Instrument Function
R&S
®
SMU200A
308Operating Manual 1007.9845.32 ─ 15
5.7.3 Output of the Baseband Signal - I/Q Out
The R&S Signal Generator provides various outputs of the baseband signal.
The digitally modulated signal can either be output directly or converted to an analog I/
Q baseband output signal. The analog baseband signal can be output single-ended or
differential (non-inverted).
The single ended or differential output requires option R&S SMU-B16, Differential Output.
The signal is output at the I/Q output connectors I OUT/I OUT BAR and Q OUT/
Q OUT BAR on the rear panel of the instrument.
In case of two-path instruments, these connectors can be assigned either to Path A or
Path B.
The output of the digital baseband signal requires the option R&S SMU-B18, Digital I/
Q Out. The signal is output at the standardized (LVDS) digital I/Q interface on the rear
panel.
Digital signal output is possible for path A only.
5.7.3.1 I/Q Out Settings Menu
The settings dialogs for the analog and digital signal output are available in the block
diagram in the "AWGN/IMP" function block as well as in the menu with the same name
which is opened using the MENU key.
Selecting the menu item "I/Q Out Settings" opens a dialog with the parameters for the I/
Q output signal.
The "I/Q Out" Settings dialog is available for analog and digital I/Q output signals. These
dialogs are accessable under the menu sections with the corresponging names.
Impairment of Digital I/Q Signal and Noise Generator - AWGN/IMP Block