PCS500 / PCS100 / K8031
11
SPECTRUM ANALYZER "FFT"
PCS500 screenshot
PURPOSE
Only one fundamental frequency of a signal can be properly measured using
an oscilloscope, the levels of other frequencies cannot be easily examined
and compared simultaneously. The spectrum analyzer is the solution to this
problem.
Because the incoming signal is digitized, it is possible for the signal to be
scientifically converted into its frequency spectrum (using FFT - Fast Fourier
Transforms).
With the spectrum analyzer program supplied, it is possible to view the signal
in terms of its frequency spectrum. Thus, the harmonics in a distorted,
imperfect sine wave (e.g., square wave) can be examined.
Furthermore the spectrum analyzer can also be used for measuring filter
circuits, etc.
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