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Aggregate Extended Text tables [ATSC Syntax]

Aggregate Extended Text tables are used to transmit Extended Text messages which provide detailed descriptions of events listed in Aggregate Event Information tables.

packetization characteristics
packet idunique pidt_s_ca_f_cp_u_s_ipointer_fieldlisted in MGT
per MGTsame as AEIT-k'00''01'True0-182By k-number
maximums
sections per
AETT-k instance
bytes per
section
AETT_pid
bps
2564096250,000
section syntax
syntaxbit index# of bitsmnemonic
table_id08215 / 0xD7
section_syntax_indicator81'1'
private_indicator91'1'
reserved102'11'
section_length1212uimsbf
AETT_subtype248uimsbf
MGT_tag328uimsbf
reserved402bslbf
version_number425uimsbf
current_next_indicator471'1'
section_number488uimsbf
last_section_number568uimsbf
if AETT_subtype==0
  num_blocks_in_section648uimsbf
  for i = 1 to num_blocks_in_section
    ETM_id7232uimsbf
    reserved1044'1111'
    extended_text_length1088bslbf
    extended_text_message184varbslbf
  next
else
  reserved72n*8bslbf
end if
CRC_32 32rpchof
Table section legend
Note: bit index is only indicated for the first time through the loop.

Ref: ATSC A/81, Table 9.8

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