GB/T 28434-2012Technical requirements and measurement methods of digital terrestrial television broadcasting single frequency network adapter (English PDF)
地面数字电视广播单频网适配器技术要求和测量方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
June 29, 2012
Implementation date
October 1, 2012
Scope
GB/T 28434-2012 is the English-translated version of 地面数字电视广播单频网适配器技术要求和测量方法.
GB/T 28434-2012 is the Chinese standard "Technical requirements and measurement methods of digital terrestrial television broadcasting single frequency network adapter".
Its scope clause reads: This standard specifies the technical requirements and methods of measurement in line with GB 20600-2006 terrestrial digital television broadcast single frequency network adapter.
For any equivalent measure to ensure that the same method of measurement uncertainty can also be used. This standard should be subject to dispute. This standard applies to VHF, UHF terrestrial digital television broadcast single frequency network adapter design, production, inspection, use, operation and maintenance. Its clauses include terms, definitions and abbreviations.
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Document preview — GB/T 28434-2012
National Standard of the People's Republic of China
- ICS
- 33.160
- Classification
- M 74
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms, Definitions and Abbreviations
- 4 3 System Overview
- 5 Technical requirements
- 6 Methods of measurement
- Appendix A (informative) terrestrial digital TV broadcasting SFN adapter Electromagnetic compatibility tests Description
- References
1 Scope
This standard specifies the technical requirements and methods of measurement in line with GB 20600-2006 terrestrial digital television broadcast single frequency network adapter.
For any equivalent measure to ensure that the same method of measurement uncertainty can also be used. This standard should be subject to dispute.
This standard applies to VHF, UHF terrestrial digital television broadcast single frequency network adapter design, production, inspection, use, operation and maintenance.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated edition applies to this article
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 6113.101-2008 radio disturbance and immunity measuring apparatus and methods - Part 1-1. Radio show
Disturbance and immunity measuring apparatus - Measuring apparatus
Limits and methods of measurement of radio disturbance GB 9254-2008 Information Technology Equipment
GB 17625.1-2003 Electromagnetic Compatibility Limits for harmonic current emissions (equipment input current <=16A)
Electromagnetic compatibility limits for equipment GB 17625.2-2007 rated current per phase <=16A and unconditional access in public low
Limit voltage generated in the power supply system, voltage fluctuations and flicker
GB/T 17626.2-2006 electromagnetic compatibility test and measurement techniques - Electrostatic discharge immunity test
GB/T 17626.3-2006 electromagnetic compatibility test and measurement technology RFEMS test
GB/T 17626.4-2008 Electromagnetic compatibility Testing and measurement techniques - Electrical fast transient burst immunity test
GB/T 17626.5-2008 electromagnetic compatibility test and measurement technology surge (impact) immunity test
GB/T 17626.6-2008 electromagnetic compatibility test and measurement technology RF field induction of immunity to conducted disturbances
GB/T 17626.11-2008 electromagnetic compatibility test and measurement techniques - Voltage dips, short interruptions and voltage variations immunity test
GB/T 17975.1-2010 information technology - Generic coding of moving pictures and associated audio information - Part 1. System
GB 20600-2006 digital terrestrial television broadcasting transmission system frame structure, channel coding and modulation
3 Terms, definitions and abbreviations
3.1 Terms and Definitions
The following terms and definitions apply to this document.
3.1.1 SFN singlefrequencynetwork
Located by a number of different locations in sync transmitter consisting of digital terrestrial television coverage network, where each transmitter
In the same frequency at the same time transmit the same modulated RF signal, in order to achieve reliable coverage for a particular service area.
3.1.2 Second frame
And the whole second data frame synchronization strict body, one second frame duration 1s time including modulation 8 GB 20600-2006 specified in 4.5 […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 21 pages — is available in the English PDF.
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