GW Instek GDS-3000 Series User Manual - Manual (Page 85)

MEASUREMENT
85
FFT
Panel Operation 1. Press the Math key.
M
2. Press FFT from the bottom menu.
3. Select the Source from the side
menu.
Range CH1~4, Ref~4
4. Press the Vertical Units key from
the side menu to select the vertical
units used.
Range Linear RMS, dBV RMS
5. Press the Window key from the side
menu and select the window type.
Range Hanning, Hamming, Rectangular,
and Blackman.
6. The FFT result appears. For FFT, the horizontal
scale changes from time to frequency, and the
vertical scale from voltage/current to dB/RMS.