Rohde & Schwarz 1141.2005.02, Quick Start Manual

Page: 80 / 144

Getting Started
R&S
®
SMU200A
63 Quick Start Guide 1007.9822.62 ─ 13
Fig. 3-3: Operation of I/Q modulator with external I/Q signals applied to the baseband section
Analog Wideband I/Q operation
An external analog I/Q signal is directly applied to the I/Q modulator of the R&S SMU. In
this mode, the entire bandwidth of the I/Q modulator can be utilized. The various capa-
bilities of the baseband section (AWGN, addition of signals, etc) are disabled, however.
Fig. 3-4: Operation of I/Q modulator with external analog I/Q signals directly applied to the I/Q modulator
3.2.2 Two Baseband Generators, One RF Path
Examples of the possible applications of an instrument equipped with two baseband
generators and one RF path are:
●
Addition of real time signals of different standards, e.g. GSM/EDGE and 3GPP FDD
Applications of the Instrument