R&S SMW200A, Начало работы

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Trying Out the Instrument
R&S
®
SMW200A
60 Getting Started 1412.9220.02 ─ 21
To learn more about this topic, refer to:
●
Chapter "Local and Global Connectors" in the user manual
●
Chapter "Regular Trigger Signals" in the user manual
6.4 Enabling and Configuring a Marker Signal
Test setups often require that an external device is synchronized to the generated
data stream. For this purpose, the R&S
SMW can output marker signals (or mark-
ers) additionally to the generated signal. The R&S SMW provides several regular
marker signals and marker signals specific to the firmware option. With suitable
marker settings for instance, you can mark slot or frame boundaries or mark the
start of a particular modulation symbol.
This example extends further the configurations performed in Chapter 6.2, "Gen-
erating a Digitally Modulated Signal" , on page 51. We assume a default connector
mapping (see Figure 6-5 ).
In this example, we use the global USER connectors. Alternatively, you can
achieve the same configuration goal with the local
T/M/C connectors.
This test setup requires one oscilloscope, like the R&S
®
RTO, as additional equip-
ment.
1. In the block diagram, select "Block Diagram > Baseband > Misc > Custom
Digital Mod > Marker" tab.
2. Select "Marker Mode > Marker 1 > Pulse" and "Divider = 32".
Generated is a periodic marker with marker frequency of 120 KHz. The signal
is output at the USER 1 connector of the R&S
SMW (see Figure 6-5 ).
3. Use a suitable cable to connect the USER 1 connector of the R&S SMW to
the monitoring instrument, for example oscilloscope like R&S
®
RTO, see Fig-
ure 6-7 .
Enabling and Configuring a Marker Signal