Digital multimeter is a kind of digital measurement instrument which has many applications. The digital multimeter has the function like ammeter, voltmeter, ohmmeter and others.

​Compared with the traditional spectrum analyzer working principle, the most obvious change of modern sweep-frequency spectrum analyzer is AD sampling.

The spectrum analyzer has developed more and more functions under the modern technology, it usually adopt the software radio design.

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.