Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 512 / 813

CALCulate R&S
®
ZVA/ZVB/ZVT
1145.1084.12 6.50 E-6
Detailed Command Reference
CALCulate
This subsystem provides access to the results of a measurement.
The trace data is transferred in either ASCII or block data (REAL) format, depending on the
FORMat[:DATA] setting. If the block data format is used, it is recommended to select EOI as
receive terminator (
SYSTem:COMMunicate:GPIB[:SELF]:RTERminator EOI
).
CALCulate<Ch/Tr>:DATA FDATa | SDATa | SCORr1 | ... | SCORr27
Reads the current response values of the active data trace or memory trace and reads or writes error
terms.
<Ch/Tr> Channel number used to identify the active trace. If unspecified the
numeric suffix is set to 1.
Parameters See list of parameters below.
Range [def.
unit]
The data format is parameter-dependent; see below. The unit is the
default unit of the measured parameter; see
CALCulate<Ch>:PARameter:SDEFine
.
*RST value –
SCPI,
Command
Types Confirmed, command (for error terms) or query.
Example:
*RST; SWE:POIN 20
Create a trace with 20 sweep points, making the created trace the
active trace of channel 1 (omitted optional mnemonic
SENSe1
).
CALC:DATA? FDAT
Query the 20 response values of the created trace. In the FDATa
setting, 20 comma-separated ASCII values are returned.
CALC:DATA:STIM?
Query the 20 stimulus values of the created trace. 20 comma-
separated ASCII values are returned.
The following parameters are related to trace data:
FDATa Formatted trace data, according to the selected trace format (
CALCulate<Ch/Tr>:FORMat
). 1 value per
trace point for Cartesian diagrams, 2 values for polar diagrams.
SDATa Unformatted trace data: Real and imaginary part of each measurement point. 2 values per trace point
irrespective of the selected trace format.
The following parameters denote the error terms generated during a calibration:
Error Term Description Receive Ports (S-
parameter)
SCORr1, ...
SCORr12 2-port error terms; see
[SENSe<Ch>:]CORRection:DATA. 1 and 2 (S11, S12, S21,
S22)
SCORr13 Directivity 3 (S33)