1. Scope of Application
This standard specifies the monitoring items, technical indicators, and monitoring methods for terrestrial digital television broadcasting systems that comply with GB 20600-2006. This standard is applicable to the monitoring of the broadcasting quality and coverage effect of terrestrial digital television broadcasting. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T14433-1993 Technical Regulations for Color Television Broadcasting Coverage Network GB/T 16463-1996 Subjective Evaluation Methods and Technical Requirements for Sound Quality of Broadcasting Programs GB/T 17975.1-2010 Information Technology, General Coding of Moving Images and Associated Sound Information Part 1: System GB/T 17975.2-2000 Information Technology, General Coding of Moving Images and Associated Sound Signals Part 2: Video GB/T 17975.3-2002 Information Technology, General Coding of Moving Images and Associated Sound Signals Encoding Part 3: Audio GB/T 20090.2-2006 Information Technology Advanced Audio and Video Coding Part 2: Video GB 20600-2006 Digital Television Terrestrial Broadcasting Transmission System Frame Structure, Channel Coding and Modulation GB/T 22726-2008 Technical Specification for Multichannel Digital Audio Encoding and Decoding GB/T 28161-2011 Digital Television Broadcasting Service Information Specification GY/T134-1998 Subjective Evaluation Method for Digital Television Image Quality 3 Terminology, Definitions and Abbreviations 3.1 Terms and Definitions The following terms and definitions apply to this document. 3.1.1 Monitoring for digital terrestrial television broadcasting subjectively evaluates and objectively measures the broadcasting quality and effectiveness of the entire terrestrial digital television broadcasting system. 3.1.2 Stop Radio: Due to various factors, the program was not broadcasted within the specified time on the broadcast schedule. 3.1.3 During the specified broadcast time, the abnormal phenomenon of no modulation signal but normal carrier wave occurs due to technical equipment malfunction or improper human operation, also known as carrier wave without modulation. 3.1.4 Poor broadcasting accident: Due to technical equipment malfunction or improper human operation, the reception quality has decreased, but it has not reached the suspension limit
Function of testing report:
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1. Telephone communication and confirmation of requirements
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1. The testing industry is fully covered, meeting different testing needs
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4. Free initial testing, with no testing fees charged
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