Rohde & Schwarz FSW43 - Input Source Settings

Common Measurement Settings
R&S
®
FSW
318User Manual 1173.9411.02 ─ 19
IF WIDE OUTPUT
If optional hardware R&S FSW-B160/-B320/-B500 for bandwidth extension is instal-
led and activated (i.e. for bandwidths > 80 MHz), the IF output is not available at the IF/
VIDEO/DEMOD output connector, but rather at the additional IF WIDE OUTPUT con-
nector provided by the option.
In this case, the IF output frequency cannot be defined manually, but is determined
automatically depending on the center frequency. For details on the used frequencies
see the data sheet. The currently used output frequency is indicated in the field other-
wise used to define the frequency manually (in the "Output" settings dialog box, see "IF
(Wide) Out Frequency" on page 383).
IF 2 GHz Output
For instrument models R&S FSW43/50/67, the IF output can also be provided at the
alternative IF OUT output connector at a frequency of 2 GHz and with a bandwidth of
2 GHz. The IF output can then be analyzed by a different instrument, for example an
R&S®RTO oscilloscope. If IF 2 GHZ OUT output is activated, the measured values are
no longer available on the display; thus, the trace data currently displayed on the
R&S FSW becomes invalid. A message in the status bar indicates this situation. The
message also indicates whether the sidebands of the IF spectrum output are in normal
or inverted order compared to the RF signal, which depends on the used center fre-
quency.
Prerequisites
Note the following prerequisites for output to the IF OUT connector:
● Instrument model R&S FSW43/50/67; external mixers can be used
● Zero span mode, I/Q Analyzer, or VSA (R&S FSW-K70) application
● Center frequency ≥ 8 GHz
6.2.2 Input Source Settings
The input source determines which data the R&S FSW will analyze.
Input settings can be configured in the "Input" dialog box.
Some settings are also available in the "Amplitude" tab of the "Amplitude" dialog box.
The Digital I/Q and the Analog Baseband input sources are only available in applica-
tions that support I/Q data processing and are described in detail in the R&S FSW I/Q
Analyzer User Manual.
External mixers are not supported in MSRA/MSRT mode.
● Radio Frequency Input..........................................................................................319
● Probe Settings.......................................................................................................321
Data Input and Output