R&S FSW Series, Руководство пользователя

Страница: 64 / 1450

Getting Started
R&S
®
FSW
64 User Manual 1173.9411.02 ─ 43
5. Tap the "Calibration Frequency RF" option. Leave the frequency at the default
64 MHz, with a narrowband spectrum.
The calibration signal is now sent to the RF input of the R&S FSW. By default, a
continuous frequency sweep is performed, so that the spectrum of the calibration
signal is now displayed in the standard level versus frequency diagram.
Figure 5-4: Calibration signal as RF input
Instrument warmup time
Note that the instrument requires an initial warmup time after switching it on. A mes-
sage in the status bar ("Instrument warming up...") indicates that the operating temper-
ature has not yet been reached. Wait until this message is no longer displayed before
you start a measurement.
To optimize the display
To optimize the display for the calibration signal, we will adjust the main measurement
settings.
1. Set the center frequency to the calibration frequency:
a) Tap the "Overview" softkey to display the configuration "Overview".
b) Tap the "Frequency" button.
c) In the "Center" field, enter
64 on the number pad on the front panel.
d) Press the "MHz" key next to the number pad.
2. Reduce the span to 20 MHz:
a) In the "Span" field of the "Frequency" dialog box, enter 20 MHz .
b) Close the "Frequency" dialog box.
3. Set the reference level to -25 dBm:
Trying Out the Instrument