CONFIGURATION 
75 
Real time vs Equivalent time sampling mode 
 
The oscilloscope automatically switches between 
two sampling modes, Real-time and Equivalent-
time, according to the number of active channels 
and sampling rate. 
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). 
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.