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Command reference
R&S
®
ZND
630
User Manual 1173.9557.02 ─ 61
The following parameters are related to trace data (see also diagram in
Table 7-2: Data format identifiers used in the CALCulate:DATA... commands
FDATa
Formatted trace data, according to the selected trace 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
.
1 and 2 (S11, S12, S21, S22)
SCORr13
Directivity
3 (S33)
SCORr14
Source match
3 (S33)
SCORr15
Reflection tracking
3 (S33)
SCORr16
Isolation
3 (S31)
SCORr17
Load match
3 (S31)
SCORr18
Transmission tracking
3 (S13)
SCORr19
Isolation
1 (S13)
SCORr20
Load match
1 (S13)
SCORr21
Transmission tracking
1 (S13)
SCORr22
Isolation
3 (S32)
SCORr23
Load match
3 (S32)
SCORr24
Transmission tracking
3 (S32)
SCORr25
Isolation
2 (S23)
SCPI command reference
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