Pervasion Ratio of Digital TV in China
2 min readIt is obvious that the digital TV pervasion ratio in China is much lower than that of the globally average level，even a bigger gap between UK and USA respectively.Reasons for this are various，including policy，fund and the lack of content，etc.
China’s cable TV（CATV）industry has a history of 30 years up to 2006 and through years of development，CATV is now the largest cable TV network throughout the world and becomes one of the most important components in China’s radio TV industry.Currently，China’s digital TV is mainly cable digital TV relying upon the CATV network.
Digital mobile TV realizes the broadcasting and receiving of digital programs through radio digital signal emission and ground digital receiver，taking buses，taxis，subways，light rails，business cars and personal cars，etc as its carriers.In a sense，mobile TV has become the best information channel of some citizens.
China started to transmit CCTV programs nationwide with communication satellites in 1985.For the past 21 years，China has made a great progress in satellite broadcasting&TV technology.The adoption of satellite digital compression technology elevates the signal quality of TV programs from CCTV or provincial broadcast TV stations and expands the population coverage of broadcast and TV.
Thanks for the satellite television 1226 million Chinese are covered in 2005，with a coverage ratio of 95.81%，much higher than 68.3%in 1985.Yet due to a certain policy factor，live broadcast of digital TV in China is still being restricted to some extent.Anyway，nothing can hinder its development trend in the long term.
Though compared with developed countries，China is lagged far behind in the field of digital TV，yet it made rapid progress in 2005；altogether 4.13 million Chinese subscribed digital TV，increasing by over twofold compared to the previous year.Among them，3.97 million were digital cable digital TV subscribers.
