R&S ZNB Series - Page 848

Command reference
R&S
®
ZNB/ZNBT
848User Manual 1173.9163.02 ─ 62
Example: Writing memory traces
*RST; SWE:POIN 3
Create a data trace 'Trc1' with 3 sweep points, making the cre-
ated trace the active trace of channel 1 (omitted optional mne-
monic SENSe1).
TRAC:COPY 'MemTrc1','Trc1'; :CALC:PAR:SEL
'MemTrc1'
Copy the data trace to a memory trace and select the memory
trace as an active trace.
CALC:DATA SDAT, 1,2, 3,4, 5,6
Write numbers (1,2), (3,4), (5,6) to the memory trace.
CALC:DATA? SDAT
Query the memory trace. The response is 1,2,3,4,5,6.
FORM REAL,32
Change the data format to 4-byte block data.
CALC:DATA SDAT, #224123456789012345678901234
Write 24 bytes (= 4 * 2 * 3 bytes) of data to the memory trace.
The following parameters are related to trace data (see also diagram in Chapter 4.1.5,
"Data flow", on page 98):
Table 7-2: Data format identifiers used in the CALCulate:DATA... commands
FDATa Formatted trace data, according to the selected trace format
(CALCulate<Chn>:FORMat). One value per trace point for Cartesian diagrams,
two values for polar diagrams.
[Data access point 6]
SDATa Unformatted trace data: real and imaginary part of each measurement point. Two
values per trace point irrespective of the selected trace format. The trace mathe-
matics is not taken into account.
[Data access point 4]
MDATa Unformatted trace data (see SDATa) after evaluation of trace mathematics.
[Data access point 5]
NCData Factory calibrated trace data: the values are obtained right after applying the fac-
tory calibration but before applying a user-defined calibration (if any).
[Data access point 1]
UCData Uncalibrated trace data.
[Data access point 0]
Note:
●
the respective trace must represent a wave quantity or ratio
●
driving and receiving port must not be on a switch matrix
Otherwise an error occurs.
The following parameters denote the error terms generated during a calibration.
Table 7-3: Error terms in the CALCulate:DATA... commands
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)
SCPI command reference