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  ITU-T A.5 justification information for referenced document ETSI EN 302 755 V1.4.1 (2015-07) in draft J.157
1. Clear description of the referenced document:
Name: ETSI EN 302 755 V1.4.1 (2015-07)
Title: Frame structure channel coding and modulation for a second generation digital terrestrial television broadcasting system (DVB-T2)
2. Status of approval:
Approved
3. Justification for the specific reference:
it is a normative reference in J.157
4. Current information, if any, about IPR issues:
None. IPR info in ETSI are found at https://ipr.etsi.org/
5. Other useful information describing the "Quality" of the document:
EN 302 755 has been applied on most of the STB over the world and more than millions of receivers have been manufactured under this specification.
6. The degree of stability or maturity of the document:
EN 300 755 Version 1.4.1 was published in 2015-07. It is an approved document by ETSI.
7. Relationship with other existing or emerging documents:
None
8. Any explicit references within that referenced document should also be listed:
[1] ETSI TS 101 162: "Digital Video Broadcasting (DVB); Allocation of identifiers and codes for/
Digital Video Broadcasting (DVB) systems"./
[2] ETSI TS 102 992: "Digital Video Broadcasting (DVB); Structure and modulation of optional/
transmitter signatures (T2-TX-SIG) for use with the DVB-T2 second generation digital terrestrial/
television broadcasting system"
9. Qualification of ETSI:
ETSI is recognized under the provisions of ITU-T Recommendations A.5 and A.6. Qualifying information is on file at TSB.
10. Other (for any supplementary information):
None
Note: This form is based on Recommendation ITU-T A.5