DVOR边带与副载波告警故障处理技术分析

Analysis on Fault Processing Technology of DVOR Sideband and Subcarrier

为处理池州九华山机场DVOR边带与副载波告警故障问题,首先根据设备原理及故障现象,排除系统公共部分故障情况;其次利用适量电压表对信号进行测量,排除副载波缺口故障;最后,对SMA组件至边带天线通路进行测试,发现SMA至SCU段一电缆头接触不好,将电缆头更换并安装后,设备恢复正常。通过对本案例故障的分析处理,为DVOR故障排除提供了一种详细的思路和步骤。

In order to solve the problem of the DVOR sideband and sub carrier in Chizhou Jiuhuashan Airport, Firstly, toeliminate the public part fault conditions of the system in accordance with equipment principle and trouble phenomenon; Secondly,to measure the signal using vector voltmeter and to eliminate the fault of the Subcarrier notch; Finally, to test the pathway betweenSMA assemblies and sideband antenna and found a cable head of SMA to SCU section contact is not good, the system return tonormal after the replacement and installation of a new cable head. Through the analysis and processing of this case, a detailed ideasand steps are provided for DVOR trouble shooting.