A Candidate Standard is a document that has received significant review within a specialist group. Advancement of a document to Candidate Standard is an explicit call to those outside of the related specialist group for implementation and technical feedback. This is the phase at which the specialist group is responsible for formally acquiring that experience or at least defining the expectations of implementation.

Non-Real Time

This document describes the ATSC Non-Real-Time Content Delivery system. The NRT system provides support for delivery of content in advance of use (i.e., not streaming content). These ATSC-NRT services are carried in DTV broadcast multiplexes. The presence of these services do not preclude or prevent operation of current ATSC services in the same RF channel or have any adverse impact on legacy receiving equipment.

This document, updated on 1 December 2011, is currently at ballot for advancement to Proposed Standard. Per the direction from the ATSC Technology and Standards Group, this document will remain available during the ballot period.

1 December 2011 Download PDF file