Triggering 4
InfiniiVision 7000B Series Oscilloscopes User’s Guide 121
Figure 11 15 ns Narrow Pulse, 20 ms/div, Peak Detect Mode
Using Peak Detect Mode to Find a Glitch
1 Connect a signal to the oscilloscope and obtain a stable display.
2 To find the glitch, press the [Acquire] key, then, press the Acq Mode
softkey until Peak Detect is selected.
3 Press the [Display] key then press the Persist (infinite persistence)
softkey.
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 in gray at lower
intensity. Waveform persistence is not kept beyond the display area
boundary.
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