ABSTRACT
In the early 21st century, the State Administration of Radio Film and Television (SARFT) of China has begun to carry out the research on satellite system for radio and television (TV) broadcasting of Ku and Ka frequency band (Wang, 2015; Shi, 2008; Lin, 2007). For building a safer and more reliable satellite live broadcasting operating system, further standardizing the market of live satellite radio in China, and improving the safety of the satellite live broadcasting system, in July 2009, the SARFT approved the technical specification of radio, film, and television industry for the satellite live broadcasting: Advanced Broadcasting System-Satellite transmission system’s frame structure, channel coding, and modulation: security mode (GD/JN 01-2009). On the basis of this specification, for building satellite live broadcasting system, in October 2009, the SARFT officially approved the technical specification for satellite live broadcasting security mode modulator: the technical requirements and measuring method for live broadcasting satellite safe mode modulator (GD/JN 02-2009).
