Question
Calibration is performed remotely using the ZV-Z52, ZV-Z53 calibration units etc. Is there a way to request that calibration be performed?
Calibration Unit and Remote Calibration
Answer
The remote request
[SENSe<Ch>:]CORRection:DATE?
returns the acquisition date of the active error correction data.
For channel 1 write:
SENSE1:CORRection:DATE?
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The remote request
[SENSe<Ch>:]CORRection:SSTate?
returns the state of the active error correction data 'Cal', 'Cai', 'Ca?', 'Cav', 'Cal Off' (see below).
For channel 1 write:
SENSE1:CORRection:SSTate?
Cal
System error correction is performed without interpolation. This means that a set of measured correction data
is available at each sweep point.
Cal int
System error correction is performed, but the correction data for at least one sweep point is interpolated from the measured values. This means that the channel settings have been changed so that a current sweep point is different
from the calibrated sweep points. It is not possible to disable interpolation.
Cav
System error correction uses variable calibration methods to calculate a measurement parameter. This happens, for example, if a Z-parameter is calculated from S-parameters that are partly factory-calibrated and partly normalized.
This can also happen if an S-parameter is measured with different port impedances, or if the analyzer uses one-port calibration at port 1 and normalization at port 2.
Ca?
System error correction is performed, but the accuracy is questionable for one of the following reasons:
- The attenuator settings during calibration differ from the attenuator settings during measurement.
- The bandwidth settings during calibration differ from the bandwidth settings during measurement.
- The point delay settings during calibration differ from the point delay settings during measurement.
Cal Off!
System error correction is no longer performed (e.g. turned off by the user). See also Calibration Overview.
