168 Keysight InfiniiVision HD3-Series Oscilloscopes User's Guide
12 Acquisition Control
Using Peak Detect Mode to Find a Glitch
1 Connect a signal to the oscilloscope and obtain a stable display.
2 Open the Acquire dialog box by selecting the sample rate and memory depth
(Acquire) badge or by choosing Setup > Acquire... from the main menu.
3 In the Acquire dialog box, from the Acq Mode drop-down list, select the Peak
Detect acquisition mode.
4 From the menu, choose Setup > Display....
5 In the Display dialog box, select the Persistence tab.
6 Select the Persistence field, and select ∞ Persistence.
Infinite persistence updates the display with new acquisitions but does not
erase previous acquisitions. New sample points are shown at normal intensity
while previous acquisitions are displayed at reduced intensity. Waveform
persistence is not kept beyond the display area boundary.
Press [Clear Display] key to erase previously acquired points. The display will
accumulate points until
∞ Persistence is turned off.
7 Characterize the glitch with Zoom mode:
a Press the [Zoom] key.
b To obtain a better resolution of the glitch, expand the time base.
Use the horizontal position knob ( ) to pan through the waveform to set the
expanded portion of the normal window around the glitch.
Figure 30 Sine With Glitch, Peak Detect Mode
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