48
3000 X-Series Oscilloscopes Advanced Training Guide
3
Advanced Triggering, Search & Navigation, and Segmented Acquisition Labs
Lab #9: Triggering on the Nth Pulse within a Burst using “Nth Edge Burst”
Trigger
In this lab you will learn how to use the scope’s “Nth Edge Burst”
triggering mode to trigger on pulses within a burst based on pulse count.
Note that we will be using the same training signal that we used in the
previous lab.
1
Connect the channel- 1 probe to the Demo 1 terminal and ground.
2
Press
[Default Setup]
on the scope’s front panel.
3
Press
[Help]
; then press the
Training Signals
softkey.
4
Using the Entry knob, select the
Digital Burst with Infrequent Glitch
signal;
then press the
Output
softkey to turn it on.
5
Set channel- 1’s vertical scaling to
1.00 V/div
.
6
Set channel- 1’s offset/position to approximately
+1.7 V
in center the
waveform on- screen.
7
Set the trigger level to
+1.00 V
(~1 division above bottom of waveform).
8
Set the scope’s timebase to
500 ns/div
.
You should now see on your scope’s display a digital burst waveform
consisting of six pulses of various widths, followed by an infrequent glitch
similar to
. Using the scope’s default Edge triggering mode, the
Figure 29 Capturing a digital burst using the scope’s default Edge triggering mode.