GW Instek GDS-3000 Series User Manual - Manual (Page 121)

CONFIGURATION
121
Example BW Full BW Limit 20MHz
Expand by Ground/Center
Background When the voltage scale is changed, the Expand
function designates whether the signal expands
from the center of the signal or from the signal
ground level. Expand by center can be used to
easily see if a signal has a voltage bias. Expand by
ground is the default setting.
Panel Operation 1. Press a channel key.
CH1
2. Press Expand repeatedly to toggle
between expand By Ground and
Center.
Range By Ground, By Center