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从南京有线电视网络结构出发,利用每Hz固定功率法,对实际网络中回传通道驱动功率和回传损耗进行了理论分析,并以CableModem为例,推算了实际网络对综合业务开展的适应能力。计算表明,回传通道的系统指标完全符合综合业务的要求。
Starting from the structure of Nanjing CATV network, using the fixed power method per Hz, the theoretical analysis of the driving power and return loss of the return path in the actual network is made. Taking CableModem as an example, the adaptability of actual network to the development of integrated services . The calculation shows that the systematic index of the return channel fully meets the requirements of the integrated service.