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A/70 Parts 1 and 2, Conditional Access System for Terrestrial BroadcastApproved: Various Dates

A/70 Part 1 defines the Conditional Access System for ATSC Terrestrial Broadcasting. The necessary building blocks are called out that will enable broadcasters to fully exploit the capabilities of digital broadcasting using ATSC. This standard is based, whenever possible, on existing open standards.

Download A/70 Part 1:2010, “Conditional Access System for Terrestrial Broadcast”, approved 30 November 2010.

A/70 Part 2 defines the method for utilizing Simulcrypt concepts to simultaneously encrypt (provide service protection) services with different service protection systems without transmitting multiple differently-encrypted copies of the services.

Download A/70 Part 2:2011, “Conditional Access System for Terrestrial Broadcast Service Protection using Simulcrypt for IP-Delivered Services”, approved 17 October 2011.

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About ATSC

ATSC, the Broadcast Standards Association, is an international, non-profit organization developing voluntary standards and recommended practices for digital terrestrial broadcasting. Serving as an essential force in the broadcasting industry, ATSC guides the seamless integration of broadcast and telecom standards to drive the industry forward. Currently, the ATSC 3.0 Standard is providing the best possible solution for expanding the potential of the broadcast spectrum beyond its traditional application to meet changing needs. From conventional television to innovative digital data services, ATSC has one clear goal: to empower the broadcasting ecosystem like never before.

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