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现象和分析电视信号从中心台向发射台传输时,一般使用光纤或微波设备。视频信号与伴音信号采用频分复用等技术,混合调制后进行传输,由终端接收设备解调为视频信号和伴音信号,分别送入发射机。传输链路示意图(本台播出中心与101台之间电视信号传输链路)如图1所示:
Phenomena and analysis When transmitting television signals from a central station to a transmitting station, optical or microwave devices are generally used. Video signals and audio signals using frequency division multiplexing and other technologies, mixed modulation transmission, by the terminal receiving device demodulation for video signals and audio signals, respectively, into the transmitter. Schematic diagram of the transmission link (TV broadcast link between this station and 101 Taiwan) as shown in Figure 1: