Technical data

Advanced Triggering, Search & Navigation, and Segmented Acquisition Labs 3
3000 X-Series Oscilloscopes Advanced Training Guide 49
scope usually triggers on the 1st pulse of this burst. Let’s now set up the
scope to trigger on the 3rd pulse in this burst using the “Nth Edge Burst”
triggering mode.
9 Press the [Trigger] front panel key; then select Nth Edge Burst using the
Entry knob.
10 Press the Idle softkey; then set the minimum signal idle time to 2.00 µs
using the Entry knob.
11 Press the Edge softkey; then set the edge count to 3 using the Entry
knob.
Your scope should now be triggering on the 3rd rising edge in this burst
as shown in Figure 30. Note that the idle time setting of 2.00 µs defines
when a burst ends and begins. This setting must be set to a value that is
greater that the longest legitimate pulse width within the burst, but less
than signal idle time between each occurrence of the burst. To trigger on
other edges within this burst, vary the Edge count setting between 1 and
7.
Figure 30 Triggering on the 3rd pulse in the burst using the “Nth Edge Burst” triggering
mode.