本文介绍了接收机灵敏度测试装置的工作原理,并简要地对该装置的误差进行了分析。考虑到简单、直观以及通用性和多用性,本装置采用了宽带的有源的形式,能够测量从直流到1千兆赫的指示器、接收机的灵敏度,并用来校准接收机与晶体管超高频毫伏表的频响等。测试灵敏度为1000微伏—0.03微伏,测量精度较高。 This article describes the receiver sensitivity test device works, and briefly analyzed the error of the device. Taking into account the simple, intuitive and versatility and versatility, the device uses a broadband active form, can measure from dc to 1 gigahertz indicator, receiver sensitivity and used to calibrate the receiver and the transistor ultra-high frequency Millivolt meter frequency response and so on. Test sensitivity of 1000 microvolts -0.03 microvolt, high accuracy.