Configuring the Internal Baseband Source
R&S
®
SMW200A
237User Manual 1175.6632.02 ─ 16
Sample rate or symbol rate Minimum marker duration,
Samples/symbols
Required options
600 MHz to 1200 MHz 4 R&S SMW-B9 and R&S SMW-K526
1200 MHz to 2400 MHz 8 R&S SMW-B9 and R&S SMW-K526
The dependencies in Table 4-7 apply to the following marker modes and in all firmware
options:
●
"Pattern"
●
"On/Off Ratio"
●
"Pulse"
●
"Period"
●
"User Defined"
Delaying Marker Signals
In all the examples listed in "Marker Modes" on page 235, the marker starts at the
beginning of the first generated sample/symbol (sample/symbol no. 1). It is possible
though to delay the start of the marker by an integer number of symbols/sample peri-
ods.
4.5.1.3 Baseband Trigger Signals
The R&S SMW provides several trigger modes, different trigger sources, and some
additional trigger settings to suppress or delay the trigger events. This section provides
an overview of the provided baseband trigger settings and the impact of the trigger set-
tings on the signal generation.
The current signal generation status ("Running" or "Stopped") is continuously dis-
played in the corresponding dialog, indicated in the header of the tab and in the block
diagram of the instrument. This indication is important when an external trigger is
applied.
For information on the trigger signals used in the RF domain, see Chapter 7.6.1, "Sig-
nal Generation and Triggering in the Sweep and List Modes", on page 459.
Trigger
The trigger signals are internally generated or externally supplied signals which start
signal generation at a particular point in time. However, signal generation can also take
place without triggering. In this case, the signal generation stars immediately after the
modulation is enabled.
Trigger event
A trigger event is caused by the received trigger signal. Another possibility to provoke a
trigger event is to execute trigger manually. The "Arm" function stops the signal gener-
ation until subsequent trigger event occurs.
Common Functions and Settings in the Baseband Domain
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