User`s guide

111
Agilent InfiniiVision 2000 X-Series Oscilloscopes
User's Guide
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9
Triggers
Adjusting the Trigger Level 112
Forcing a Trigger 113
Edge Trigger 113
Pattern Trigger 116
Pulse Width Trigger 119
Video Trigger 121
A trigger setup tells the oscilloscope when to acquire and display data.
For example, you can set up to trigger on the rising edge of the analog
channel 1 input signal.
You can adjust the vertical level used for analog channel edge detection by
turning the Trigger Level knob.
In addition to the edge trigger type, you can also set up triggers on pulse
widths, patterns, and video signals.
You can use any input channel or the "External Trigger Input" on
page 138 BNC as the source for most trigger types.
Changes to the trigger setup are applied immediately. If the oscilloscope is
stopped when you change a trigger setup, the oscilloscope uses the new
specification when you press [Run/Stop] or [Single]. If the oscilloscope is
running when you change a trigger setup, it uses the new trigger
definition when it starts the next acquisition.
You can use the [Force Trigger] key to acquire and display data when
triggers are not occurring.
You can use the [Mode/Coupling] key to set options that affect all trigger
types (see Chapter 10, “Trigger Mode/Coupling,” starting on page 133).