List of ATSC standards

Below are the published ATSC standards for ATSC digital television service, issued by the Advanced Television Systems Committee.

A/49: Ghost Canceling Reference Signal for NTSC (for adjacent-channel interference or co-channel interference with analog NTSC stations nearby)
A/52B: audio data compression (Dolby AC-3 and E-AC-3)
A/53E: "ATSC Digital Television Standard" (the primary document governing the standard)
A/55: "Program Guide for Digital Television" (now deprecated in favor of A/65 PSIP)
A/56: "System Information for Digital Television" (now deprecated in favor of A/65 PSIP)
A/57A: "Content Identification and Labeling for ATSC Transport" (for assigning a unique digital number to each episode of each TV show, to assist DVRs)
A/63: "Standard for Coding 25/50 Hz Video" (for use with PAL and SECAM-originated programming)
A/64A "Transmission Measurement and Compliance for Digital Television"
A/65C: "Program and System Information Protocol for Terrestrial Broadcast and Cable" (PSIP includes virtual channels, electronic program guides, and content ratings)
A/68: "PSIP Standard for Taiwan" (defines use of Chinese characters via Unicode 3.0)
A/69: recommended practices for implementing PSIP at a TV station
A/70A: "Conditional Access System for Terrestrial Broadcast"
A/71: "ATSC Parameterized Services Standard"
A/72: "Video System Characteristics of AVC in the ATSC Digital Television System" (implementing H.264/MPEG-4 as well as MVC for 3D television)
A/76: "Programming Metadata Communication Protocol" (XML-based PMCP maintains PSIP metadata though a TV station's airchain)
A/79: "Conversion of ATSC Signals for Distribution to NTSC Viewers" (recommended practice, issued February 2009)
A/80: "Modulation and Coding Requirements for Digital TV (DTV) Applications Over Satellite" (ATSC-S)
A/81: "Direct-to-Home Satellite Broadcast Standard" (not yet implemented by any services)
A/82: "Automatic Transmitter Power Control (ATPC) Data Return Link (DRL) Standard"
A/85: "Techniques for Establishing and Maintaining Audio Loudness for Digital Television"
A/90: "Data Broadcast Standard" (for datacasting)
A/92: "Delivery of IP Multicast Sessions over Data Broadcast Standard" (for IP multicasting)
A/93: "Synchronized/Asynchronous Trigger Standard"
A/94: "ATSC Data Application Reference Model"
A/95: "Transport Stream File System Standard" (TSFS is a special file system for downloading computer files)
A/96: "ATSC Interaction Channel Protocols" (interactive TV)
A/97: "Software Data Download Service" (used by UpdateTV for upgrades and software patches in ATSC tuners)
A/98: "System Renewability Message Transport"
A/99: "Carriage Of Legacy TV Data Services" (for former analog supplemental services that used the vertical blanking interval lines, such as closed captioning and teletext)
A/100: "DTV Application Software Environment - Level 1" (DASE-1)
A/101: "Advanced Common Application Platform" (ACAP)
A/103:2014: "Non-Real-Time Delivery"
A/104: "ATSC 3D-TV Terrestrial Broadcasting"
A/105:2015: "Interactive Services Standard"
A/106:2015: "ATSC Security and Service Protection Standard"
A/107:2015: "ATSC 2.0 Standard"
A/110A: "Synchronization Standard for Distributed Transmission" (single-frequency networks)
A/112: E-VSB (Enhanced Vestigal Sideband)
A/153: ATSC-M/H

In 2004, the main ATSC standard was amended to support Enhanced ATSC (A/112); this transmission mode is backwardly compatible with the original 8-Bit Vestigal Sideband modulation scheme, but provides much better error correction.

ATSC-M/H for mobile TV has been approved and added to some stations, though it is known that it uses MPEG-4 instead of MPEG-2 for encoding, and behaves as an MPEG-4-encoded subchannel, inheriting 8VSB from the remainder of the channel.