R&S FSW-K7, Руководство пользователя

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Measurement Basics
R&S
®
FSW-K7
33 User Manual 1173.9240.02 ─ 23
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 .............................................................................33
● Overview of Supported Generators .........................................................................35
● Generator Setup Files .............................................................................................37
● Calibration Mechanism ............................................................................................37
● Normalization .......................................................................................................... 38
● Reference Trace, Reference Line and Reference Level .........................................40
● Coupling the Frequencies ....................................................................................... 41
● Displayed Information and Errors ............................................................................43
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 option.
For more information on configuring interfaces see the "Remote Control Interfaces and
Protocols" section in the R&S
FSW User Manual.
TTL synchronization
In addition, TTL synchronization can be used with some Rohde & Schwarz generators
connected via GPIB. The TTL interface is included in the AUX CONTROL connector of
the External Generator Control option.
Using the TTL interface allows for considerably higher measurement rates than pure
GPIB control, because the frequency stepping of the R&S
FSW is directly coupled with
the frequency stepping of the generator. For details see Chapter 4.7.4.7, "Coupling the
Frequencies" , on page 41.
In Figure 4-4 , the connection for an R&S SMW is shown.
Receiving Data Input and Providing Data Output