摘要
本文从分析HFC有线电视铜轴缆工作在双向传送过程中产生的损耗差异着手,探讨了线路均衡对汇聚噪声的影响,提出采用放大器加衰减片的方法,提高线路增益,满足线路均衡的原理及具体调测程序。
Discussion of influence of line equalization over noise collection starting from loss differences produced in the dual-way transmitting process by coaxial cable of HFC cable TV network is presented in the paper. At the same time, method of adding attenuator to the amplifier to improve the line-gaining and meet the principle of line equalization and debugging procedures is also given in the article.
