SIGLENT TECHNOLOGIES SDS2000X-E Series, Руководство пользователя

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SIG L ENT
SDS2000X-E User Manual
115
Note: Please refer to the cursors chapter for more information.
Note:

Signals with DC components or deviation would cause error or deviation of the
FFT waveform components. To reduce the DC components, set the Channel
Coupling to AC.

To reduce the random noise and aliasing frequency components of repetitive or
single pulses, set the Acquisition of the oscilloscope to Average .
Figure 56 FFT Waveform in Split Mode
11. Press the AUTO SET softkey to automatically set the appropriate parameters for the
FFT measurement.
12. Press the Display softkey and select Normal , Maximum Hold and Average to
display the FFT waveform.
To measure FFT waveform:
To make cursor measurements, press the
Cursors button, and then press the Mode
softkey to select
On
to turn the cursors. Use the X1 and X2 cursors to measure frequency
values and the difference between two frequency values (ΔX). Use the Y1 and Y2 cursors
to measure amplitude in dB and difference in amplitude (ΔY).
You can find the frequency value at the first occurrence of the waveform maximum by
using the X at Max Y measurement.