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Signal splitter/combiner for reducing noise ingress and cable television network incorporating plurality of same
Signal splitter/combiner for reducing noise ingress and cable television network incorporating plurality of same
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机译:用于减少噪声进入的信号分配器/组合器以及包括其的有线电视网络
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摘要
A signal splitter comprising an input and a plurality of outputs is provided, wherein alternate outputs are connected to phase shifting devices. The phase shifting devices preferably comprise phase shifting transformers and introduce a phase shift of 180°, so that noise components of alternate outputs are antiphase and cancel one another out almost entirely when the signals are summed. Also provided is a cable television network comprising a plurality of such signal splitters to ensure that noise ingress in upstream signals passing into the network is substantially reduced.
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