本文介绍了扩展噪声系数表hp 8970a测量频率范围的方法。
This article introduces the method of extending noise figure meter HP 8970a measurement frequency range.
由于考虑了辐射效应和高次模的影响，测量频率范围成功地扩展到了X波段。
By considering the influence of radiation effect and higher order modes, the measurement frequency range has successfully extended to X-band.
这些测试测量了对低、中、高频率噪声的听觉范围。
The tests measured range of hearing over low, mid and high noise frequencies.
应用推荐