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“MMDS”即多频道微波分配系统,由于其具有传输距离远、投资少等优点,成为扩大农村广播电视有效覆盖的重要方式。近年来,数字技术的应用理论上为MMDS系统的发展提供了新的机遇,也为解决农村山区电视的有效覆盖,提高农民电视节目收看水平提供了很好的途径。从实践上看,也具有十分重要的研究推广价值。一、农村广播电视收视现状以昔阳县为例,该县地处太行山西麓,全县境内山峦起伏、地形复杂。全县总面积为1948平
“MMDS ” is a multi-channel microwave distribution system, because of its long distance transmission, less investment and other advantages, as an effective way to expand coverage of rural radio and television an important way. In recent years, the application of digital technology theoretically provides a new opportunity for the development of MMDS system, and also provides a good way to solve the problem of effective coverage of rural mountainous TV and improve the level of TV programs watched by peasants. In practice, it also has a very important value of research and promotion. First, the status quo of rural radio and television viewing Xiyang County, for example, the county is located in the western foot of Taihang Mountains, the county ups and downs of the territory, the terrain complex. The county a total area of 1948 flat