Rigol DS1000C User Manual page 43

I. Using the FFT
The FFT (Fast Fourier Transform) process mathematically converts a time-domain
signal into its frequency components. FFT waveforms are useful in the following
applications:
Measuring harmonic content and distortion in systems
Characterizing noise in DC power supplies
Analyzing vibration
Figure 2-17 Table2-6
Menu
Operate
Source
Window
Display
Scale
© Copyright RIGOL Technologies, Inc. 2007.
Settings Comments
A+B Add source A to source B
A- B Subtract source B from source A
AxB Multiply source B by source A
FFT Fast Fourier Transform
CH1 Define CH1 or CH2 as FFT
CH2 source
Rectangle
Hanning
Select window for FFT
Hamming
Blackman
Split Display FFT waveform on half
screen
Full screen
Display FFT waveform on full
screen
Vrms Set "Vrms " as vertical unit
dBVrms Set "dBVrms " as vertical unit
User's Guide for DS1000 Series
RIGOL
2-13