We could choose the different spectrum analyzer through various demand, then get more precious date we need.

There are many functional control buttons on the panel of the spectrum analyzer, which can adjust and control the system function. The main function of the system is to show the spectral characteristic of the input signal in the frequency domain.

​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.