Monitoring Signal Characteristics
R&S
®
SMW200A
559User Manual 1175.6632.02 ─ 16
8 Monitoring Signal Characteristics
The R&S SMW is a highly configurable signal generator with versatile routing possibili-
ties and level settings distributed over several dialogs. To optimize the signal genera-
tion process and to help monitoring the variation of the signal parameters through the
instrument, the R&S SMW is equipped with a real time graphical signal display and a
power level surveillance function.
This section explains the provided functions for monitoring of the signal characteristics
in real time. Here you can find out how to visualize the generated signal with measure-
ment diagrams and how to enable measurements on the baseband power levels.
8.1 Displaying Baseband Signal Characteristics in Real-
Time
In test setups, you usually use signal and spectrum analyzers or an oscilloscope to dis-
play and analyze the characteristics of the generated signal. In the R&S SMW, you can
also use the built-in graphical signal display function and visualize a subset of signal
characteristics.
8.1.1 Required Options
The minimum equipment layout for using this function includes
●
Option Standard or Wideband Baseband Generator (R&S SMW-B10/-B9) per sig-
nal path
●
Option Baseband main module, one/two I/Q paths to RF (R&S SMW-B13/-B13T) or
Option Wideband baseband main module two I/Q paths to RF (R&S SMW-B13XT)
8.1.2 About the Graphical Signal Display
To ease the setting and routing of baseband signals, R&S SMW is able to capture
these signals and display them graphically in different ways: as I/Q, vector, eye or con-
stellation diagram, as power spectrum or as statistical evaluations.
In the digital domain, the measurements are based on recorded I/Q samples. The
sources of these samples are selectable points (acquisition points) in the signal flow.
You can configure and display the signal characteristics simultaneously in up to dia-
grams.
8.1.2.1 Available Diagrams
This section focuses on graphical signal displays, their content and application. See
Table 8-1 for an overview of the signal characteristics you can monitor.
Displaying Baseband Signal Characteristics in Real-Time
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