Keysight DSOX1202A - Math Transforms; FFT Magnitude, FFT Phase

70 Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes User's Guide
6 Math Waveforms
See Also • "Units for Math Waveforms" on page 67
Math Transforms
Math transforms perform a transform function (FFT) on an analog input channel or
on the result of an arithmetic operation.
• "FFT Magnitude, FFT Phase" on page 70
FFT Magnitude, FFT Phase
Using the Fast Fourier Transform (FFT), the FFT (Magnitude) math function
displays the magnitudes of the frequency content that makes up the source
waveform, and the FFT (Phase) math function shows the phase relationships of the
frequency content. The FFT takes the digitized time record of the specified source
and transforms it to the frequency domain.
The source of the FFT math functions can be analog input channels or an
arithmetic operation g(t).
Figure 11 Example of Multiply Channel 1 by Channel 2