Rohde & Schwarz FSQ series, Быстрый старт

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Quick Start Guide 1313.9652.62 - 02 2.17
R&S FSQ Preparing for Use
Connecting External Devices
2.3.6 Connecting External Generators
The External Generator Control option (R&S FSP-B10) allows you to operate a number of
commercially available generators as a tracking generator on the R&S FSQ. When suitable
generators are used, the R&S FSQ thus allows scalar network analysis to be performed also
outside the frequency range of the internal tracking generator. Appendix
“External Generator
Control” provides a list of generators supported by the option R&S FSP-B10.
The following figure shows the test setup:
The generator is controlled via the – optional – second GPIB interface of the R&S FSQ
(= IEC2, supplied together with the option). With some Rohde & Schwarz generators, it is also
controlled via the TTL synchronization interface that is contained in the AUX CONTROL
interface of the R&S FSQ.
• Using the TTL interface allows you to attain significantly higher
speeds than possible with a pure GPIB control, because the
frequency switching mechanism of the R&S FSQ is directly coupled
to the frequency switching mechanism of the generator.
• To increase measurement accuracy, use a shared reference
frequency to operate the R&S FSQ and the generator. If no
independent 10 MHz reference frequency is available, connect the
reference output of the generator to the reference input of the
R&S FSQ and use
SETUP – REFERENCE EXT to configure the
R&S FSQ to implement the external reference.