摘要
分析了有线电视同轴电缆中双向数据采用高频段和低频段的传输特性,并针对农村有线电视网络放大器级数多的特点,深度分析计算了:双向数据使用频率与可跨接放大器级数之间的关系,进一步提出并论证了"农村有线电视同轴电缆网络双向化宜采用低频段"的观点。
This article analyses the bi-directional transmission characteristics of low frequency and high frequency in coaxial network and then calculates the relation between amplifier series and bi-directional frequency according to the characteristics of more amplifier series in rural CATV.It puts forward a view that low frequency should be adopted in the bi-directional process of rural coaxial network.
出处
《中国有线电视》
2011年第2期124-127,共4页
China Digital Cable TV
关键词
农村有线电视
双向
低频段
rural CATV
bi-direction
low frequency
