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Channel Extended Text table [ATSC Syntax] |
If the description field for an ATSC virtual channel has an entry, and if ETM_location for that virtual channel not equal to 0, then a Channel Extended Text table will be created to transmit the description field.
maximums
| ms per section | sections per
source_id | bytes per section | max bps
per ETTs |
| per user | 1 | 4096 | 250,000 |
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