List of amateur radio modes

The following is a list of the modes of communication used by amateur radio operators.

Analog

• Amplitude Modulation (AM)
• Double Sideband Suppressed Carrier (DSB-SC)
• Independent Sideband (ISB)
• Single Sideband (SSB)
• Amplitude Modulation Equivalent (AME)

• Frequency Modulation (FM)
• Phase Modulation (PM)

• Continuous Wave (CW)

Image Modes

• Amateur Television, also known as Fast Scan television (ATV)
• Slow Scan Television (SSTV)
• Facsimile

Digital

Most amateur digital modes are transmitted by inserting audio into the microphone input of a radio and using an analog scheme, such as amplitude modulation (AM), frequency modulation (FM), or single-sideband modulation (SSB).

• ALE Automatic Link Establishment
• AMateur Teleprinting Over Radio (AMTOR)
• D-Star
• Echolink
• Hellschreiber, also referred to as either Feld-Hell, or Hell
• Discrete multi-tone modulation modes such as Multi Tone 63 (MT63)
• Multiple Frequency-Shift Keying (MFSK) modes such as
  • FSK441, JT6M, JT65, and
  • Olivia MFSK
• Packet Radio (AX25)

• Automatic Position Reporting System (APRS)

• PACTOR
• Phase Shift Keying (31 baud) (PSK31)
• Spread spectrum
• Simplex Teletype Over Radio (SITOR)
• Radio Teletype (RTTY)
• 8FSK 8ary Frequency Shift Keying

Modes by Activity

The following 'modes' use no one specific modulation scheme but rather are classified by the activity of the communication.

• Earth-Moon-Earth (EME)
• Internet Radio Linking Project (IRLP)
• Low Transmitter Power (QRP)
• Satellite (OSCAR)

Sources

http://www.ac6v.com/opmodes.htm