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HFC网络反向噪声远程实时监测系统 戴卫平 李永宁 梁军 江门广播电视台网络中心 ------------------------------------------------------- 摘要：反向噪声的测试是上行通道维护中的一项重要内容，传统的维护方法要么是业务运行受到影响后才去测试，或者定期安排值班人员去现场测试，但测试的时间连续性都无法得到保证，特别是反向噪声经常具有突发性，给我们的维护工作带来了极大的困难。为了加强对双向HFC网络上行通道的维护和规范化管理，我们想方设法改进传统的维护方法在反向噪声监测方面存在的不足，在投资比较小的情况下，设计了一套系统实现对所有光点的反向噪声进行实时监测。 关键词：反向噪声 远程 实时 9581SST 远程射频控制混合器 The Long-distance Real Time Guardian System For Reverse Noise Of HFC Network Abstract：Testing reverse noise is an important content of reverse path maintenance, the traditional way to maintain it is to test after the service interrupted , or arrange the personnel to carry on the spot test periodically , But time consecutions of the test can't get the assurance , especially reverse noise shows paroxysmal usually , so it is very difficult to maintain it. In order to strengthen maintenance and canonical management for reverse path of bidirectional HFC network , we cast about to ameliorate shortage of the traditional way to guard the reverse noise , and design a guardian system for reverse noise Under the condition of invest smallerly.） Key Word：Reverse Noise Long-distance Real Time 9581SST Long-distance RF Control Combiner
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