VEVOR SDS1102 Benutzerhandbuch Seite 35

4. In the right menu, select Window. Select the proper window type
in the left menu.
5. In the right menu, select Format as Vrms or dB.
6. In the right menu, press Hori (Hz) to make the
of the frequency value, turn the M knob to adjust the horizontal
position of FFT waveform; then press to make the
front of the frequency/div below, turn the M knob to adjust the
time base of FFT waveform.
7. Select Vertical in the right menu; do the same operations as
above to set the vertical position and voltage division.
To select the FFT window
■ There are 6 FFT windows. Each one has trade-offs between
frequency resolution and magnitude accuracy. What you want to
measure and your source signal characteristics help you to
determine which window to use. Use the following guidelines to
select the best window.
Type
Hamming
Characteristics
Better solution for magnitude than
Rectangle, and good for frequency as
well. It has slightly better frequency
resolution than Hanning.
Recommend to use for:
Sine, periodic and narrow band

random noise.
Transients or bursts where the

signal levels before and after the
event are significantly different.
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symbol in front
symbol in
Window