15-4
IM PX8000-02EN
15.4 Displaying the Power Spectrum
This section explains the following settings for performing FFT and displaying the power spectrum.
• Computation
Function (PS(S1)), computation source waveform, unit, label, turning the waveform display on and
off
• Scaling
• Computation start point
• FFT
►
Features Guide: “Power Spectrum (PS (S1))”
MATH Menu
Press
MATH
to display the following menu.
Set the computation.
Displays the second page of the menu ► section 15.5
Set the computation start point. ► section 15.1
Set the start point of the FFT. The number of data points to use in the
FFT (FFT points) is set on another menu.
Set the number of FFT points. ► section 15.5
Set Mode to ON.
Set the scaling. ► section 15.1
Configuring Computations (Math Setup)
1.
Press the
Math Setup
soft key.
2.
Press a soft key from
Math1
to
Math8
to display the following screen.
Select function PS(S1).
Select the computation source waveform
(U1-U4, I1-I4, P1-P4, AUX3-AUX8, Math1-Math7).
Turns the waveform display on and off
Set the label.
Set the unit.
Configuring the FFT
Set the number of FFT points and window function. ► section 15.5