久久久噜噜噜久久中文字免,国产黄色免费网,国产精品女主播在线观看,综合毛片免费视频,一区二区三区日本视频,大奶在线精品,一级欧洲+日本+国产,最新热久久免费视频,国产精品欧美一区二区三区,国产香蕉精品

?The scan model of the modern spectrum analyzer usually have both sweep model and FFT model. Under the circumstance of the narrow RBW, the FFT is faster than the sweep model, while if the RBW is wider, the sweep model is faster.

?The tracking generator is the common implements of the spectrum analyzer. When the output of the tracking generator is connected with the input of the spectrum analyzer, the spectrum analyzer and tracking generator can form a completely sweep frequency measuring system.

?The sensitivity of the spectrum analyzer is related with the RBW. The smaller of the RBW, the better sensitivity of the spectrum analyzer. While it will slower the scan speed.

?At first, we need to reset the central frequency, span and reference level according to the tested signal. Then under the circumstance of without overload reduce the pad value gradually. If the SNR is less than 15dB, we need to reduce the RBW.

?The programmable DC power supplies device has the dangers like high voltage, large current, please do not operate unless the relevant personnel.

We all know that the spectrum analyzer can be applied in many areas and plays a important part. We need to know more about it such as how to use it properly.