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HamRadio /
HF Digital ModesHamRadio.HFDigital HistoryHide minor edits - Show changes to markup March 13, 2012, at 04:59 PM EST
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Revised: David March 13, 2012, at 03:24 PM EST March 13, 2012, at 04:11 PM EST
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DominoEX is a family of offset incremental multi-frequency shift keyed modes with low symbol rate. A single carrier of constant amplitude is stepped between 18 tone frequencies in a constant phase manner.
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DominoEX is a family of offset incremental multi-frequency shift keyed modes with low symbol rate. A single carrier of constant amplitude is stepped between 18 tone frequencies in a constant phase manner.
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ALE (Automatic link establishment) is a protocol developed by the USA military and used mainly as an automatic signalling system between radios. It is used extensively for military and government communications worldwide and by radio amateurs. to:
ALE (Automatic link establishment) is a protocol developed by the USA military and used mainly as an automatic signalling system between radios. It is used extensively for military and government communications worldwide and by radio amateurs.
March 13, 2012, at 04:10 PM EST
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The Hellschreiber or Feldhellschreiber is a facsimile-based teleprinter invented by Rudolf Hell. Compared to contemporary teleprinters that were based on typewriter systems, the Hellschreiber was much simpler and more robust, with only two moving parts.
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Multiple frequency-shift keying (MFSK) is a variation of frequency-shift keying (FSK) that uses more than two frequencies. [1] MFSK is a form of M-ary orthogonal modulation, where each symbol consists of one element from an alphabet of orthogonal waveforms. M, the size of the alphabet, is usually a power of two so that each symbol represents log2M bits.
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Olivia MFSK is an amateur radioteletype protocol designed to work in difficult (low signal-to-noise ratio plus multipath propagation) conditions on shortwave bands.
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DominoEX is a family of offset incremental multi-frequency shift keyed modes with low symbol rate. A single carrier of constant amplitude is stepped between 18 tone frequencies in a constant phase manner.
March 13, 2012, at 04:01 PM EST
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Notes: MFSK or "polytone" modes ALEALE (Automatic link establishment) is a protocol developed by the USA military and used mainly as an automatic signalling system between radios. It is used extensively for military and government communications worldwide and by radio amateurs. March 13, 2012, at 03:43 PM EST
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PACTOR is a radio modulation mode used by amateur radio operators, marine radio stations, and radio stations in isolated areas to send and receive digital information via radio.
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Winlink, also known as the Winlink 2000 Network, is a worldwide radio messaging system that mixes internet technology and appropriate amateur radio radio frequency (RF) technologies.
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Notes: clover March 13, 2012, at 03:33 PM EST
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"Phase Shift Keying, 31 Baud" is a digital radio modulation mode, used primarily in the amateur radio field to conduct real-time keyboard-to-keyboard informal text chat between amateur radio operators.
March 13, 2012, at 03:32 PM EST
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Notes: clover March 13, 2012, at 03:29 PM EST
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Radioteletype is a telecommunications system consisting originally of two or more electromechanical teleprinters in different locations, later superseded by personal computers (PCs) running software to emulate teleprinters, connected by radio rather than a wired link.
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Notes: Wikipedia: clover March 13, 2012, at 03:24 PM EST
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HF Digital Modesto:
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PSK31PACTORWinLink 2000CloverHellschreiberMFSKGTORMT-63ThrobOliviaDominoEXto:
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Revised: Profiles March 13, 2012, at 03:24 PM EST March 12, 2012, at 09:21 AM EST
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Revised: March 12, 2012, at 09:15 AM EST March 12, 2012, at 09:20 AM EST
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=HF Digital Modes= ==RTTY== ==PSK31== ==PACTOR== ==WinLink 2000== ==Clover== ==Hellschreiber== ==MFSK== ==GTOR== ==MT-63== ==Throb== ==Olivia== ==DominoEX== ==Digital Voice and Image== to:
HF Digital ModesRTTYPSK31PACTORWinLink 2000CloverHellschreiberMFSKGTORMT-63ThrobOliviaDominoEXDigital Voice and ImageMarch 12, 2012, at 09:18 AM EST
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==PSK31== ==PACTOR== ==WinLink 2000== ==Clover== ==Hellschreiber== ==MFSK== ==GTOR== ==MT-63== ==Throb== ==Olivia== ==DominoEX== ==Digital Voice and Image== March 12, 2012, at 09:15 AM EST
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