Agilent Technologies DSO9024H, User Manual, Page: 57 / 102

Using the Oscilloscope
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is post-trigger.
• Right means the information on the display is pretrigger.
The horizontal position value represents the time relative to the trigger at the
respective horizontal reference. When you change the horizontal scale, the
waveforms expand and contract about this reference position.
Trigger settings and controls The right side of the Horizontal and
Trigger toolbar contains the trigger settings and controls. These will vary
depending on the current trigger configuration, which can be set using the
front panel and the graphical interface. Advanced trigger configuration
items are available only through the graphical interface. You can click on
the button labeled with a “T” to bring up the trigger setup dialog box.
When the scope is set for edge trigger on a particular channel, the trigger level
setting is shown. You can click it to display a pop-up numeric keypad that lets
you set a particular trigger level. You can also click the up and down arrows
to the right of the setting to increase or decrease the trigger level, respectively.
You can also click the trigger reference indicator at the right side of the display
and drag it up or down to change the trigger level.