CAJ | 학술논문

光缆网络改造增设光节点后,＂村村响＂广播难以采用原先射频插入的方式进行插播,改用光纤调频广播信号混合复用传输设备进行插播,调试过程中发生广播信号干扰有线电视信号的故障,就广播单频道调制度与有线电视多频道调制度之区别进行理论分析,剖析故障的具体原因。
광람망락개조증설광절점후,＂촌촌향＂엄파난이채용원선사빈삽입적방식진행삽파,개용광섬조빈엄파신호혼합복용전수설비진행삽파,조시과정중발생엄파신호간우유선전시신호적고장,취엄파단빈도조제도여유선전시다빈도조제도지구별진행이론분석,부석고장적구체원인。
Heyu Village, located in Yuanqiao Town, Huangyan District, after the additional transformation of optical node in optical network, finds the former RF intersection for inter cut in ＂Every Village Project＂ broadcasting unsuitable and switches to optical FM signal hybrid muhiplexing transmission equipment. This paper reports the cable TV troubleshooting of interference from broadcast signal in the debugging process and gives a detailed report of specific reasons for the breakdowns and inferences. Furthermore, this paper also gives a theoretical analysis of the differences between broadcasting single - channel modulation and cable TV multi - channel modulation.