Chapter 5 Trigger RIGOL
MSO4000/DS4000 User’s Guide 5-13
Pulse Trigger
In pulse trigger, the oscilloscope triggers on the positive or negative pulse with a
specified width.
For this oscilloscope, the positive pulse width is defined as the time difference
between the two crossing points of the trigger level and positive pulse and the
negative pulse width is defined as the time difference between the two crossing
points of the trigger level and negative pulse, as shown in the figure below.
Press MENU (in the trigger control area (TRIGGER) at the front panel) Type, turn
the multi-function knob to select “Pulse” and press the knob. You can also press
Type continuously to switch to “Pulse” trigger.
At this point, the trigger setting information (include the trigger type, trigger source
and trigger level/threshold level, as shown in the figure below) is displayed at the
upper-right side of the screen and changes with the trigger setting.
Set the pulse trigger:
1. Specify the trigger source and adjust the trigger level/threshold level
1) Press Source to select CH1 to CH4, EXT or D0 to D15 (please refer to
“
Trigger Source”). The trigger source currently selected is displayed at
the upper-right side of the screen.
Note: Channels that are turned off can also be selected as the trigger
Positive
Pulse Width
Negative
Pulse Width
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