- CLOVER-2000 is a faster version of CLOVER (about four times faster) that uses eight tone
pulses, each of which is 250 Hz wide, spaced at 250-Hz centers, contained within a 2 kHz bandwidth between 500 and 2,500 Hz
- Domino is the name given by the developers to a family of IFK coded coherent phase single tone
MFSK keyed modes, using sequential tone
-pairs in two alternate fields arranged as orthogonal but interleaved tone
Mt-63 technical description
- The MT-63 modem, constructed around a high speed DSP processor, either in a dedicated external DSP unit like the Motorola EVM, or in PC software using the PC sound card, transmits 64 tone
s spaced 15.625 Hz apart, in the 1 kHz bandwidth.
- MFSK is an easy-to-use chat mode for real-time amateur contacts, nets and bulletin transmissions, but not intended for contesting or Bulletin Board
System (BBS) use. It is a half-duplex non-Automatic Repeat ReQuest (ARQ) forward-error-correcting (FEC) mode. It performs well on long-path fading conditions and in the presence of interference
- PSK31 is a digital communications mode which is intended for live keyboard
conversations, similar to radioteletype. Its data rate is 31.25 bauds (about 50 word-per-minute), and its narrow bandwidth (approximately 60 Hz at -26 dB) reduces its susceptibility to noise.