AEIT_subtype [ATSC Semantics]
The AEIT_subtype is an 8-bit unsigned integer field in an ATSC Aggregate Event Information table AEIT that in theory, identifies the subtype of the Aggregate Event Information table (AEIT). Currently, only value 0x00 is defined, and all others are reserved.. Effectively, this arrangement enables later updating of the format for AEITs with the publication of new permissible value for AEIT_subtype.
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