Getting Started
R&S
®
SMW200A
72User Manual 1175.6632.02 ─ 16
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 2.3.2, "Generating a Digitally Modulated Signal",
on page 69 by the configuration of the required trigger signal and connector settings.
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 signal analyzer, like the R&S
®
FSW, as additional equip-
ment.
To start the signal generation in Baseband A synchronous to an external global
trigger signal
The configuration requires three main steps with the following goals:
1. Observe the current connector configuration and define an input connector for the
external global trigger signal.
See "To verify the current connector configuration" on page 72
2. Configure Baseband A to use this external global trigger signal as trigger source.
See "To reconfigure the trigger settings" on page 75
3. Connect the instrument and the external trigger source.
See "To connect the instrument and the external trigger source" on page 76
To verify the current connector configuration
The R&S SMW is equipped with multi-purpose bi-directional local T/M/C connectors
and global USER connectors. Because the signal direction, input or output, and the
signal mapping are configurable, we recommend that you check the current configura-
tion before cabling or further instrument's configurations.
1. To display an overview of the current mapping of the logical signals to the connec-
tors, perform one of the following:
● In the block diagram, select the Trigger/Marker/Clock status LEDs on the left
side of the "Baseband" block.
● Select "Baseband > Trigger Marker Clock".
Trying Out the Instrument