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3 To Set the Horizontal System
RIGOL
Horizontal Reference
Horizontal reference is the reference position according to which the screen
waveform expands or compresses horizontally when adjusting HORIZONTAL
SCALE. In Y-T mode (this function is not available in X-Y mode and Roll mode), press
MENU  HorRef in the horizontal control area (HORIZONTAL) at the front panel to
select the desired reference mode and the default is “Center”.
1.
Center
When changing the horizontal time base, the waveform expands or compresses
horizontally around the center of the screen.
2.
Trig Pos
When changing the horizontal time base, the waveform expands or compresses
horizontally around the trigger point.
3.
User
When changing the horizontal time base, the waveform expands or compresses
horizontally around the user-defined reference position. In the horizontal
direction, the screen can display a maximum of 700 points with the leftmost as
350 and the rightmost as -350. For example, set the reference position to 150.
User’s Guide for DS2000A
3-9