Keysight U1610A - Horizontal Modes; Figure 3-4 Zoom Mode

Using the Oscilloscope 3
Keysight U1610/20A User’s Guide 51
Horizontal modes
Press to access the horizontal mode menu.
Main mode
Press to access the Main mode, which is the normal viewing mode for
the oscilloscope.
Zoom mode
Press to access the Zoom mode, which is a horizontally expanded
version of the normal display. When Zoom is enabled, the display divides in half,
where the top half shows the normal sweep and the bottom half displays the
zoom sweep.
The area of the normal display that is expanded is outlined with a box.
controls the size of the box and sets the position of
the zoom sweep.
Figure 3-4 Zoom mode