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C-MAC is the variant approved by the European Broadcasting Union (EBU) for satellite transmissions. The digital information is modulated using 2-4PSK ( phase-shift keying), a variation of quadrature PSK where only two of the phaser angles (±90°) are used.

  • The data capacity for C-MAC is 3Mbit/s.
  • C-MAC data has to be sent to the transmitter separately from the vision.
  • The transmitter switches between FM (vision) and PSK (sound/data) modulation during each television line period.
C-MAC (disambiguation)

C-MAC usually refers to C- Multiplexed Analogue Components, variant of a satellite television transmission standard

C-MAC may also refer to: