Configuring the Internal Baseband Source
R&S
®
SMW200A
285User Manual 1175.6632.02 ─ 30
Remote command:
n.a.
Save/Save As
Saves the changes in the selected control list file or in a new file.
Remote command:
n.a.
5.6.4 How to Create Data and Control Lists
This section provides step-by-step instructions on configuring and using the provided
settings. For details on individual functions and settings, see Chapter 5.6.3, "Custom
Digital Modulation Settings", on page 262.
To generate a digitally modulated signal
► To generate a simple 3GPP digitally modulated signal, follow the instructions in
Chapter 3.3.2, "Generating a Digitally Modulated Signal", on page 55.
To apply an external clock signal
Internal and external clock synchronization
The correct synchronization of the internal clock synthesizer requires that the following
procedure is maintained.
1. Supply the instrument with the external clock, i.e. connect the external reference
clock source to the suitable instrument's connector.
2. If necessary, adjust the corresponding connector settings.
3. Adjust the "Symbol Rate".
The selected symbol rate must not deviate from the symbol rate of the external sig-
nal by more than 2% (see also data sheet).
4. Enable "Clock Source External".
5.6.4.1 How to Create and Assign a Control List
The R&S SMW provides the following ways to create a file containing control signals:
●
To use the dedicated Control and Marker Lists Editor and create a file in ASCII for-
mat and with extension *.dm_iqc, see "To create a control list in ASCII format
manually" on page 286
●
To use the tag-oriented format and create a control list file, see "To create a control
list using tag file format" on page 324.
●
To use SCPI commands and create a file in binary format, see "To create a control
list in binary format" on page 325.
Generating Custom Digital Modulated Signals
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