Configuring the internal baseband source
R&S
®
SMM100A
182
User Manual 1179.1341.02 ─ 05
Example:
{CONTROL LENGTH: 500}
SOURce:BB:ARBitary:CLISt:TAG? 'CONTROL LENGTH'
Queries the length of the control list.
Response: 500
Manual operation:
See
{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.
Setting parameters:
Length
An ASCII integer value that specifies the number of bytes in the
EMPTYTAG
, i.e. defines the number of bytes from the colon
:
to
the end brace
}
Note:
If you change the content of a waveform file, change also
the
{EMPTYTAG-Length}
value. For example, if you add a tag
or add bytes to a tag, reduce the length by the number of newly
introduced bytes.
EmptySequence
An empty sequence containing blanks only. The number of used
blanks is calculated as the difference between the hex
addresses of the
{WAVEFORM}
tag and the hash sign
#
in the
{EMPTYTAG}
.
The
{WAVEFORM}
tag always starts at hex address #4000.
Example:
{TYPE:SMU-WV, 837236424}
{COPYRIGHT:2003 Rohde&Schwarz SMU}
{DATE:2012-07-11;14:38:01}
{SAMPLES:80000}
{CLOCK:8666666.666666666}
{VECTOR MAX:1.000000038569158}
{LEVEL OFFS:3.333553817875577e-07,0}
{MARKER LIST 1:0:1;1:0;1249:0}
{MARKER LIST 2:0:1;1:0;1249:0}
{MARKER LIST 3:0:1;1:0;1249:0}
{MARKER LIST 4:0:1;1:0;1249:0}
{EMPTYTAG-15947:# ...}
{WAVEFORM-320017:#IQIQIQ...}
The example waveform file contains 436 (0x1b4) bytes before
the
#
sign in the
EMPTYTAG
; the hex address of the
#
sign is
0x1b5
. The
{WAVEFORM}
starts at
0x4000
. The
EMPTYTAG
con-
tains
15946
blanks and has a length of (15946+1) bytes.
Usage:
Setting only
{LEVEL OFFS: RMSOffset_dB,PeakOffset_dB}
(recommended for waveforms)
Using the arbitrary waveform generator (ARB)
