RIGOL DS6000 Series - Manual (Page 80)

RIGOL 3 To Set the Horizontal System
DS6000 User’s Guide 3-10
Horizontal Reference
Horizontal reference is the reference position according to which the screen
waveform expands and compresses horizontally when adjusting HORIZONTAL
SCALE. In Y-T mode, press MENU  HorRef in the horizontal control area
(HORIZONTAL) to select the desired reference mode and the default is “Center”.
1. The Center of the Screen
When changing the horizontal time base, the waveform expands or compresses
horizontally around the center of the screen.
2. Trigger Position
When changing the horizontal time base, the waveform expands or compresses
horizontally around the trigger point.
3. User-defined
When changing the horizontal time base, the waveform expands or compresses
horizontally around the user-defined reference position (after selecting “User”,
use the knob to set the reference position and the range is from -350 to 350). 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: