午夜欧美大片免费观看,欧美激情综合五月色丁香,亚洲日本在线视频观看,午夜精品福利在线

The main signal flow of the frequency source for CINRAD/CC radar produced in the 7th batch is described. Through analyzing the main signal flow of the frequency source and using the waveform of the spectrum analyzer on key points, the fault phenomenon and the solution of the frequency source are discussed. The process is expounded, taking a typical fault phenonmenon for example. Requirements for the CC radar frequency source at the center frequency of key points and spectral amplitude are summed up. Some useful hints are given for radar users and the maintenance staff.