Display
R&S
®
RTM20xx
69
User Manual 1317.4726.02 ─ 01
To configure the zoom area via the rotary knobs
Pressing the horizontal SCALE rotary knob moves the focus between the Y(t)-window
(Time Control), the zoom area (Zoom Control) and the zoom window. The currently
selected screen area is highlighted and displayed in the information bar of the zoom
window. Depending on the selection, the functions of the SCALE and POSITION rotary
knobs may change.
1. Press the horizontal SCALE rotary knob to select "Zoom Control" or "Zoom Win-
dow". The functions for the rotary knobs are the same for both elements; for very high
zoom factors, however, it may be faster to scroll through with the "Zoom Window"
focus.
2. Turn the horizontal SCALE rotary knob counter-clockwise to enlarge the zoom area,
or clockwise to decrease it.
The zoom diagram and the "Z" parameter (
above it are adapted.
3. Turn the horizontal POSITION rotary knob counter-clockwise to move the zoom area
to the left, or clockwise to move it to the right.
The zoom diagram and the "Tz" parameter (
) in the information bar above
it are adapted.
The zoom window displays the data in the defined zoom area from the main time
base in greater detail.
To configure the original Y(t)-diagram
1. Press the horizontal SCALE rotary knob to select "Time Control", the original Y(t)-
window.
2. Press "Main Time Base" to define the scaling for the time base in the original Y(t)-
window in seconds per division. Alternatively, turn the horizontal SCALE rotary knob.
3. Press "Trigger Offset" to define the offset of the trigger point to the reference point
for 0s in the original Y(t)-window. Alternatively, turn the horizontal POSITION rotary
knob.
Note that changing the offset in the original window also changes the offset for the
zoom window (
).
4.3.3 Zoom Menu
The ZOOM key provides functions for configuring the zoom display.
Zoom