Chapter 8. Digital Television (DTV)

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Definitions

The ATSC (Advanced Television Systems Committee) digital television (DTV) broadcast standard is used in the United States, Canada, South Korea, Mexico, and Argentina.

The three other primary DTV standards are DVB (Digital Video Broadcast), ISDB (Integrated Services Digital Broadcasting), and OpenCable™. The basic audio and video capabilities are very similar. The major differences are the RF modulation schemes and the level of definition for non-audio/video services.

QAM (quadrature amplitude modulation) is a method of encoding digital data onto a carrier for RF transmission. It is typically used for cable transmission of DTV signals.