3 Using the Scope Functions  
28 Agilent U1602B/U1604B User’s and Service Guide 
Vertical System Setup
To Change Vertical Reference Ground Position
You can adjust the waveform vertically by pressing the F3 softkey. The 
following Figure 3- 3 displays the vertical position adjustment setting.
Figure 3-3 Adjust vertical position for the waveform displayed. 
1 Press the F3 softkey to enable the setting of the waveform position. 
Turn rotary switch clockwise to move the waveform up and vice- versa 
to move the waveform down. 
2 As you turn the rotary switch  , the corresponding voltage value 
is displayed under the Position header shown in Figure 3- 3. This 
voltage value indicates how far the ground reference is from the center 
of the screen.
3 Notice that the waveform and the ground reference symbol moves 
vertically with respect to the rotary switch position. 
The maximum positive reference offset is 250 mV and the minimum negative reference 
offset is –250 mV.