Triggering
TDS5000 Series User Manual
3-73
Use this procedure to detect and trigger on a pulse that is either wider or
narrower than the specified range.
Overview To trigger based on pulse width Control elements and resources
Select width
triggering
1. Push the front-panel ADVANCED button.
2. On the Trigger Setup control window, select the A Event
tab.
3. Click Width.
Select the
source
4. To specify which channel becomes the trigger source,
click Source and select the source from the list.
Select the
polarity
5. To specify the polarity of the pulse, click Pos (for
positive-going pulses) or Neg (for negative-going
pulses).
Set the range 6. To set the range of pulse widths in units of time, click
Upper or Lower Limit and enter the values with the
multipurpose knobs or pop-up keypad:
H Upper Limit is the maximum valid pulse width the
trigger source will look for.
H Lower Limit is the minimum valid pulse width. The
oscilloscope will always force the Lower Limit to be
less than or equal to the Upper Limit.
7. Click Trigger When and select Inside to trigger on pulses
that fall within the specified range, or Outside to trigger
on pulses that are outside the range.
Set the level 8. Click Level and use the multipurpose knob or pop-up
keypad to set the trigger level.
Triggering on the Pulse
Width