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目的 :掌握AWA VRB-52D设备的安装步骤及测试方法。方法 :以中小机场全向信标机的安装过程为例,将传输线理论应用到电缆的修剪和匹配当中,利用失量电压表测试数据,根据数据结合史密斯阻抗圆图能够快速完成多根电缆的修剪和匹配,满足设备的正常开机条件以及达到最后天线辐射信号符合飞行校验标准。结果 :理论数据和实际结论相符,开机正常,满足设备工作要求。结论 :中小机场的专业技术人员能够结合设备手册和失量电压表完成设备的快速安装调式,为今后的日常维护提供指导。
Objective: To master AWA VRB-52D equipment installation steps and test methods. Method: Taking the installation process of omnidirectional beacons at small and medium airports as an example, the theory of transmission line is applied to the pruning and matching of cables. Using the voltmeter test data, according to the data combined with Smith’s impedance chart, Trim and match to meet the device’s normal power-on conditions and to achieve the final antenna radiation signal in line with flight calibration standards. Results: The theoretical data are in accordance with the actual conclusion and are turned on normally to meet the requirements of equipment work. Conclusion: Small and medium-sized airport professional and technical personnel can combine the equipment manual and the lost voltmeter to complete the quick installation and adjustment of equipment, providing guidance for future routine maintenance.