User manual

Basic Operation
49
FFT Spectrum Analysis
You can use the FFT function to measure harmonic
components and distortion in systems, to characterize noise
in DC power supplies, and to analyze vibration.
Press MATH channel key to turn on the MATH menu page
1/2, and then press Operate softkey to select FFT. The FFT
menu page 1/2 will be displayed.
Softkey Options Description
Operate
A+B Add A and B
A - B Subtract B from A
A X B Multiply A by B
FFT Access FFT menu
Source
CH1 Select CH1 for FFT
CH2 Select CH2 for FFT
Window
Rectangular Use Rectangular window
Hanning Use Hanning window
Hamming Use Hamming window
Blackman Use Blackman window
Flattop Use Flattop window
Scale
dBV RMS
Vertical scale in dBV
RMS
V RMS Vertical scale in V RMS
More 1/2
---- Select page 2/2