16-1
IM PX8000-02EN
16.1 Displaying FFT Waveforms
This section explains the following settings for displaying power spectrum waveforms in the FFT
window.
• FFT waveform display
• FFT
Spectrum type and sub type, analysis source waveform, window function
• Vertical scale
• Computation start point
• FFT points
• Main window’s display ratio
• Window layout
• Horizontal axis
Scale, unit, zoom (display range)
► Features Guide: “FFT”
FFT Menu
1.
Press
SHIFT+MATH
(FFT) to display the following menu.
Displays the second page of the menu
Set the FFT.
Set the vertical scaling mode (Auto, Manual).
Set the vertical axis center and sensitivity.
• Center (−9.9999E+30 to 9.9999E+30)
• Sensitivity (1E−30 to 1.9999E+30)
Set this when the vertical scale is Manual.
Set the computation start point (−5div to -5div).
The setting resolution varies depending on the display record length.
Select whether to set FFT1 or FFT2.
Turns the FFT display on and off
Set the number of FFT points (1k, 2k, 5k, 10k, 20k, 50k, 100k).
Chapter 16 FFT