BK Precision 2190D - FFT Spectrum Analyzer

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Table 3.9 – Math Function Description
Operation
Setting
Description
＋
A+B
Source A waveform adds Source B
waveform.
－
A-B
Source B waveform is subtracted
from Source A waveform.
*
A*B
Source A multiplied by Source B
/
A/B
Source A divided by Source B
FFT
Fast Fourier Transform.
Figure 3.15 – Math Waveform
FFT Spectrum Analyzer
The FFT process mathematically converts a time-domain signal into its
frequency components. You can use the Math FFT mode to view the
following types of signals:
• Analyze the harmonic wave in the Power cable.