Configuring the Internal Baseband Source
R&S
®
SMW200A
349User Manual 1175.6632.02 ─ 16
3. Do not change the displayed segment index (parameter "ARB > Trigger In (MSW)
> Next Segment Trigger In > Segment").
4. Enable "ARB > Trigger > Trigger Mode = Auto"
5. Select "ARB > Trigger > Trigger Source = External Global/Local Trigger"
6. If the waveforms in the multi-segment file feature different sample rates, select
"ARB > Multi Segment > Level/Clock/Marker > Clock Mode = Highest" or "Clock
Mode = User" to resample the waveforms.
The switch over between the segments is triggered by receiving of an external trig-
ger event. The segments are output in incremental order, i.e. Seg#0, Seg#1, etc.
The currently processed segment ("Current Segment") is output continuously as
long as a new trigger event is received. A new trigger event aborts the output of the
current segment immediately and starts the processing of the next one in the
sequence.
Tip: To output the segments in any order, use the ARB sequencer mode, see "To
configure a multi-segment sequence using the play list function" on page 349.
Refer to Chapter 11.2.7, "How to Enable Signals and Perform Signal to Connector
Mapping", on page 677 for general description on the configuration of the trigger
and connector settings.
To configure a multi-segment sequence using the play list function
The ARB Sequencer mode requires waveform files with equal clock rate!
We assume, that a multi-segment sequence composed of four segments (Seg#0,
Seg#1, Seg#2 and Seg#3) is created and loaded in the ARB (see "To apply a manual
segment switch to the output segments in the required order" on page 346). The
required output order of the segments is Seg#0, Seg#3 [2], Seg#2. The instrument is
operated manually, the ARB generator is in active state, and the instrument output is
switched on.
The following settings show an example of how to configure this segment output order
with the help of the ARB sequencing function.
1. In the "ARB > Multi Segment" dialog, load the previously created list and execute
"Create and Load".
2. Select "ARB > Multi Segment > General > Sequencing List".
The "Multi Segment Waveform Sequencing" dialog opens. A new play list is cre-
ated and assigned to the current multi-segment waveform file.
3. Select "ARB: Multi Segment Waveform Sequencing > Sequencing Play List" and
use the "Append" function to add new rows to the list and configure the settings as
follows:
a) Id#0: Seg#0, "Rep. Cycles = 1", "Next = Next Id#"
b) Id#1: Seg#3, "Rep. Cycles = 2", "Next = Next Id#"
Generating Multi-Segment Waveform Files
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