浅谈多信道宽带数字接收设备原理及故障分析法

在总结多信道宽带数字接收设备原理特点的基础上,分析研究了设备信道故障的快速检修方法,综合运用按故障范围和按故障现象两种故障判断手段,对常见的所有频段接收异常、单个频段接收异常和多个频段接收异常三种信道故障,进行了故障现象的分析和故障原因的判断,可以为多信道宽带数字接收设备的使用维修人员提供参考借鉴。

On the basis of summarizing the principle and characteristics of multi-channel broadband digital receiving equipment, this paper analyses and studies the fast maintenance methods of equipment channel faults. The three common faults which are all frequency bands receiving fault / single frequency band receiving fault/ multiple frequency band receiving fault are analyzed and judged by means of fault range and fault phenomena. This paper can be used and maintained by the use and maintenance personnel of the multi-channel broadband digital receiving equipment.