Agilent Technologies 54810A User's Quick Start Manual page 68

Using the Oscilloscope
To reinitialize the oscilloscope
The middle of the bar contains the
Horizontal settings and controls
horizontal settings and controls. Leftmost is a button, labeled with an
"H." Clicking on this will display the horizontal setup dialog box.
Next is the current sweep speed. Clicking on this displays a pop-up
numeric keypad so you can set a particular sweep speed. Or, you can
click on the two icons to the right of the sweep speed setting to cycle
through the preset speeds. The leftmost icon shrinks the waveform,
which decreases the sweep speed and increases the time per division.
The rightmost icon stretches the waveform, which increases the sweep
speed and decreases the time per division.
Next is the horizontal position (delay) setting. Clicking on this displays
a pop-up numeric keypad that allows you to set a particular position. Or,
you can use the three icons to the right. The left arrow moves the
waveform to the left, the center "0" resets the delay to zero, and the right
arrow moves the waveform to the right.
Across the toolbar are three vertical arrows. These are the left, center,
and right horizontal reference indicators. Clicking on one of these arrows
moves the horizontal position to the respective horizontal reference
position on the display—left, center, or right. Assuming the horizontal
position is at zero:
• Left means the information on the display is all post trigger.
• Center means the information to the left of center is pre trigger; to
the right is post trigger.
• Right means the information on the display is pre trigger.
The horizontal position value represents the time relative to the trigger
at the respective horizontal reference. When you change the horizontal
sweep speed, the waveforms expand and contract about this reference
position.
The right side of the bar contains the
Trigger settings and controls
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 on it to display a pop-up numeric
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