R&S FSMR3000, User Manual

Page: 120 / 733

Common Measurement Settings
R&S
®
FSMR3000
120 User Manual 1179.0116.02 ─ 02
7.2.4 Optional External Generator Control
If the R&S FSMR3 optional External Generator Control is installed, you can operate
various commercially available generators as an external generator with the
R&S
FSMR3. Thus, scalar network analysis with the R&S FSMR3 is possible.
● About External Generator Control .........................................................................120
● Basics on External Generator Control ...................................................................120
● External Generator Control Settings ..................................................................... 128
● How to Work With External Generator Control ..................................................... 132
● Measurement Example: Calibration with an External Generator .......................... 135
7.2.4.1 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
FSMR3. In this setup, the
signal 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.
7.2.4.2 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 ...........................................................................120
● Overview of Supported Generators .......................................................................123
● Generator Setup Files ...........................................................................................125
● Coupling the Frequencies ..................................................................................... 125
● Displayed Information and Errors ..........................................................................127
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
FSMR3 supplied with the option.
Input and Frontend