SYSTem:UNCertainty

Contains the settings to create and control Dynamic Uncertainty for S-Parameters (Opt. S93015A).

Setup Options
	SYST:UNC:ETER:NOIS:ENAB
	SYST:UNC:ETER:CABL:REP
	SYST:UNC:ETER:SDEF
	SYST:UNC:POIN:MAX

Noise Characterization
Clear noise data on specified port	SYST:UNC:PORT<p>:NOISe:RESet
Clear noise data on all ports	SYST:UNC:PORT:NOISe:RESet
Copy noise from a port to all ports	SYST:UNC:PORT:NOISe:ALL:COPY
Start Noise char	SENS:CORR:COLL:GUIDed:UNC:CHAR:NOISe

Cables Characterization
List cables	SYST:UNC:CABLe:CATalog?
Assign Cable to all ports	SYST:UNC:PORT:CABLe:ALL
Assign Cable to specified port	SYST:UNC:PORT<p>:CABLe
Reset repeatability	SYST:UNC:CABL:REP:RES
Start Cable char	SENS:CORR:COLL:GUIDed:UNC:CHAR:CABLe

Uncertainty workspace
Load workspace	SYST:UNC:LOAD
Save workspace	SYST:UNC:STORe

Enable a Guided Cal to include Uncertainties
Checkbox on Guided Cal Select Ports page	SENS:CORR:COLL:GUID:UNC

Trace Properties
	CALC:MEAS:UNC:DISP:TYPE
	CALC:MEAS:UNC:DISP:CFAC
	CALC:MEAS:UNC:MOD:NOIS
	CALC:MEAS:UNC:MODE:CABL:REP
	CALC:MEAS:UNC:MOD:ETER
Apply to all traces	None
Add Trace	None
Save uncertainty data	CALC:MEAS:UNC:SAVE

Limitations

Calibrations can be performed for ONLY ONE channel at a time.
Putting Error Term data into Uncertainty Cal Sets using remote commands is NOT supported.

See Also

Trace Commands for Dynamic Uncertainty
Learn more about Dynamic Uncertainty
Example Program
Guided Cal commands
Synchronizing the Analyzer and Controller
SCPI Command Tree

SYSTem:UNCertainty:CABLe:CATalog?

Applicable Models: N522xB, N523xB, N524xB (Read-only) Returns a comma-delimited list of names of cables that are defined in the Uncertainty Manager application.
Parameters	None
Examples	SYST:UNC:CABL:CAT?
Return Type	Comma-delimited string
Default	Not Applicable

SYSTem:UNCertainty:CABLe:REPeat:RESet <cableName>

Applicable Models: N522xB, N523xB, N524xB (Write-only) Resets (clears) the characterized repeatability data associated with the specified cable.
Parameters
<cableName>	String. Name of the cable for which data is to be reset.
Examples	SYST:UNC:CABL:REP:RES "MyCable"
Query Syntax	Not Applicable
Default	Not Applicable

SYSTem:UNCertainty:PORT:CABLe:ALL[:SELect] <cableName>

Applicable Models: N522xB, N523xB, N524xB (Write-only) Sets the name of the cable to be associated with all the ports currently enabled on the VNA
Parameters
<cableName>	String. Name of the cable.
Examples	SYST:UNC:PORT:CABL:ALL "MyCable"
Query Syntax	Not Applicable
Default	Not Applicable

SYSTem:UNCertainty:PORT<pNum>:CABLe[:SELect] <cableName>

Applicable Models: N522xB, N523xB, N524xB (Write-Read) Sets and returns the name of the cable to be associated with the specified port number on the VNA
Parameters
<pNum>	VNA port number.
<cableName>	String. Name of the cable.
Examples	SYST:UNC:PORT3:CABL "MyCable"
Query Syntax	SYSTem:UNCertainty:PORT<pNum>:CABLe[:SELect]?
Return Type	String
Default	Not Applicable

SYSTem:UNCertainty:PORT:NOISe:ALL:COPY <pNum>

Applicable Models: N522xB, N523xB, N524xB (Write-only) Copies the characterized noise data associated with the specified port, to all the other ports
Parameters
<pNum>	VNA port number for which noise data will be copied.
Examples	SYST:UNC:PORT:NOIS:ALL:COPY 2
Query Syntax	Not Applicable
Default	Not Applicable

SYSTem:UNCertainty:PORT:NOISe:ALL:RESet

Applicable Models: N522xB, N523xB, N524xB (Write-only) Resets (clears) the characterized noise data for all currently enabled VNA ports.
Parameters	None
Examples	SYST:UNC:PORT:NOIS:ALL:RESet
Query Syntax	Not Applicable
Default	Not Applicable

SYSTem:UNCertainty:PORT<pNum>:NOISe:RESet

Applicable Models: N522xB, N523xB, N524xB (Write-only) Resets (clears) the characterized noise data for the specified VNA port.
Parameters	None
<pNum>	VNA port number for which noise data will be reset.
Examples	SYST:UNC:PORT2:NOIS:RESet
Query Syntax	Not Applicable
Default	Not Applicable

SYSTem:UNCertainty:LOAD <filename>

Applicable Models: N522xB, N523xB, N524xB (Write-only) Loads an uncertainty ‘workspace’ (*.ml4) file into the Uncertainty Manager.
Parameters	None
<filename>	String. Full path, filename, and extension of the uncertainty workspace file, enclosed in quotes.
Examples	SYST:UNC:LOAD "C:\MyUncert.ml4"
Query Syntax	Not Applicable
Default	Not Applicable

SYSTem:UNCertainty:STORe [filename]

Applicable Models: N522xB, N523xB, N524xB (Write-only) Saves the current uncertainty ‘workspace’ of the Uncertainty Manager to a (‘.ml4’) file.
Parameters	None
<filename>	String. Optional argument. Full path, filename, and extension of the uncertainty workspace file, enclosed in quotes. If filename is not specified, the current workspace is saved to the default workspace (*.ml4) file.
Examples	SYST:UNC:STORe "C:\MyUncert.ml4"
Query Syntax	Not Applicable
Default	Not Applicable

SYSTem:UNCertainty:POINts:MAXimum <num>

Applicable Models: N522xB, N523xB, N524xB (Write-Read) Sets and returns the maximum number of points (“decimation value”) for which uncertainties are to be computed for subsequent calibrations that are performed using Dynamic Uncertainty for S-Parameters.
Parameters
<num>	Max number of points. Specify an integer between 0 and 501.
Examples	SYST:UNC:POIN:MAX 201
Query Syntax	SYSTem:UNCertainty:POINts:MAXimum?
Return Type	Numeric
Default	500

SYSTem:UNCertainty:ETERm:NOISe:ENABle <bool>

Applicable Models: N522xB, N523xB, N524xB (Write-Read) Sets and returns the ON/OFF state of allowing noise data to contribute to the uncertainty of a calibration performed using Dynamic Uncertainty for S-Parameters. Noise data must also be present for the ports at the time the calibration is performed.
Parameters
<bool>	Enable ON/OFF state. Choose from: ON or 1 - Noise uncertainty ON. OFF or 0 - Noise uncertainty OFF.
Examples	SYST:UNC:ETER:NOIS:ENAB ON
Query Syntax	SYSTem:UNCertainty:ETERm:NOISe:ENABle?
Return Type	Boolean
Default	ON

SYSTem:UNCertainty:ETERm:CABLe:REPeat[:ENABle] <bool>

Applicable Models: N522xB, N523xB, N524xB (Write-Read) Sets and returns the ON/OFF state of allowing cable repeatability data to contribute to the uncertainty of a calibration performed using Dynamic Uncertainty for S-Parameters. Repeatability data must also be present for the ports at the time the calibration is performed.
Parameters
<bool>	Enable ON/OFF state. Choose from: ON or 1 - Cable repeatability uncertainty ON. OFF or 0 - Cable repeatability uncertainty OFF.
Examples	SYST:UNC:ETER:CABL:REP ON
Query Syntax	SYSTem:UNCertainty:ETERm:CABLe:REPeat[:ENABle]?
Return Type	Boolean
Default	ON

SYSTem:UNCertainty:ETERm:SDEFinitions[:ENABle] <bool>

Applicable Models: N522xB, N523xB, N524xB (Write-Read) Sets and returns the ON/OFF state of allowing the uncertainty associated with the standard definitions in the cal kits to contribute to the uncertainty of a calibration performed using Dynamic Uncertainty for S-Parameters. The uncertainty data for the Cal standards must also be present at the time the calibration is performed.
Parameters
<bool>	Enable ON/OFF state. Choose from: ON or 1 - Standard definition uncertainty ON. OFF or 0 - Standard definition uncertainty OFF.
Examples	SYST:UNC:ETER:SDEF ON
Query Syntax	SYSTem:UNCertainty:ETERm:SDEFinitions[:ENABle]?
Return Type	Boolean
Default	ON