Agilent Technologies DSO-X 4022A, User Manual

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Acquisition Control
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Agilent InfiniiVision 4000 X-Series Oscilloscopes User's Guide 225
See Also • Chapter 11 , “Trigger Mode/Coupling,” starting on page 205
• "Averaged Value" on page 112
High Resolution Acquisition Mode
In High Resolution mode, at slower time/div settings extra samples are
averaged in order to reduce random noise, produce a smoother trace on
the screen, and effectively increase vertical resolution.
High Resolution mode averages sequential sample points within the same
acquisition. An extra bit of vertical resolution is produced for every factor
of 4 averages. The number of extra bits of vertical resolution is dependent
on the time per division setting (sweep speed) of the oscilloscope.
The slower the time/div setting, the greater the number of samples that
are averaged together for each display point.
Figure 40 128 Averages used to reduce random noise