The Spectrum Application (RF Measurements)
R&S
®
FPL1000
440
User Manual 1178.3370.02 ─ 09
Multi-Zoom
In multiple zoom mode, you can enlarge several different areas of the trace simultane-
ously. An overview window indicates the zoom areas in the original trace, while the
zoomed trace areas are displayed in individual windows. The zoom area that corre-
sponds to the individual zoom display is indicated in the lower right corner, between the
scrollbars.
Remote command:
DISPlay[:WINDow<n>][:SUBWindow<w>]:ZOOM:MULTiple<zn>[:STATe]
DISPlay[:WINDow<n>][:SUBWindow<w>]:ZOOM:MULTiple<zn>:AREA
Measurement Zoom
As opposed to the graphical zoom, which is merely a visual tool, the measurement
zoom adapts the measurement settings such that the data you are interested in is dis-
played in the required detail. In measurement zoom mode, you can change the display
using touch gestures. This is the default operating mode of the R&S
FPL1000.
For details on touch gestures see "Operating Basics" in the R&S
FPL1000 Getting
Started manual.
Note:
The measurement settings are adapted to practical values based on a suitable
grid for the current settings, rather than to unwieldy values that reflect precisely the
pixel you happen to tap.
If the measurement zoom leads to undesirable results, you can easily return to the
original measurement settings using the "UNDO" function.
When you select the "Measurement Zoom" icon, then tap in a diagram, a dotted rect-
angle is displayed which you can drag to define the zoom area. This allows you to
define the zoom area more precisely than by spreading two fingers in the display.
The measurement zoom function provides further options in a context-sensitive menu,
which is displayed when you tap the icon for a second or so (or right-click it). These
options concern the behavior of the firmware for subsequent touch gestures on the
screen. Note that these settings remain unchanged after a channel preset.
Level Lock ← Measurement Zoom
If activated (default), the reference level (and thus the attenuation) is locked, that is:
remains unchanged during touch gestures on the screen.
Zoomed Displays
