11-4
IM WT3001E-51EN
11.2  Various Settings Related to FFT
A portion of the settings related to FFT is common with the “waveform display in normal 
measurement mode” and “FFT mode.” The settings described in sections 11.3 to 11.9 are 
those specific to the FFT. Set these items first.
•  Setting the FFT mode  Section 11.3
•  Selecting the power spectrum to be displayed, selecting the   Section 11.4
  FFT source, and setting the label
•  Setting the number of computed points and time window  Section 11.5
•  Setting the display range of the X-axis (frequency) and the   Section 11.6
  scale type of the Y-axis (signal amplitude)
•  Setting the display type of the power spectrum  Section 11.7
•  Displaying the power spectrum on the split screen.  Section 11.8
•  Cursor measurement  Section 11.9
The settings below are common with the waveform display of normal measurement 
mode. See the respective sections below in the User’s Manual IM WT3001E-01EN.
•  Setting the trigger  Section 6.4
•  Selecting the display interpolation and graticule  Section 6.7
•  Turning ON/OFF the scale value and waveform label  Section 6.8
If you change settings that are common with the “waveform display in normal measurement 
mode” and “waveform computation mode” in FFT mode, the waveform display settings 
in normal measurement mode and waveform computation mode are also changed. For 
example, if the scale value display is turned OFF in FFT mode, the scale value display in 
“waveform display in normal measurement mode” and “waveform computation mode” are 
also turned OFF.
The anti-aliasing filter setting is the same as with the harmonic measurement in normal 
measurement mode. See the following section.
•  Setting the anti-aliasing filter  Section 7.8