
Using the Oscilloscope
To adjust horizontal scale and horizontal position
3-14
To adjust horizontal scale and horizontal position
• To stretch the waveform horizontally, turn the horizontal scale knob
clockwise. To shrink it horizontally, turn the knob counter-clockwise.
The horizontal scale knob is the larger of the two horizontal control knobs. It is marked
with a set of sine wave symbols. Stretching the waveform means there are fewer
seconds displayed per division. Shrinking the waveform means there are more
seconds displayed per division.
• To move the waveform to the right, turn the horizontal position knob
clockwise. To move the waveform to the left, turn the horizontal position
knob counter-clockwise.
Moving the waveform to the right shows more of the pretrigger data (data acquired
before the trigger event). Moving the waveform to the left shows more of the post-
trigger data (data acquired after the trigger event).
The horizontal position knob is the smaller of the two horizontal control knobs. It is
marked with a set of arrows. There is a detent programmed into the software so there
is a momentary pause at zero while you are turning the knob. Continuing to turn the
knob will move the horizontal position through zero.
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