辐射骚扰测量中外置预放器的使用注意事项

Cautions for the Use of External Pre-player in Radiation Harassment Measurement

通过正确使用CISPR 16-1-1:2014附录J中的外置预放器,寻找使用外置预放器的辐射骚扰测量数据产生差异的原因,以避免或减少外置预放器对测量结果的不确定度影响,提升电磁兼容测试中的辐射骚扰测量数据的正确性,并基于30 MHz～1 GHz频率段的辐射骚扰测量阐述了使用外置预放器的正确方法和注意事项。

By using the external preamplifier correctly in Annex J of CISPR 16-1-1:2014, the reason for the difference of measurement data of radiation disturbance using the external preset was found to avoid or reduce the influence of the external preamplifier on the uncertainty of measurement results. Enhance the accuracy of radiation disturbance measurement data in EMC test. Based on 30 MHz~ 1 GHz frequency band radiation disturbance measurement, to expound the correct method and matters needing attention of using external preamplifier.