The spectrum analyzer in a word, is receiving function. Of course, the signal in the receiver in how the way the output by our further analysis.
The panel of spectrum analyzer is used to build a number of function control keys. As a function of the system, the main function of the system is to display the frequency spectrum characteristics of the input signal in the frequency domain.
According to the different spectrum analyzer signal processing method, there are two general types: Real-Time Spectrum Analyzer and the Sweep-Tuned Spectrum Analyzer tuning.