Technical data

48 4000 X-Series Oscilloscopes Advanced Training Guide
3 Advanced Triggering, Search & Navigation, and Segmented Acquisition Labs
Your scope should now be triggering at the end of the 5th pulse of the
burst as shown in Figure 26. This particular pulse uniquely meets the
pulse width time qualification of > 250 ns, but < 350 ns. You can select
the +Width measurement if you would like to verify that this pulse has an
approximate width of 300 ns.
Now take note of the narrow infrequent glitch that occurs after the end of
this burst of six pulses. In addition to using the scope’s Pulse Width
trigger type to trigger on “known” pulses that have unique widths, such as
this 300 ns wide pulse, we can also use the Pulse Width triggering mode
to trigger on “unknown” or “unwanted” glitches. Let’s do it.
14 Tap the “ < > >< ” softkey; then select the “<” time qualifier.
15 Tap the < 30 ns softkey; then set the time to < 50 ns.
Figure 26 Triggering on a 300 ns wide pulse using the scope’s Pulse Width triggering
mode.