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SDS5000X Series Digital Oscilloscope User Manual
162 / 236 W W W. S I G L E N T. C O M
Select Operation as FFT in the math dialog box and
set the parameters of FFT:
A. Set the window type (Rectangle, Blackman,
Hanning, Hamming and Flattop)
B. Select the display mode (Split, Full Screen
and Exclusive)
C. Select the FFT mode (Normal, Average and
Max-Hold)
D. Set the unit (dBVrms, Vrms and dBm). When
the unit is dBm, the oscilloscope will
automatically calculate the dBm value based
on the Ext Load value in area
E. Set the vertical scale and reference level
F. Set the center frequency and horizontal
scale
G. Set the external load, which is used to
calculate the correct dBm result
H. Automatically set vertical scale, reference
level, center frequency and horizontal scale
according to the maximum frequency
component in the previous frame
Note: The FFT dialog box is longer than the display. Slide the dialog box area
up and down by gestures, or scroll the mouse wheel to the undisplayed area.
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