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SDS5000X Series Digital Oscilloscope User Manual
221 / 236 W W W. S I G L E N T. C O M
27.9 Reference Position Setting
The reference position is used to set the strategy of scaling on the horizontal
and vertical axes, adapting different requirements.
Operate Utility>Reference Pos to open the dialog box, and choose the strategy
for the offset value change in the vertical (or horizontal) direction when the
vertical (or horizontal) scale is changed.
Horizontal Ref
Fixed Delay: When the timebase is changed, the horizontal delay
value remains fixed. As the horizontal timebase scale is changed, the
waveform expands/contracts around the center of the display
Fixed Position: When the timebase is changed, the horizontal delay
remains fixed to the grid position on the display. As the horizontal
timebase scale is changed, the waveform expands/contracts around
the position of the horizontal display.
Vertical Ref
Fixed Offset: When the vertical scale is changed, the vertical offset
remains fixed. As the vertical scale is changed, the waveform
expands/contracts around the main X axis of the display
Fixed Position: When the vertical scale is changed, the vertical offset
remains fixed to the grid position on the display. As the vertical scale
is changed, the waveform expands/contracts around the position of the
vertical ground position on display.
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