Instrument Function
R&S
®
SMJ100A
169
Operating Manual 1403.7458.32 ─ 14
The Graphics function block is available for instruments with the option:
●
R&S
SMJ-B13 (Baseband Main Module) and one of the options R&S
SMJ-
B9/B10/B11 ( ARB)
●
R&S
SMJ-B62 (Noise Generator)
It is the baseband signal actually generated that is recorded and displayed, and not a
signal calculated on the basis of the set parameters.
This graphical display allows the user to quickly view and check the current signal
characteristics and also gives an overview of the changes in the signal over time. The
signal quality can be permanently monitored. The results of parameter changes on the
signal, such as a change in modulation mode, or the effects of certain configurations,
e.g. the activation of several base stations in the case of (W)CDMA signals, can be
analyzed directly in the display. Freezing the signal and then zooming permit a detailed
evaluation of any signal segment. The definition and display of one or more reference
curves makes it possible to compare various signals (i.e. by comparing the CCDF
(Complementary Cumulative Distribution Function) with different channelization codes,
or the spectra if different filter parameters are selected).
The displayed signal segment can be influenced by selecting the trigger that defines
the time for recording to start. With automatic triggering, the signal is tapped at the
point in the signal path that is best for the respective display. The displayed signal seg-
ment is selected internally depending on the signal such that the signal characteristics
of interest (e.g. the useful signal) are displayed. This selection is appropriate for a rep-
resentative display of the complete signal.
In addition, a user-definable trigger is available with which the displayed signal seg-
ment can be limited.
The time resolution can be set either automatically or manually, whereby for manual
setting the bandwidth for which the trace is to be displayed is selected. The transient
recorders used for signal recording have a variable recording depth which is specified
under the respective display.
In addition to the large graphics window, the display can also be shown in a small win-
dow ("smart graphics"). This window is fitted into the block diagram as a block, and can
be used for basic checking purposes (e.g. whether the signal is still being generated).
Graphical Display - Graphics
Summary of Contents for SMJ100A
Page 34: ...Preface R S SMJ100A 18 Operating Manual 1403 7458 32 14 Notes on Screenshots...
Page 86: ...Preparing for Use R S SMJ100A 70 Operating Manual 1403 7458 32 14 LXI Configuration...
Page 826: ...Remote Control Commands R S SMJ100A 810 Operating Manual 1403 7458 32 14 UNIT Subsystem...
Page 828: ...Maintenance R S SMJ100A 812 Operating Manual 1403 7458 32 14 Storing and Packing...
Page 844: ...Hardware Interfaces R S SMJ100A 828 Operating Manual 1403 7458 32 14 BERT Connector...