Rohde & Schwarz FSW Series, User Manual

Page: 36 / 371

Measurement Basics
R&S
®
FSW-K7
36 User Manual 1173.9240.02 ─ 17
input path can also be analyzed in the Spectrum application of the R&S FSW base
unit. Then you can perform RF measurements (measurements in the time or frequency
domain) on the input from a probe.
Microbutton action
You can define an action to be performed by the R&S FSW when the probe's microbut-
ton (if available) is pressed. Currently, a single data acquisition via the probe can be
performed simply by pressing the microbutton.
Impedance and attenuation
The measured signal from the probe is attenuated internally by the probe's specific
attenuation. For probe signals that are redirected to the RF path, the attenuation is
compensated using a transducer (see
"Frequency sweep measurements on probe
input" on page 34). The reference level is adjusted automatically.
For analog baseband input, the attenuation is compensated without a transducer. In
this case, higher levels are available for the full scale level.
A fixed impedance of 50
Ω
is used for all probes to convert voltage values to power
levels.
4.7.4 Basics on External Generator Control
Some background knowledge on basic terms and principles used for external genera-
tor control is provided here for a better understanding of the required configuration set-
tings.
External generator control is only available in the Spectrum, I/Q Analyzer, Analog
Demodulation and Noise Figure applications.
● External Generator Connections .............................................................................36
●
Overview of Generators Supported by the R&S FSW-B10 Option ......................... 38
● Generator Setup Files .............................................................................................40
● Calibration Mechanism ............................................................................................40
● Normalization .......................................................................................................... 41
● Reference Trace, Reference Line and Reference Level .........................................42
● Coupling the Frequencies ....................................................................................... 43
● Displayed Information and Errors ............................................................................46
4.7.4.1 External Generator Connections
The external generator is controlled either via a LAN connection or via the EXT. GEN.
CONTROL GPIB interface of the R&S
FSW supplied with the R&S FSW-B10 option.
For more information on configuring interfaces see the "Remote Control Interfaces and
Protocols" section in the R&S
FSW User Manual.
Receiving Data Input and Providing Data Output