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CATV trunk amplifier, upward signal amplifier, and bi-directional CATV system
CATV trunk amplifier, upward signal amplifier, and bi-directional CATV system
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机译:CATV干线放大器,向上信号放大器和双向CATV系统
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摘要
In a CATV trunk amplifier, downward signal inputted to an input terminal from the center equipment side is inputted to a downward amplifying circuit via a first filter and a second filter, and the amplified downward signal is outputted to the terminal device side via the second filter, the first filter and an output terminal. Upward L signal is inputted from the terminal device side via the output terminal to an upward L amplifying circuit via the first filter and a third filter, and the amplified upward L signal is outputted to the center equipment side via the third filter, the first filter and the input terminal. Upward H signal is inputted to an upward H amplifying circuit via a fourth filter, and the amplified upward H signal is outputted to the center equipment side via the fourth filter and the input terminal.
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