Technical data

56 3000 X-Series Oscilloscopes Advanced Training Guide
3 Advanced Triggering, Search & Navigation, and Segmented Acquisition Labs
Lab #11: Triggering on and Searching for Runt Pulses
A “runt” pulse is defined as either a positive or negative digital pulse that
fails to meet a minimum required amplitude. In this lab you will learn
how to set up the scope to trigger on runt pulse conditions. In addition,
we will be using the scope’s Search & Navigation capability to
automatically find, mark, and then navigate to runt pulses, as well as use
the scope’s segmented memory acquisition to capture multiple and
consecutive occurrences of runt conditions.
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 Runt Pulses signal; then press the Output
softkey to turn it on.
5 Set channel- 1 to 500 mV/div.
6 Set channel- 1 offset/position to approximately 1.6 V to center the
waveform on- screen.
7 Push the trigger level knob to automatically set the trigger level to
approximately 50%.
8 Set the scope’s timebase to 100.0 ns/div.
Figure 36 Scope display reveals various amplitude pulses while triggering on any rising
edge.