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
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