Rohde & Schwarz FPL1000 Series, Руководство пользователя

Страница: 507 / 899

The Spectrum Application (RF Measurements)
R&S
®
FPL1000
507 User Manual 1178.3370.02 ─ 03
7.12 Zoomed Displays
You can zoom into the diagram to visualize the measurement results in greater detail.
Using the touchscreen or a mouse pointer you can easily define the area to be
enlarged.
Zoom and the number of sweep points
Note that zooming is merely a visual tool, it does not change any measurement set-
tings, such as the number of sweep points!
You should increase the number of sweep points before zooming, as otherwise the
function has no real effect (see
Chapter 7.6.1.8, "How Much Data is Measured: Sweep
Points and Sweep Count" , on page 395).
● Single Zoom Versus Multiple Zoom ...................................................................... 507
● Zoom Functions .................................................................................................... 509
● How to Zoom Into a Diagram ................................................................................ 510
7.12.1 Single Zoom Versus Multiple Zoom
Two different (graphical) zoom modes are available: single zoom and multiple zoom. A
single zoom replaces the current diagram by a new diagram which displays an
enlarged extract of the trace. This function can be used repetitively until the required
details are visible. In multiple zoom mode, you can enlarge up to four different areas of
the trace simultaneously. An overview window indicates the zoom areas in the original
trace, while the zoomed trace areas are displayed in individual windows. The zoom
areas can be moved and resized any time. The zoom area that corresponds to the indi-
vidual zoom display is indicated in the lower right corner, between the scrollbars.
Zoomed Displays