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5 光纤传输技术在现代广播电视网络中的应用 众所周知,光纤广播电视网络基本上是建立在HFC基础上。目前其主要传输的CATV信号为: 正向——45～550MHz,45～750MHz,45～860MHz
5 optical fiber transmission technology in modern radio and television networks As we all know, fiber optic broadcast television network is basically built on the basis of HFC. At present its main transmission of CATV signals: forward - 45 ~ 550MHz, 45 ~ 750MHz, 45 ~ 860MHz