Template:Digital modes

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v t e Amateur radio digital modes

Frequency-shift keying (FSK)	RTTY AMTOR / SITOR PACTOR CLOVER2000 Packet radio (Bell 103 Bell 202)

Multiple frequency-shift keying (MFSK)	Olivia MFSK Contestia JT65 FSK441 JT6M WSPR

Phase-shift keying (PSK)	PSK31 PSK63 Q15X25

CODFM	MT63 (based on PSK)

Non-traditional digital modes	Hellschreiber (Feld-Hell) On-off keying Continuous wave Modulated continuous wave Pulse modulation Frequency-hopping Spread Spectrum (FHSS) Direct Sequence Spread Spectrum (DSSS)