论文部分内容阅读
无线列调电台是铁路组织安全生产的重要通信联络手段,尤其是实行车机联控后,已成为防止和避免意外事故和突发事件不可缺少的设备。去年5月5日12时45分,南京铁路分局栖霞山站发现无线电所用频率受到外界严重干扰,已无法工作。分局迅速派技术人员用场强仪在栖霞山站仔细监测确认,干扰151MHz列调信号均在32dBμV,并发现在国家无委会1976年核发给铁路的列调频段(150-151.8MHz)内干扰信号均在10-20dBμV。但由于分局只配置了简易的FYD-1场强仪测试设备,无法确定干扰方向,难以查找干扰源。南京铁路分局领
Wireless alignment radio station is an important means of communication and communication for the safety of railway organization. In particular, it has become an indispensable device for preventing and avoiding accidents and emergencies after the control of vehicle control units. At 12:45 on May 5 last year, Nanjing Qixiashan Railway Station Branch found that the frequency used by the radio was seriously disturbed by the outside world and no longer works. Branch quickly sent field technicians in the Qixiashan station carefully monitored to confirm that the interference 151MHz serial signals are in the 32dBμV, and found in the National Commission in 1976 issued to the railway frequency band (150-151.8MHz) within the interference signal All in 10-20dBμV. However, because the branch office only equipped with simple FYD-1 field strength test equipment, can not determine the direction of interference, it is difficult to find the source of interference. Nanjing Railway Branch collar