Agilent Technologies 3000 Series User's And Service Manual page 75

Capturing Data 3
Because minimum and maximum values for a sample period are stored,
you can use the Peak Detect acquisition mode to avoid waveform aliasing.
To select the Peak Detect acquisition mode:
1 Press Acquire.
2 In the Acquire menu, press Acquisition until "Peak Detect" is selected.
Agilent 3000 Series Oscilloscopes User's Guide 75