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Nouns explanations:
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FFT resolution: it is the quotient of acquisition and
operation point. When operation point count is
fixed, the lower the acquisition rate is the better
the FFT resolution is
Nyquist frequency (NYQUIST) for waveform with
highest frequency f it is required to use acquisition
rate at least 2f to reconstruct original waveform It
is called the Nyquist Creterion, the f represents
Nyquist frequency and 2f the Nyquist acquisition
rate.
It is used to simplify operation. Press key , the
oscilloscope will adjust vertival bias coefficient and
horizontal time base gear based on the amplitude
and frequency of waveform automatically and will
display stable waveform on screen The system
automatic set are as following
Automatic Set
Table 6-21
UTD1000L User Manual
Function menu
Acquisition mode
Display format
s/div
v/div
Trigger mode
Trigger level
Trigger coupling
Trigger slope
Trigger type
Set
Normal acquisition
YT
Adjust according to signal frequency
Adjust according to signal amplitude
Edge
Signal midpoint
DC
Rise
Automatic
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