gMFSK is a multimode HF terminal program for Linux and other unix-like operating systems. Despite the name, gMFSK can send and receive many digital conversational modes typically used by radio amateurs on HF. Supported modes are:

  • MFSK (MFSK16 and MFSK8)
  • RTTY
  • THROB (1, 2 and 4 throbs/sec)
  • PSK31 (BPSK and QPSK)
  • PSK63
  • MT63
  • Feldhell

This software is available on most linux, BSD operating system.


An amateur radio operator, military veteran, jack of all trades and master of none.

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