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
  • A/52B: audio data compression
  • A/53E: "ATSC Digital Television Standard"
  • A/55: "Program Guide for Digital Television"
  • A/56: "System Information for Digital Television"
  • A/57A: "Content Identification and Labeling for ATSC Transport"
  • A/63: "Standard for Coding 25/50 Hz Video"
  • A/64A "Transmission Measurement and Compliance for Digital Television"
  • A/65C: "Program and System Information Protocol for Terrestrial Broadcast and Cable"
  • A/68: "PSIP Standard for Taiwan"
  • 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"
  • A/76: "Programming Metadata Communication Protocol"
  • A/79: "Conversion of ATSC Signals for Distribution to NTSC Viewers"
  • A/80: "Modulation and Coding Requirements for Digital TV Applications Over Satellite"
  • A/81: "Direct-to-Home Satellite Broadcast Standard"
  • A/82: "Automatic Transmitter Power Control Data Return Link Standard"
  • A/85: "Techniques for Establishing and Maintaining Audio Loudness for Digital Television"
  • A/90: "Data Broadcast Standard"
  • A/92: "Delivery of IP Multicast Sessions over Data Broadcast Standard"
  • A/93: "Synchronized/Asynchronous Trigger Standard"
  • A/94: "ATSC Data Application Reference Model"
  • A/95: "Transport Stream File System Standard"
  • A/96: "ATSC Interaction Channel Protocols"
  • A/97: "Software Data Download Service"
  • A/98: "System Renewability Message Transport"
  • A/99: "Carriage Of Legacy TV Data Services"
  • A/100: "DTV Application Software Environment - Level 1"
  • A/101: "Advanced Common Application Platform"
  • 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"
  • A/112: E-VSB
  • A/153: ATSC-M/H
In 2004, the main ATSC standard was amended to support Enhanced ATSC ; 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.

ATSC 3.0

is a non-backwards-compatible version of ATSC being developed that uses OFDM instead of 8VSB and a much newer video codec.
On March 28, 2016, the Bootstrap component of ATSC 3.0 was upgraded from candidate standard to finalized standard.
On May 4, 2016, the Audio Codec component of ATSC 3.0 was elevated to candidate standard, with two finalists remaining: Dolby AC-4 and MPEG-H Audio Alliance format from Fraunhofer IIS, Qualcomm and Technicolor SA. A third entry from DTS named DTS:X was withdrawn before the standard was upgraded to candidate status.
On September 8, 2016, the Physical Layer Download component of ATSC 3.0 was upgraded from candidate standard to finalized standard.
On October 5, 2016, the Link Layer Protocol Standard was elevated from Candidate to final standard, along with the Audio Watermark Emission Standard and Video Watermark Emission Standard. ATSC Technology Group 3 members have also begun voting on elevating the following Candidate Standards to Proposed Standard status : Service Announcement, Service Usage Reporting and Captions and Subtitles. TG3 members also are voting to elevate Security to Candidate Standard status, joining Schedule and Studio-to-Transmitter Link Standard, which was recently elevated. On March 30, 2016, A/324 was upgraded from Proposed to Candidate Standard.
On January 3, 2017, ATSC announced the updated status of its standards, in time for its debut at the Consumer Electronics Show in Las Vegas. As a result, this update, Captions and Subtitles was upgraded from Candidate to Finalized Standard; Security, Lab Performance Test Plan and Field Test Plan were upgraded to Candidate Standard from "Under Consideration".
By March 7, 2017, ATSC announced a further update to the status of its standards, with the following as Finalized: A/321 ; A/322 Physical Layer Protocol ; A/326 ; A/330 ; A/333 ; A/334 ; A/335 ; A/336 ; A/342 Part 1 ; A/342 Part 2 ; A/342 Part 3 ; and A/343. The following are Proposed Standards: A/325 ; A/332 ; A/338 ; A/341. The following are Candidate Standards: A/300 ; A/324 ; A/331 ; A/337 ; A/344 ; A/360. The following is a Draft Standard: A/323.
;Structure/ATSC 3.0 System Layers
  1. Bootstrap: System Discovery and Signalling
  2. Physical Layer: Transmission
  3. Link Layer Protocols: IP, MMT
  4. Presentation: Audio and Video standards, Ultra HD with High Definition and standard-definition multicast, Immersive Audio
  5. Applications: Screen is a web page
;Finalized Standards:
  • A/200: Regional Service Availability
  • A/300: ATSC 3.0
  • A/321: System Discovery and Signalling
  • A/322: Physical Layer Download
  • A/323: Dedicated Return Channel for ATSC 3.0
  • A/324: Schedule and Studio-to-Transmitter Link
  • A/325: Recommended Practice: TG3/S32 Lab Performance Test Plan
  • A/326: Field Test Plan
  • A/330: Link Layer Protocol
  • A/331: Signaling, Delivery, Synchronization, and Error Protection
  • A/332: Service Announcement
  • A/333: Service Usage Reporting
  • A/334: Audio Watermark Emission
  • A/335: Video Watermark Emission
  • A/336: Content Recovery in Redistribution Scenarios
  • A/337: Application Signaling
  • A/338: Companion Device
  • A/339:2017, “ATSC Recommended Practice: Audio Watermark Modification and Erasure”
  • A/341: Video Standard
  • A/341:2018, “Video – HEVC, With Amendments No. 1 and No. 2″
  • A/342: Audio Standard
  • A/341 Amendment – 2094-40
  • A/342 Part 1: Audio Common Elements
  • A/342 Part 2: AC-4 System
  • A/342 Part 3: MPEG-H AA System
  • A/343: Captions and Subtitles
  • A/344: Application Runtime Environment Standard
  • A/360: Security and Service Protection
;Proposed Standards:
;Candidate Standards:
  • A/331:2021: Signaling, Delivery, Synchronization, and Error Protection
  • A/345: Personalization
;Draft Standards:
;Under Consideration - Working Drafts and Recommended Practices:
  • A/327: Guidelines for the Physical Layer Protocol
  • A/350: Guide to the Link-Layer Protocol
  • A/351: Techniques for Signaling, Delivery and Synchronization
  • A/361: Security and Content Protection
  • A/362: Digital Rights Management
  • A/370: Conversion of ATSC 3.0 Services for Redistribution
  • A/380: Haptics for ATSC 3.0