RIGOL DS6000 Series - Manual (Page 129)

6 To Make Measurements RIGOL
DS6000 User’s Guide 6-5
FFT
FFT is used to quickly perform Fourier transform on specified signals and transform
time domain signals to frequency domain signals. Use FFT to facilitate the following
works:
 Measure harmonic components and distortion in the system
 Measure the characteristics of the noise in the DC power
 Analyze vibration
Press MATH  Operate to select “FFT” and set the parameters of FFT operation.
1. Source Selection
Press Source to select the desired channel. The channels available are CH1,
CH2, CH3 and CH4.
2. Select Window Function
Spectrum leakage can be considerably decreased when a window function is
used. DS6000 provides four kinds of FFT window functions with different
Frequency Domain Waveform Time Domain Waveform
Vertical Amplitude Horizontal Scale FFT Sample Rate Center Frequency