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近年来,一种利用微波传送有线电视节目的传输系统——MMDS多频道微波分配系统,正在我国城乡迅速发展,它不仅起干线、支线的作用,而且还可以直接把电视信号送到户,取得了与光纤传输、电缆传输的同等重要位置。1.MMDS多频道微波电视系统的特点MMDS多频道微波电视系统是20世纪80年代在美国、加拿大等国家兴起的一种解决偏远地区电视覆
In recent years, a transmission system using microwaves to transmit cable television programs, the MMDS multi-channel microwave distribution system, is rapidly developing in China’s urban and rural areas. It not only functions as a trunk line and a feeder line, but also directly transmits television signals to households to obtain And fiber optic transmission, cable transmission of the same important position. 1.MMDS multi-channel microwave television system features MMDS multi-channel microwave television system is the 20th century, 80’s in the United States, Canada and other countries emerging a solution to remote areas of television coverage