The commands in this subsystem relate to device‑specific parameters, not to signal‑oriented parameters.
:SENSe:RFON Subsystem
This subsystem contains commands.
[:SENSe]:RFON[:STATe] ON|OFF|1|0
Description
Sets the state of the RF output signal at the VNA ports to be either ON or OFF when the sweep is set to Hold. When set to ON, the RF signal continues to be energized when the sweep is in hold. When set to OFF, the RF signal is turned off during the hold condition. Note that the sweep may require more time to stabilize when it is set to run, if the RF had been turned OFF during hold.
Cmd Parameter
<boolean> ON|OFF|1|0
Query Response
<bNR1> 1|0
Default Value
ON
Front Panel Access
Shift‑3(Sweep), RF Pwr in Hold
:SENSe:APPLication Subsystem
This subsystem contains application specific commands.
[:SENSe]:APPLication:TST? NORMal|PWRon
Description
Executes an application self test and reports whether any errors were detected. A return value of “0” indicates that the test was completed without detecting any error.
Two self test types can be specified. If no test type is specified, then the test defaults to NORMal. The PWRon self test is a scaled‑down version of the normal self test that runs during the instrument power‑on cycle.
Syntax
:APPLication:TST? NORMal|PWRon
Cmd Parameter
NA (query only)
Query Parameter
<char> NORMal|PWRon
Query Response
<NR1> <integer>
Front Panel Access
NA
[:SENSe]:APPLication:TST:RESult?
Description
Returns the application self test result of the previous call to the application self test. The response begins with an ASCII header. The header specifies the number of following bytes. It appears in the format #AX<block data>, where A is the number of digits in X, and X is the number of bytes that follow the header. The first information of the <block data> contains the overall self test string ( “PASSED” or “FAILED” ) followed by a comma, and each self test result separated by a comma. Each subset of the result is included in angle brackets, < >.
Note that an application self test command must be called prior to calling this command in order for the result to be valid.
Cmd Parameter
NA (query only)
Query Response
<block> (No units, NA)
Front Panel Access
NA
:SENSe:AVERage Subsystem
This subsystem contains commands that are related to the combination of the data from consecutive sweeps. Use commands in this subsystem to control sweep‑to‑sweep averaging and max hold functionality.
[:SENSe]:AVERage:CLEar
Description
No query. Clears and restarts averaging of the measurement data. Note that sweep averaging count must be set to greater than 1 for averaging to restart.
Sets the number of traces to be averaged. Note that when averaging count is set to be greater than 1, sweep averaging is turned on. To stop averaging, set the averaging count to 1.
Cmd Parameter
<NR1> <integer>
Query Response
<NR1> <integer>
Default Value
1
Range
1 to 65535
Front Panel Access
Shift‑3(Sweep), Sweep Averaging
:SENSe:CALibration Subsystem
This subsystem controls the system calibration.
[:SENSe]:CALibration:STATe?
Description
Reports the calibrated state. This command returns a 0 if there is no valid calibration, otherwise it returns the bit of the S parameters that has a valid calibration. The bits are as follows:
S11 bit
0x01
S21 bit
0x04
For example, if a value of 5 is returned, then both of the S parameter bits are valid (since decimal 5 is equivalent to binary 0101).
Cmd Parameter
NA (query only)
Query Response
<NR1> <integer> (0 to 5)
Front Panel Access
NA
:SENSe:CORRection Subsystem
This subsystem provides commands for losses or gains external to the instrument.
Transfers the system error correction data from the instrument to the controller. <error term parameter> are string parameters that describe the different error terms.
<error term parameter>
Description
ERF
(Forward) Reflection tracking
EDF
(Forward) Directivity
ESF
(Forward) Source match
ETF
(Forward) Transmission tracking
ELF
(Forward) Load match
EXF
(Forward) Isolation
ETFS
(Forward Sensitivity) Transmission tracking
ELFS
(Forward Sensitivity) Load match
EXFS
(Forward Sensitivity) Isolation
The format of the block data that is returned can be specified by the command :FORMat:DATA. The response begins with an ASCII header that specifies the number of data bytes. It appears in the format #AX, where A is the number of digits in X, and X is the number of bytes that follow the header. Each data-point is separated by a comma delimiter. Each term contains one complex value (real and imaginary) for each sweep point.
Sets the Smith Chart reference impedance. Sets 50 for 50 ohm. Sets 75 for 75 ohm. The query form of the command returns the current Smith Chart reference impedance in ohms.
Turns the calibration error correction ON or OFF. Note that error correction can be turned ON only if valid calibration is available.
Parameter
OFF|ON
Cmd Parameter
<boolean> OFF|ON|0|1
Query Response
<bNR1> 0|1
Default Value
0
Front Panel Access
Shift‑2(Calibrate), Cal Correction
:SENSe:CORRection:CKIT Subsystem
This subsystem provides commands that modify and configure the device under test (DUT).
[:SENSe]:CORRection:CKIT:INFormation? <connector>
Description
Returns a string of information of the given calibration connector. <connector> defines the connector family. Valid connectors for calibration line type COAX are as follows:
Note that the connector must be for valid for the current calibration line type.
Note that user 1, 2, 3, or 4 is based on the current calibration method.
The response begins with an ASCII header. The header specifies the number of following bytes. It appears in the format #AX, where A is the number of digits in X, and X is the number of bytes that follow the header. Parameters are returned in comma‑delimited ASCII format. Each parameter is returned as “NAME=VALUE[UNITS].”
Cmd Parameter
NA (query only)
Query Parameter
<char> <connector>
Query Response
<block> (returns comma‑delimitted ASCII format)
Front Panel Access
NA
:SENSe:CORRection:CKIT:USER Subsystem
This subsystem contains commands to configure the user device under test (DUT).
Sets the DUT capacitance value for the specified user.
Cmd Parameter
<NRf> <capacitance> (e‑15, e‑27, e‑36, e‑45)
Query Response
<NR3> <capacitance> (e‑15, e‑27, e‑36, e‑45)
Example
To set the DUT capacitance #1 for User 1 with line type coax to 5:
:SENS:CORR:CKIT:USER:COAX:SOLT:C1 5
Front Panel Access
NA
[:SENSe]:CORRection:CKIT:USER[1]|2|3|4:COAX:SOLT: NAME <string> [:SENSe]:CORRection:CKIT:USER[1]|2|3|4:COAX:SOLT:NAME?
Description
Sets the DUT name for the specified user.
Cmd Parameter
<string> (no parameter data or units)
Query Response
<string> (no parameter data or units)
Example
To set the DUT name for User 1 with line type coax and calibration method SOLT:
:SENS:CORR:CKIT:USER:COAX:SOLT:NAME “SOLT1”
Front Panel Access
NA
[:SENSe]:CORRection:CKIT:USER[1]|2|3|4:COAX:SOLT: OPEN <length> [:SENSe]:CORRection:CKIT:USER[1]|2|3|4:COAX:SOLT:OPEN?
Description
Sets the DUT capacitance value for the specified user.
Cmd Parameter
<NRf> <length> (millimeters)
Query Response
<NR3> <length> (millimeters)
Example
To set the DUT open offset for User 1 with line type coax to 3 mm:
:SENS:CORR:CKIT:USER:COAX:SOLT:OPEN 3
Front Panel Access
NA
[:SENSe]:CORRection:CKIT:USER[1]|2|3|4:COAX:SOLT: SHORt <length> [:SENSe]:CORRection:CKIT:USER[1]|2|3|4:COAX:SOLT:SHORt?
Description
Sets the DUT capacitance value for the specified user.
Cmd Parameter
<NRf> <length> (millimeters)
Query Response
<NR3> <length> (millimeters)
Example
To set the DUT short offset for User 1 with line type coax to 3 mm:
:SENSe:CORRection:CKIT:USER:COAX:SOLT:SHORt 3
Front Panel Access
NA
:SENSe:CORRection:COLLect Subsystem
This subsystem controls the system calibration. To properly perform a calibration, several parameters must be set. The table below lists all of the required commands. First, use the :MEDium and :CONNector subcommands to specify the calibration line type and the DUT port setup. Then use the :METHod and :TYPE subcommands to specify the calibration method and the calibration type. Then use the :ACQUire subcommand to specify the calibration components to be measured. Finally, use the :SAVe subcommand to calculate, save, and finish the calibration. Note that the calibration components do not need to be measured in any specific order.
[:SENSe]:CORRection:COLLect:ABORt:ALL
Description
Aborts the calibration measurement and restarts the current sweep or measurement, or both.
Performs a measurement of the given steps. <cal steps> is the calibration step to be performed and must be one of the following values:
OPEN|SHORT|LOAD| THRU|ISOLation
<port_no> is the port number, 1. For calibration step OPEN, SHORT, and LOAD, valid port number is 1. For calibration step THRU and ISOLation, valid port number is 1 for Fwd.
Note that the calibration step must be valid for the given calibration type and calibration method. Refer to Table: SOLT Calibration Method for a list of valid calibration steps for each type and method.
The query version of this command returns a string that consists of the last calibration step measurement that was performed followed by the port number. The calibration step and port number are delimited by a comma. Note that if no calibration step has been processed, then this command returns the string “NONE, 0”.
Cmd Parameter
<char> <cal steps>, <port_no>
Query Parameter
<char> <cal steps>, <port_no>
Query Response
<string>
Front Panel Access
Shift‑2(Calibrate), Start Cal
Calibration Steps and Calibration Types
For each calibration Type, Table: SOLT Calibration Method lists the allowable calibration steps and port_no to be used in command [:SENSe]:CORRection:COLLect[:ACQUire] <cal steps>, <port_no>. The calibration steps are different for each calibration Method, and the port_no is different for each calibration Type. For example, for calibration Type RFP1 and calibration Method SOLT, the allowable <cal steps>, <port_no> settings are “OPEN,1”, “SHORT,1”, and “LOAD,1”. The steps that are not allowed are indicated by “—”.
This command requests information about the current calibration step or the specified calibration step. If no calibration step is specified, then it returns a 1 if the current calibration step has completed, otherwise it returns a 0. <cal steps> is the calibration step to be performed and must be one of the following values:
OPEN|SHORT|LOAD|THRU|ISOLation
<port_no> is port number 1. For step OPEN, SHORT, valid port number is 1. For calibration step THRU and ISOLation, valid port number is 1 for Fwd.
Sets the connector family for the given port number. <port_no> is port number 1. <connector> defines the connector family. Valid connector for calibration line type COAX is the following:
Calculates the calibration data according to the calibration method that is selected and the steps that are performed and then stores the result. This command is similar to the “calculate and finish” on the front panel of the list of calibration steps.
Cmd Parameter
NA
Query Response
NA (no query)
Front Panel Access
NA
[:SENSe]:CORRection:COLLect:STATus?
Description
This command requests information about the calibration status. The command returns 0 if none, 1 if calibration has already started, 2 if calibration has been aborted, 3 if a calibration is currently calculating, and 4 if a calibration has been completed.
Cmd Parameter
NA (query only)
Query Response
<char> [<cal steps>, <port_no>]
Front Panel Access
NA
[:SENSe]:CORRection:COLLect:STATus:ACCuracy?
Description
This command requests information about the calibration accuracy status. The command returns:
0 when no calibration is available (CAL off)
1 when the calibration accuracy is high (OK: Accuracy High)
2 when the accuracy is moderate due to a change in power level (?P: Accuracy Moderate)
3 when the accuracy is moderate due to a change in temperature level by more than 5 deg C (?T: Accuracy Moderate)
4 when the accuracy is low due to a change in temperature level by more than 10 deg C (X: Accuracy Low).
Sets the center frequency. Note that changing the value of the center frequency will change the value of the coupled parameters: Start Frequency and Stop Frequency. It may also change the value of the span.
Cmd Parameter
<NRf> <freq> (hertz)
Query Response
<NR3> <freq> (hertz)
Default Value
For 1.6 GHz Model: 800250000 Hz For 6 GHz Model: 3000250000 Hz
Default Unit
Hz
Range
For 1.6 GHz Model: 500 kHz to 1.6 GHz For 6 GHz Model: 500 kHz to 6 GHz
Sets the frequency span. Setting the value of <freq> to 0 Hz is the equivalent of setting the span mode to zero span. Note that changing the value of the frequency span will change the value of coupled parameters: Start Frequency and Stop Frequency, and may change the Center Frequency.
Cmd Parameter
<NRf> <freq> (hertz)
Query Response
<NR3> <freq> (hertz)
Default Value
For 1.6 GHz Model: 1599500000 Hz For 6 GHz Model: 5999500000 Hz
Default Units
Hz
Range
For 1.6 GHz Model: 0 Hz to 1.599500 GHz For 6 GHz Model: 0 Hz to 5.999500 GHz
Front Panel Access
Freq/Dist (or Freq), Span
[:SENSe]:FREQuency:DSPAn?
Description
This command returns the suggested frequency span based on the start and stop distance.
Syntax
:FREQuency:DSPAn?
Cmd Parameter
NA (query only)
Query Response
<NR3> <freq> (hertz)
Default Value
For 1.6 GHz Model: At preset, DSpan is 799750000 Hz For 6 GHz Model: At preset, DSan is 2999750000 Hz
Default Units
Hz
Range
For 1.6 GHz Model: 0 Hz to 799750000 Hz For 6 GHz Model: 0 Hz to 2.999750000 GHz
Sets the start frequency. Note that changing the value of the start frequency will also change the value of coupled parameters: Center Frequency and Span.
Syntax
:FREQuency:STARt <freq> :FREQuency:STARt?
Cmd Parameter
<NRf> <freq> (hertz)
Query Response
<NR3> <freq> (hertz)
Default Value
500000 Hz
Default Units
Hz
Range
For 1.6 GHz Model: 500 kHz to 1.6 GHz For 6 GHz Model: 500 kHz to 6 GHz
Example
Sets the start frequency to 10000 HZ:
:SENSe:FREQuency:STARt 10000
Sets the start frequency to 5 MHz:
:SENSe:FREQuency:STARt 5MHZ
Sets the start frequency to 1 GHz:
:SENS:FREQ:STAR 1GHZ
Front Panel Access
Freq/Dist (or Freq), Start Freq
[:SENSe]:FREQuency:STOP
Description
Sets the stop frequency. Note that changing the value of the stop frequency will change the value of coupled parameters: Center Frequency and Span.
Syntax
:FREQuency:STOP <freq> :FREQuency:STOP?
Cmd Parameter
<NRf> <freq> (hertz)
Query Response
<NR3> <freq> (hertz)
Default Value
For 1.6 GHz Model: 1600000000 Hz For 6 GHz Model: 6000000000 Hz
Default Units
Hz
Range
For 1.6 GHz Model: 500 kHz to 1.6 GHz For 6 GHz Model: 500 kHz to 6 GHz
Example
Sets the stop frequency to 10000 Hz:
:SENSe:FREQuency:STOP 10000
Sets the stop frequency to 5 MHz:
:SENSe:FREQuency:STOP 5MHZ
Sets the stop frequency to 1 GHz:
:SENS:FREQ:STOP 1GHZ
Front Panel Access
Freq/Dist (or Freq), Stop Freq
:SENSe<Tr>:FREQuency:DATA?
Description
Produces the frequency list in Hz for the given trace. <Tr> is the trace number in the range 1 to 8 (1 to 4 for Traces TR1 to TR4 and 5 to 8 for Memory M1 to M4). If no trace number is specified, then the <Tr> parameter defaults to trace number 1. The response begins with an ASCII header that specifies the number of data bytes. It appears in the format #AX, where A is the number of digits in X, and X is the number of bytes that follow the header. Each frequency point is in scientific notation and separated by a comma delimiter.
Cmd Parameter
NA (query only)
Query Response
<char> <freq> (returns block data in hertz)
Default Units
Hz
Related Command
:CALCulate<Tr>:TRANsform:DISTance:DATA?
Front Panel Access
NA
:SENSe:SWEep Subsystem
This subsystem includes commands that affect the sweep parameters of the instrument.
Sets the total number of measurement points per sweep. Note that a sweep with a lower number of data-points will complete in less time than a sweep with a higher number of data-points.
Sets the sweep type. The query version of this command returns “SING” if current sweep is set to single sweep, and returns “CONT” if set to continuous sweep. Note that setting the sweep type to SINGle sets the sweep to hold.
Cmd Parameter
<char> SINGle|CONTinuous
Query Response
<char> SING|CONT
Default Value
CONT
Front Panel Access
Shift‑3(Sweep), Sweep Type
:SENSe:TRACe Subsystem
This subsystem includes commands that provide general settings for each trace.
Defines the domain for the given trace <Tr>. <Tr> is the trace number in the range 1 to 4. If no trace number is specified, then the <Tr> parameter defaults to trace number 1. The query version of this command returns “FREQ” if domain is Frequency,and “DIST” if domain is distance.
Selects the given trace, <Tr>, as the active trace. <Tr> is the trace number in the range 1 to 4. If no trace number is specified, then the <Tr> parameter defaults to trace number 1. Note that this may also change the total number of traces. The query returns the current active trace number in the format TR#.
Defines the S‑parameter for the given trace, <Tr>.
<Tr> is the trace number in the range 1 to 4. If no trace number is specified, then the <Tr> parameter defaults to trace number 1. The query version of this command returns “S11” if the S‑parameter is set to S11, “S21” if set to S21.