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)
- THROB (1, 2 and 4 throbs/sec)
- PSK31 (BPSK and QPSK)
This software is available on most linux, BSD operating system.