GW Instek GDS-1000 Series User Manual - Manual (Page 54)

GDS-1000 Series User Manual
54
7. Press Normal.
8. Press Peak-Detect and see
that a spike noise is
captured.
Peak
Detect
Example The peak detect mode reveals the occasional glitch.
Normal mode Peak detect mode
Real time vs Equivalent time sampling mode
Backgrounds The oscilloscope automatically switches between
two sampling modes, Real-time and Equivalent-
time, according to the number of active channels
and sampling rate.
Real-time
sampling One sampled data is used to reconstruct a single
waveform. Short-time events might get lost if the
sampling rate gets too high. This mode is used
when the sampling rate is relatively low
(250MSa/s or lower).
Equivalent-time
sampling Multiple numbers of sampled data are
accumulated to reconstruct a single waveform.
Restores greater waveform details but takes longer
to update the waveform. This mode is used when
the sampling rate becomes higher than 250MSa/s.
The maximum equivalent-time sampling rate is
25GSa/s.