R&S FSW Series, User Manual

Page: 382 / 1450

Common Measurement Settings
R&S
®
FSW
382 User Manual 1173.9411.02 ─ 43
● About External Generator Control .........................................................................382
● Basics on External Generator Control ...................................................................382
● External Generator Control Settings ..................................................................... 393
● How to Work With External Generator Control ..................................................... 401
● Measurement Example: Calibration with an External Generator .......................... 404
8.2.4.1 About External Generator Control
A common measurement setup includes a signal generator, a device under test (DUT),
and a signal and spectrum analyzer, for example the R&S
FSW. In this setup, the sig-
nal analyzer can control which signal the generator is to send, which is in turn mea-
sured by the analyzer. This process is referred to as
external generator control . The
generator in this setup is referred to as a tracking generator .
A measurement with a tracking generator is useful to measure any effects on the
power level caused by the cables and connectors from the signal generator and the
signal analyzer in advance. The known effects can then be removed from the mea-
surement results in order to obtain accurate information on the DUT.
8.2.4.2 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 following applications.
●
Spectrum Analyzer
●
I/Q Analyzer
●
Analog Demodulation
●
Noise Figure Measurements
● External Generator Connections ...........................................................................382
● Overview of Supported Generators .......................................................................385
● Generator Setup Files ...........................................................................................386
● Calibration Mechanism ..........................................................................................387
● Normalization ........................................................................................................ 387
● Reference Trace, Reference Line and Reference Level .......................................389
● Coupling the Frequencies ..................................................................................... 389
● Displayed Information and Errors ..........................................................................392
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 option.
For more information on configuring interfaces see Chapter 13.1.1, "Remote Control
Interfaces and Protocols" , on page 730.
Data Input and Output