区域范围小功率单频网覆盖方案设计

地面数字电视是公共服务,明确由国家财政投入,已建广播电视＂村村通＂工程起点低、入户率较低、节目套数少、没有经费保障,无法维持＂长期通＂。普通地市只规划了一个地面数字电视频道,最多也就是十几套节目,与当前建设社会主义新农村的要求、与广大农民群众的迫切需求不适应,而有线网络覆盖成本又太高,客观上迫切需要节目丰富的地面数字电视市场化产业来解决广大边远地区的农村电视收看问题,为此仅从技术角度探讨区域范围内广大农村的国标无线数字电视单频网小功率覆盖设计问题。

Design of Regional Low Power and Single Frequency Network Coverage

Surficial digital TV is a public service and its cost is clearly trom me state financial input, the finished projects of radio and TV coverage to every village has low start point; low user usage, few program channels, no funds protection and unable to maintain the long - term stability. The ordinary cities have planned only one surficial digital TV channel and provided dozen of programs at most, which is inconsistent with the requirements of building a new socialist countryside and the urgent needs of the peasant masses. The cost of the wired network coverage is too expensive, it is urgent for us to meet the need of people in the vast remote rural areas to watch TV through surfieial digital TV. This article discussed from the technical point of view how to design low -power and single frequency network based on rural wireless national surficial digital TV standard within a certain region.