The evolution and development of Chinese broadcasting technology

Aim To study the evolution and development of Chinese Radio Broadcast Station and broadcast technology.Methods Analysis of documentation.Results Radio broadcast was invented in 1906.In 1920,Westinghouse Electric Corporation tried to show the program which was made by themselves for testing.After that,the broadcast was introduced to China.Radio program production and transmission technology were updated from manual control to automatic control,from analog information to digital form,and finally to complete automation and network of system.Conclusion The technology of Chinese Radio Broadcast has been changed from weak to strong awing to the improvement of science technology.And because of the earthshaking changes in the technology of program production,transmission,etc.,the digitalization,network,intellectualization and informationization of program showing and satellite broadcasting service have great promotion effect to the human civilization and social progress.