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Triggering on Waveforms
3–72
TDS 500C, TDS 600B, & TDS 700C User Manual
Trigger Position Relative to the
Display and Waveform Record
Trigger Point Indicator
Indicating the Trigger Position
on the Waveform Record
Trigger Bar Indicating the Trigger
Level on the Waveform Record
Figure 3–37: Record View, Trigger Position, and Trigger Level Bar Readouts
Each trigger type (edge, logic, and pulse) has its own main trigger menu, which
is described as each type is discussed in this section. To select the trigger type,
press TRIGGER MENU ➞ Type (main) ➞ Edge, Logic, or Pulse (pop-up).
Triggering on a Waveform Edge
The TDS Oscilloscope can trigger on an edge of a waveform. An edge trigger
event occurs when the trigger source passes through a specified voltage level in a
specified direction (the trigger slope). You will likely use edge triggering for
most of your measurements. This subsection describes how use edge trigger-
ing — how to select edge type, source, coupling, slope, and level. It also details
how to select trigger mode, auto or normal, for all trigger types.
To quickly check if edge triggers are selected, check the Trigger readout. When
edge triggers are selected, the trigger readout displays the trigger source, as well
as the trigger slope and level. (See Figure 3–38.)
Trigger Menu
To Check Edge
Trigger Status