Configuring the Internal Baseband Source
R&S
®
SMW200A
332User Manual 1175.6632.02 ─ 30
{CONTROL LENGTH: ControlLength}
(optional / recommended for marker and control lists)
The tag specifies the length of all control or marker list in ASCII format.
The control length influences the way the marker and control lists are processed, in
particular the way traces are repeated; see Figure 5-22.
Figure 5-22: Example: Processing of MARKER TRACE if CONTROL LENGHT is specified
If the CONTROL LENGTH tag is not used, the marker and control list length are deter-
mined by the last position, that is the last {Pos:State} couple, defined in the particular
[TRACE] LIST tag; see Figure 5-23.
Figure 5-23: Example: Processing of MARKER TRACE if CONTROL LENGHT is not used
To maintain marker signals and waveform data synchronized, set the
CONTROL
LENGTH to be equal to the number of samples specified with the tag SAMPLES.
See also Chapter 5.7.4.6, "How to Define Periodically Repeating Traces", on page 323.
Example:
{CONTROL LENGTH: 500}
SOURce:BB:ARBitary:CLISt:TAG? 'CONTROL LENGTH'
Queries the length of the control list.
Response: 500
Manual operation: See "Total List Length" on page 283
{EMPTYTAG-Length: #EmptySequence}
(mandatory in automatically generated one and multi-segment waveforms)
This tag is empty, i.e. contains no data, and is used as placeholder.
Using the Arbitrary Waveform Generator (ARB)