Getting Started
R&S
®
SMW200A
71User Manual 1175.6632.02 ─ 16
Figure 2-7: Display of the used modulation type
The instrument activates automatically "I/Q Mod A", uses the internal trigger and
clock signals, and generates a WCDMA-3GPP signal, modulated with a QPSK 45°
offset modulation.
Figure 2-8: Block diagram: Generating a digitally modulated signal
2.3.3 Triggering the Instrument with an External Signal
The example configurations are rather theoretical cases, because you rarely use the
R&S SMW as a stand-alone instrument. Usually, the instrument would be connected to
a device under test (DUT) and/or other measurement equipment. As a rule, whenever
a test setup requires two or more devices, provide them with a common reference fre-
quency. Some test setups require control of the signal generation start and an exact
Trying Out the Instrument
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