摘要
通过理论计算和实际测量说明集中供电的HFC双向网络链路载波交流声比（%）是可以叠加的,而载波交流声比指标符合标准的设备应用,在网络中却没有构建出指标合格的网络。
Through theoretical calculation and practical measurement, this article shows that the Hum of HFC hi-directional network which supply power intently can be piled up. The index of Hum which compiles with the standard of equipment application does not suit the eligible network.
作者
毛勇
MAO Yong （Chongqing Wanzhou Broadcast ＆ TV Network Transmission Co. ,Ltd, Chongqing 404000, China）
出处
《中国有线电视》
2007年第21期1962-1964,共3页
China Digital Cable TV
