver 3.1) Abandonware HamComm is a Shareware program that is no longer sold or supported. The version offered here is the fully functional Shareware version (which merely lacks PACTOR), and not the registered version. HamComm is a multi-mode Amateur Radio program that supports reception and transmission of radio teletype (RTTY), AMTOR ARQ/FEC, SITOR A/B, NAVTEX, and Morse code (CW) signals. A decoder for SHIP and SYNOP reports from weather stations is also included. This program requires the construction of a very simple hardware interface, which you connect between the PC Serial Port and both a radios microphone input and speaker output. Configuration is done through the text file HC31.CFG, which must reside in the same direcory as HC.EXE.