Rigol DS4024E User Manual

Chapter 6 Operations and Measurements RIGOL
DS4000E User’s Guide 6-5
FFT
The FFT (Fast Fourier Transform) operation can transform time domain signals to
frequency domain signals (frequency spectrum). FFT operation can facilitate the
following works:
 Measure the harmonic components and distortion in the system
 Measure the characteristics of the noise in DC power
 Analyze the vibration
DS4000E provides the FFT operation function which enables users to view the time
domain signal and frequency spectrum at the same time, as shown in the figure
below.
Figure 6-1 FFT
You can perform the FFT operation following the steps below.
1. Select the FFT operation
Press MATH  Operate, turn the multi-function knob to select “FFT” and
press the knob. You can also press Operate continuously to switch to the “FFT”
operation.
Frequency Domain Waveform Time Domain Waveform
FFT Vertical Scale FFT Sample Rate
FFT Horizontal Scale Center Frequency

Rigol DS4024E Specifications

General

Brand	Rigol
Model	DS4024E
Category	Test Equipment
Language	English