Sometimes, a spectrum analyzer works as an Oscilloscope to provide both functions. This Analyzer displays the frequency on the horizontal axis and the amplitude on the vertical axis. However, a combination of other signals like optical light waves and acoustic light waves are also testable using additional tools.īy testing the spectra of the electrical signals, it observes the bandwidth, distortion, dominant frequency, power, harmonics, and other components of signals in time domain waveform. Commonly, it measures electrical input signals. Generally, it can test the spectrum of both unknown and known signals. A spectrum analyzer is useful to measure the values of a signal against frequency within ranges of frequencies.
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