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Coupling
Use “Coupling” to make sure the signal passes through the trigger circuit.
It is useful for obtaining a steady waveform.
If you use trigger coupling, you should press the “TRIG MENU” button and
then select “Edge”, “Pulse”, “Video”, or “Slope” trigger. Then select the
“Coupling” option in the “Set Up menu”.
Position
The horizontal position control establishes the time between the trigger
position and the screen center. You can adjust the horizontal “POSITION”
knob control to view waveform data before the trigger, after the trigger,
or some of each. When you change the horizontal position of a waveform,
you are changing the time between the trigger and the center of the
display actually. (This appears to move the waveform to the right or left on
the display.)
Slope and Level
The Slope and Level controls help to define the trigger. The Slope option
(Edge trigger type only) determines whether the oscilloscope finds the
trigger point on the rising and/or the falling edge of a signal.
The TRIGGER LEVEL knob controls at what point on the edge the trigger
occurs.
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