A/81: Direct-To-Home Satellite Broadcast Standard

30 July 2003

This document describes the emission system for ATSC Direct-to-Home (DTH) Satellite Broadcast System. This specification defines extensions to audio, video, transport, and PSIP subsystems as defined in ATSC Standards A/53B and A/65A. The emission system defined in this document includes carriage of data broadcasting as defined in ATSC Standard A/90 without requiring extensions. Furthermore, transmission and conditional access subsystems are not defined, allowing service providers to use existing subsystems.

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