R&S SMW200A, Начало работы

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Trying Out the Instrument
R&S
®
SMW200A
53 Getting Started 1412.9220.02 ─ 21
Figure 6-4: Block diagram: Generating a digitally modulated signal
6.3 Triggering the Instrument with an External Sig-
nal
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 frequency. Some test setups require control of the signal gen-
eration start and an exact generation start time, determined by a defined trigger
event, e.g. by triggering the instrument internally or externally from the DUT.
This example illustrates the general principle of external triggering and extends
the configuration performed in
Chapter 6.2, "Generating a Digitally Modulated
Triggering the Instrument with an External Signal