RIGOL  Chapter 4 To Set the Sample System 
4-4  DS2000E User’s Guide 
Peak Detect 
 
In this mode, the oscilloscope acquires the maximum and minimum values of the 
signal within the sample interval to get the envelope of the signal or the narrow pulse 
of the signal that might be lost. In this mode, signal confusion can be prevented, but 
the noise displayed would be larger.  
 
 
High Resolution 
 
This mode uses a kind of ultra-sample technique to average the neighboring points 
of the sample waveform to reduce the random noise on the input signal and generate 
much smoother waveforms on the screen. This is generally used when the sample 
rate of the digital converter is higher than the storage rate of the acquisition memory. 
Note: "Average" and "High Res" modes use different averaging methods. The 
former uses "Multi-sample Average" and the latter uses "Single Sample Average".