这一信息旨在告知航空航天行业频谱分析仪的电磁干扰测量能力。所考虑的频谱分析仪为宽色散型，可在倍频程或更宽的频率范围内进行电子调谐。将空气限制在这种类型的频谱分析仪上的原因是，有几家制造商将其作为通用仪器生产，将其用于EMI测量将大大节省时间和成本。空气的目的是给出频谱分析仪的描述，考虑分析器参数，并描述分析器如何用于收集EMI数据。 在进行EMI测量之前，频谱分析仪的操作员应完全熟悉分析仪和空气中审查的技术概念。

This AIR was prepared to inform the aerospace industry about the electromagnetic interference measurement capability of spectrum analyzers. The spectrum analyzers considered are of the wide dispersion type which are electronically tuned over an octave or wider frequency range. The reason for limiting the AIR to this type of spectrum analyzer is that several manufacturers produce them as general-purpose instruments, and their use for EMI measurement will give significant time and cost savings. The objective of the AIR is to give a description of the spectrum analyzers, consider the analyzer parameters, and describe how the analyzers are usable for collection of EMI data. The operator of a spectrum analyzer should be thoroughly familiar with the analyzer and the technical concepts reviewed in the AIR before performing EMI measurements.