
3Capturing Data
76 Agilent 3000 Series Oscilloscopes User’s Guide
Adjusting the Trigger Level
To adjust the trigger level
• Turn the trigger Level knob.
Two things happen:
• The trigger level value is displayed at the lower left- hand corner of
the screen. If the trigger is DC coupled, it is displayed as a voltage.
If the trigger is AC coupled or LF reject coupled, it is displayed as a
percentage of the trigger range.
• A line is displayed showing the location of the trigger level with
respect to the waveform (except when using AC coupling or LF reject
coupling modes).
• Push 50%
to set the level at 50% of the signal’s vertical amplitude.
Figure 36 Trigger Controls
Trigger level knob
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