摘要
扼要介绍国家技术监督局发布的国家标准“彩色电视广播覆盖网技术规定”（ＧＢ／Ｔ１４４３３－９３）的主要内容，技术依据，应用举例以及使用要注意的问题，如用简化相乘法计算多个干扰情况下可用场强和不同地形条件下计算最低场强覆盖距离等。文中还指出此项国标与广电部原规划方法的不同点。
This article introduces National Standard GB/T 14433- 93' Tecnical specifications for coverage networks of colour TV broadcasting' issed by the NTSB. The article includesits main contents, tecnical bases, examples and limits forapplications, such as calculating usable field strength with multipleinterferences using simplified multiplication method and coverageboundaries of minimum field strength with different terrains. Thearticle points out also some differces between this national standardand technical standards used in the practical planning.
出处
《广播与电视技术》
北大核心
1996年第2期49-55,共7页
Radio & TV Broadcast Engineering
关键词
彩电
覆盖网
国家标准
coverage networks of colour TV broadcasting radiofrequency protection ratio minimum field strenth simplifiedmultiplication method usable strength
