User Manual

Operating the Instrument
R&S
®
RTH
29Getting Started 1326.1561.02 ─ 03
Fig. 4-4: Enter numerical value and unit
4.3.2 Using the Navigation Wheel
In addition or alternatively to the touchscreen, you can use the wheel to control
the R&S RTH.
When using the wheel, always observe the position of the focus - the orange
frame or other highlighting that marks the active object on the screen.
●
If the focus is on the menu button or somewhere in the menu or dialogs:
–
Turn the wheel to move the focus.
– Press the wheel button to apply the selection.
●
If the focus is on an element in the diagram, for example, on a waveform, cur-
sor line, or trigger level:
– Turn the wheel to change the position of the active element.
– Press the wheel button to toggle the active element, for example, to toggle
the cursor lines, or zoom size and zoom position.
The BACK key closes open dialogs and menus, and resets the focus to the
"Menu" button.
Accessing the Functionality