GJB151B中CE106项目发射状态测试的思考

Thinking on the Transmit Mode Test of CE106 Item in GJB151B

本文针对发射机、放大器等在贯彻GJB151B-2013开展CE106项目发射状态测试时面临需要重点考虑的设备安全性、测量结果准确性等问题,根据由受试设备发射功率、谐波乱真抑制限值确定的测试底噪要求与实际测试系统底噪之间的不同关系,提出相应的测试配置方案并分析其中衰减器、抑制网络、低噪声放大器等关键器件的指标参数选取要求与原则,可帮助快速确定试验方案或判断试验方案的可行性,具有较好的工程应用价值。

The problems of equipment safety and measurement result accuracy in CE106 item transmit mode test of transmitters and amplifiers in accordance with the GJB151B-2013 need serious consideration.In this paper,based on the different relationship between the test noise fl oor requirements determined by the transmitting power and the limits of harmonics and spurious emissions and the actual test system noise fl oor,the detailed test setup scheme is proposed,and the requirements and principles of the specifications selection of key devices such as attenuator,rejection network and low-noise amplifier are analyzed.It can help determine the test scheme quickly or judge the feasibility of the test scheme,and has good engineering application value.