Spectrum analyzer is an instrument for studying the spectrum structure of electrical signals. It is used to measure signal distortion, modulation system, spectrum purity, frequency stability and intermodulation distortion.
It can also be used to measure some parameters of circuit systems such as amplifiers and filters. It is a versatile electronic measuring instrument.
The panel of the spectrum analyzer is equipped with many function control buttons. As the adjustment and control of the system function, the main function of the system is to display the frequency characteristic of the input signal in the frequency domain.