Pulse Triggering
3–92
TDS 420A, TDS 430A, TDS 460A & TDS 510A User Manual
Table 3–7: Pulse Trigger Definitions (Cont.)
Name Definition
Runt either Triggering occurs on a positive or negative going pulse
that crosses one threshold but fails to cross a second
threshold before recrossing the first.
Width positive Triggering occurs on a positive pulse with a width
between, or optionally outside, the user-specified lower
and upper time limits.
Width negative Triggering occurs on a negative pulse with a width
between, or optionally outside, the user-specified lower
and upper time limits.
Operations Common to Glitch, Runt, and Width
The pulse trigger menus let you define the pulse source, select the mode (auto or
normal), and adjust the holdoff. To bring up the Pulse Trigger menu:
Press TRIGGER MENU
➞ Type (main) ➞ Pulse (pop-up) ➞ Class (main) ➞
Glitch, Runt, or Width
(pop-up) (see Figure 3–49).
Figure 3–49: Main Trigger Menu — Glitch Class
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