SENSe:NOISe Commands

Controls the Noise Figure / NFX configuration and calibration.

SENSe:NOISe:

AVERage <num>

       | STATe <bool>

BWIDth <num>

CALibration:

       | METHod <string>

       | RMEThod <string>

CONTrol

       | HANDler

             | PIN

                  | FUNCtion

ENR

| FILename <string>

EXDC:NAME

GAIN <num>

       | CTCheck

IMPedance:COUNt <num>

NARRowband[:STATe] <bool>

PMAP <in>,<out>

       | INPut?

       | OUTPut?

PULL[:STATe] <bool>

RECeiver <char>

SNP? <string>

       | SAVE <string>

SOURce:

       | CKIT <string>

       | CONNector <string>

SWEep

| MACRo

| FILe

| RNPath

| RSPath

| SNPath

| SSPath

| STATe

       | TIMe?

TEMPerature

       | AMBient <num>

             | AUTO

       | SOURce

             | AUTO

             | [:VALue]

TUNer:

       | FILE:NAME <string>

       | FILE[:STATe]

       | ID  <string>

       | INPut <string>

       | ORIent[:STATe]

       | OUTPut <string>

USBSource:

| CATalog?

| ENR

| SAVE

| [:SELect]

| TEMPerature?

 

Click on a keyword to view the command details.

Other Noise Figure SCPI commands

The calibration commands listed in this topic are supplemental to the Guided Cal commands.

See Also

SENSe<ch>:NOISe:AVERage[:COUNt] <num>

Applicable Models: All with with Noise Figure Option (S9x029A/B, 028, 029)

(Read-Write) Set and read the averaging factor for the noise receiver. Learn more

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<num>

Averaging value. Choose any number from 1 to 16000.

Examples

SENS:NOIS:AVER 20

sense:noise:average:count 10

Query Syntax

SENSe:NOISe:AVERage[:COUNt]?

Return Type

Numeric

Default

1

SENSe<ch>:NOISe:AVERage:STATe <bool>

Applicable Models: VNAs with Noise Figure Option (S9x029A/B, 028, 029)

(Read-Write) Turns noise averaging ON and OFF.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<bool>

Averaging state. Choose from

0 - Noise averaging OFF

1 - Noise averaging ON

Examples

SENS:NOIS:AVER:STAT 0

sense:noise:average:state 1

Query Syntax

SENSe:NOISe:AVERage:STATe?

Return Type

Boolean

Default

O - OFF

SENSe<ch>:NOISe:BWIDth[:RESolution] <num>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read-Write) Set and read the bandwidth of the noise receiver. Learn more

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<num>

Bandwidth value. Choose from:

For Sens:Noise:Receiver = NOISe (Opt 029) choose from: 800 KHz, 2 MHz, 4 MHz, 8 MHz, or 24 MHz or the numerical equivalent, such as 8e6 and so forth.

For Sens:Noise:Receiver = NORMal (Opt 028) choose from: 720 kHz or 1.2 MHz

If the value does not match one of these, it is rounded up to the next valid bandwidth value.

Examples

SENS:NOIS:BWID 2e6

sense:noise:bwidth:resolution 8mhz

Query Syntax

SENSe:NOISe:BWIDth[:RESolution]?

Return Type

Numeric

Default

4 MHz for Noise Receiver

1.2 MHz for Normal Receiver

SENSe<ch>:NOISe:CALibration:METHod <string>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read-Write) Set and read the method for performing a calibration on a noise channel.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<string>

Calibration method. NOT case-sensitive. Choose from:

  • "VectorFull" or "Vector"

  • "SParameter" (Not available for NFX measurements)

  • "ScalarFull" or "Scalar"

Examples

SENS:NOIS:CAL:METH "Vector"

sense:noise:calibration:method "SParameter"

Query Syntax

SENSe:NOISe:CALibration:METHod?

Return Type

String

Default

"VectorFull"

SENSe<ch>:NOISe:CALibration:RMEThod <string>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read-Write) Set and read the method used to characterize the noise receivers. Learn more.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<string>

Receiver characterization method. NOT case-sensitive. Choose from:

  • "NoiseSource” - Use a noise source. This selection is NOT allowed when a standard VNA receiver is used as the noise receiver (SENS:NOIS:REC NORM).

  • “PowerMeter” - Use a power meter. NOTE:  This selection is NOT allowed when the Noise Bandwidth is 8 MHz or 24 MHz.

Examples

SENS:NOIS:CAL:RMET "PowerMeter"

sense:noise:calibration:rmethod "noisesource"

Query Syntax

SENSe:NOISe:CALibration:RMEThod?

Return Type

String

Default

"NoiseSource"

SENSe<ch>:NOISe:CONTrol:HANDler:PIN<xy>:FUNCtion <func>

Applicable Models: PNA and PNA-X only with Noise Figure Option (S9x029A/B, 028, 029)

(Read-Write) Set and Read the function for the specified port in Material Handler I/O interface.  Only Port C may be used for this functionality (Pins 22, 23, 24, 25).

Note:

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<xy>

Pin number.

<func>

One of six functions. Choose from:

Function name

Description

Assignable
Pin Number

"LOW"

Sets the pin low.

22-25

"HIGH"

Sets the pin high.

22-25

"NF_SOURCE"

Noise Figure source switch control for input port. This function sets the pin low for S-parameter measurements and high for NF measurements.

22-25

"NF_SOURCE_INVERTED"

Noise Figure source switch control for input port. This function sets the pin high for S-parameter measurements and low for NF measurements.

22-25

"NF_RECEIVER"

Noise Figure receiver switch control for output port. This function sets the pin low for S-parameter measurements and high for NF measurements.

22-25

"NF_RECEIVER_INVERTED"

Noise Figure receiver switch control for output port. This function sets the pin high for S-parameter measurements and low for NF measurements.

22-25

 

Examples

SENSe:NOISe:CONTrol:HANDler:PIN23:FUNCtion "NF_RECEIVER"

sens:nois:cont:hand:pin22:func?

Query Syntax

SENSe<ch>:NOISe:CONTrol:HANDler:PIN<xy>:FUNCtion?

Return Type

String

Default

"LOW"

SENSe<ch>:NOISe:ENR:FILename <string>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read-Write) Set and read the path and name of the ENR file associated with the noise source.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<string>

Full path, filename, and extension of the ENR file.

Examples

SENS:NOIS:ENR:FIL "c:\Program Files(x86)\Keysight\Network Analyzer\Documents\ENR\346C.enr"

sense:noise:enr:filename "c:\Program Files(x86)\Keysight\Network Analyzer\Documents\ENR\346C.enr"

Query Syntax

SENSe:NOISe:ENR:FILename?

Return Type

String

Default

Not applicable

SENSe<ch>:NOISe:ENR <INTernal | FILE >

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read-Write) Specifies whether to use the ENR file stored internally on the USB sensor or to use specified .enr file (located on the VNA).

Note:  1) If FILE is used, the .enr file should be specified using SENSe<ch>:NOISe:ENR:FILename <string>  2) If INT is used, then "SENSe:NOISe:ENR:FILename?” returns “Internal”

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<INTernal | FILE>

Choose from:

INTernal = use internal file on the USB

FILE = use separate .enr file.

Examples

SENS:NOIS:ENR INT

sense:noise:enr file

Query Syntax

SENSe:NOISe:ENR?

Return Type

Characters

Default

Not applicable

SENSe<ch>:NOISe:EXDC:NAME <string>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029), except PNA and PNA-X

(Read-Write) Set and read the external DC source name in order to control the noise source.

Parameters

 

<ch>

Noise Figure channel number but this number is ignored for this command.

<string>

DC source name. The DC source should be defined in the external device dialog in advance.

Examples

Add DC-biased Noise Source named "NoiseSource1". Open NF channel before sending following commands.

SYSTem:CONFigure:EDEVice:ADD "NoiseSource1"

SYSTem:CONFigure:EDEVice:DTYPE "NoiseSource1","DC Source"

SYSTem:CONFigure:EDEVice:DRIVer "NoiseSource1", "DC Source"

SYSTem:CONFigure:EDEVice:IOConfig "NoiseSource1", "GPIB0::23::INSTR"

SYSTem:CONFigure:EDEVice:LOAD "NoiseSourceSettings.xml", "NoiseSource1"

SENSe:NOISe:EXDC:NAME "NoiseSource1"

NOTE: NoiseSourceSettings.xml has setting information about waiting time and SCPI commands to DC Source. Create this xml file before sending SCPI commands.

Query Syntax

SENSe:NOISe:EXDC:NAME?

Return Type

String

Default

""

SENSe<ch>:NOISe:GAIN <num>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read-Write) Set and read the amount of gain for the noise receiver. This setting is NOT used when Sens:Noise:Receiver = NORMal (Opt 028)

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<num>

Gain value. Choose from:

  • 0 - Low gain;select if the gain of your DUT is relatively high (>35 dB).

  • 15 - Medium gain; select if the gain of your DUT is about average (20 dB to 45 dB)

  • 30 - High gain;.select if the gain of your DUT is relatively low (<30 dB).

Learn more about Noise Receiver Gain setting.

If the value does not match one of these, it is rounded up to the next legal value.

Examples

SENS:NOIS:GAIN 15

sense:noise:gain 0

Query Syntax

SENSe:NOISe:GAIN?

Return Type

Numeric

Default

30

SENSe<ch>:NOISe:GAIN:CTCheck <bool>

Applicable Models: N524xA/B with Noise Figure Option (S9x029A/B)

(Read-Write) Turns ON and OFF the check for noise receiver compression.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<bool>

Threshold checking state. Choose from

0 - Noise threshold checking OFF

1 - Noise threshold checking ON

Examples

SENS:NOIS:GAIN:CTC 0

sense:noise:gain:ctcheck 1

Query Syntax

SENSe:NOISe:GAIN:CTCheck?

Return Type

Boolean

Default

O - OFF

SENSe<ch>:NOISe:IMPedance:COUNt <num>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read-Write) Sets the number of impedance states to use during calibrated measurements.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<num>

Number of impedance states to use. Choose between 4 and the maximum number allowed by the noise tuner device. The more states that are used, the more accurate, and slower, the measurement.  If the specified number exceeds the capability of the device, the measurement will use the maximum number of states the device allows.  

Examples

SENS:NOIS:IMP:COUN 5

sense:noise:impedance:count 7

Query Syntax

SENSe:NOISe:IMPedance:COUNt?

Return Type

Numeric

Default

4

SENSe<ch>:NOISe:NARRowband[:STATe] <bool>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)  (Excepts M9485A, M980xA, P50xxA)

(Read-Write) Turns narrowband noise figure compensation ON and OFF

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<bool>

Compensation state. Choose from

0 or OFF - Narrowband noise compensation OFF

1 or ON - Narrowband noise compensation ON

Examples

SENS:NOIS:NARR 0

sense:noise:narrowband:state 1

Query Syntax

SENSe:NOISe:NARRowband[:STATe]?

Return Type

Boolean

Default

O - OFF

SENSe<ch>:NOISe:PMAP <in>,<out>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Write-only) Set the DUT-to-VNA port mapping for Noise Figure. Port mapping is allowed without restriction when the standard PNA receiver is used (SENSe:NOISe:RECeiver is set to NORMal). When the low-noise receiver is selected (SENSe:NOISe:RECeiver is set to NOISe) the following restrictions apply:

  • If the low-noise receiver is selected, the DUT output port must be port 2.

  • On high-frequency PNAs that have an internal tuner on port 1, the input port must be port 1 if the internal tuner is selected as the noise tuner. Conversely, if the input port is something other than 1, the internal tuner cannot be selected.

  • For PNAs that have a maximum frequency of 26.5 GHz or less, any port can be selected as the DUT input port.

  • If a vector calibration is desired, the tuner must be connected to the selected input port.

Use the SENSe:NOISe:PMAP:INPut? and SENSe:NOISe:PMAP:OUTPut? commands to read the DUT input and output ports.

Parameters

 

<ch>

Any existing NF or NFX channel. If unspecified, value is set to 1.

<in>

VNA port which is connected to the DUT input.

<out>

VNA port which is connected to the DUT output.

Examples

SENS:NOIS:PMAP 1,2

sense:noise:pmap 2,1

See example program

Query Syntax

Not Applicable

Default

1,2

SENSe<ch>:NOISe:PMAP:INPut?

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read-only) Read the VNA port number to be connected to the DUT Input.

Use SENS:NOISe:PMap to set the port mapping.

Parameters

 

<ch>

Any existing NF or NFX channel. If unspecified, value is set to 1.

Examples

SENS:NOIS:PMAP:INP?

sense:noise:pmap:input?

Return Type

Numeric

Default

1

SENSe<ch>:NOISe:PMAP:OUTPut?

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read-only) Read the VNA port number to be connected to the DUT Output.

Parameters

 

<ch>

Any existing NF or NFX channel. If unspecified, value is set to 1.

Examples

SENS:NOIS:PMAP:OUTP?

sense:noise:pmap:output?

Return Type

Numeric

Default

2

SENSe<ch>:NOISe:PULL[:STATe] <bool>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read-Write) Enables and disables the use of source pull technique to compute S22. Learn more.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<bool>

Source pull technique state. Choose from:

OFF or 0 - Disable use of source pull technique.

ON or 1 - Enable use of source pull technique.

Examples

SENS:NOIS:PULL 0

sense2:noise:pull:state ON

Query Syntax

SENSe:NOISe:PULL[:STATe]?

Return Type

Boolean

Default

0 - OFF

SENSe<ch>:NOISe:RECeiver <char>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029) (Excepts M9485A, M98xxA, P50xxA/B, E5080B, E5081A)

(Read-Write) Sets and returns the noise receiver to use for noise measurements.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<char>

Noise receiver. Choose from:

NORMal The standard VNA receiver. (Opt 028 and Opt 029)

NOISe  The low-noise receivers. (Opt 029 only)

Examples

SENS:NOIS:REC NORM

sense2:noise:receiver noise

Query Syntax

SENSe:NOISe:RECeiver?

Return Type

Character

Default

NOISe

SENSe<ch>:NOISe:SNP? [string]

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029) (Except M9485A)

(Read-Only) Returns S-parameter and noise parameter data for vector noise figure measurements.

Noise parameters are NOT valid for NFX or Scalar noise figure measurements. Learn more about noise parameters.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

[string]

Optional parameter. Choose "NoiseParameter" - Noise parameter data.

If unspecified, only S-parameter data is saved.

Examples

SENS:NOIS:SNP?

sense2:noise:snp? "NoiseParameter"

Return Type

Comma-separated values

Data is returned in this order:

1. <all frequencies | point number>

2. <real S11> <imag S11> <real S21> <imag S21> <real S12> <imag S12> <real S22> <imag S22>

Then if noise parameters are specified:

3. <NFMin dB> <mag GammaOpt> <phase GammaOpt> <Rn/Z0>

The data display format depends on MMEM:STOR:TRAC:FORM:SNP

Default

Not Applicable

SENSe<ch>:NOISe:SNP:SAVE <filename>, [data]

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Write-only) Saves the S-parameters and vector noise parameters to an S2P file. For NFX channels, mixer setup information is included as comments at the beginning of the file.

Learn more about noise parameters.  

The format of the snp data is set with MMEM:STOR:TRAC:FORM:SNP.  

The following is sample data for two data points from a Noise Figure measurement:

 

! Keysight Technologies,N5242A,USxxxxxxx,A.09.85

! pnan-nn Thu Nov 01 12:26:27 2012

# HZ S MA R 50

!freq (Hz)   S11M            S11A           S21M         S21A           S12M          S12A         S22M           S22A

2000000000 9.038147e-001 6.241193e+001 5.855965e+000 -6.116778e+001 2.232653e-002 -1.475392e+002 5.275644e-001 1.750775e+002

8000000000 6.951366e-001 -1.458202e+002 5.307699e+000 -7.055212e+001 7.838612e-002 -1.460951e+002 3.986142e-001 -2.226317e+001

! Noise Parameters

!freq (Hz)   NFMin(dB)      Rho_opt(Mag)      Rho_opt(deg)      Rn/Z0

2000000000 1.251697e+000 2.172018e-001 -8.765875e+001 1.806663e-001

8000000000 1.583849e+000 2.015185e-001 1.029875e+002 1.320403e-001

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<filename>

Path (optional), filename and suffix of location to store SNP data. If path is not specified, the current path is used.

[data]

String. Optional parameter. Choose "NoiseParameter" - Noise parameter data.

If unspecified, only S-parameter data is saved.

Examples

SENS:NOIS:SNP:SAVE "MySparams.s2p"

sense2:noise:snp:save "C:\Program Files(x86)\Keysight\Network Analyzer\Documents\MyNoiseParams.s2p", "NoiseParameter"

Query Syntax

Not Applicable

Default

Not Applicable

SENSe<ch>:NOISe:SOURce:CKIT <string>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read-Write) Set and read the Cal Kit that will be used for the Noise Source adapter.

An adapter is always necessary to connect a 346C Noise Source to the VNA port 2. Select a Cal Kit that is the same type and gender as the noise source connector.

If the Noise Source mates directly to VNA port 2, then set this type to "None".

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<string>

Cal Kit. Case sensitive.

To read possible cal kit strings for the adapter:

Examples

SENS:NOIS:SOUR:CKIT "N4691-60004 ECal"

sense:noise:source:ckit "

Query Syntax

SENSe:NOISe:SOURce:CKIT?

Return Type

String

Default

Not applicable

SENSe<ch>:NOISe:SOURce:CONNector <string>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read-Write) Set and read the Noise Source connector type and gender. The Keysight 346C has an "APC 3.5 male" connector.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<string>

Noise source connector type and gender. Case sensitive.

Use SENS:CORR:COLL:GUID:CONN:CAT? to read possible connector strings.

Examples

SENS:NOIS:SOUR:CONN "APC 3.5 male"

sense:noise:source:connector "APC 3.5 female"

Query Syntax

SENSe:NOISe:SOURce:CONNector?

Return Type

String

Default

Not applicable

SENSe<ch>:NOISe:SWEep:MACRo:FILE:RNPath <string1>,<string2>

Applicable Models: All with Noise Figure Option (S9x029A/B, Licensed Feature)

(Read-Write) Sets the macro and arguments to be called for each receiver-side noise path type sweep.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<string1>

Full path to the macro.exe.

<string2>

Arguments

Examples

SENS:NOIS:SWE:MACR:FILE:RNP "C:\path\to\mymacro.exe”,"argument"

sense:noise:sweep:macro:file:rnpath "C:\path\to\mymacro.exe”,"argument"

Query Syntax

SENSe:NOISe:SWEep:MACRo:FILe:RNPath?

Return Type

string

Default

Not Applicable

SENSe<ch>:NOISe:SWEep:MACRo:FILE:RSPath <string1>,<string2>

Applicable Models: All with Noise Figure Option (S9x029A/B, Licensed Feature)

(Read-Write) Sets the macro and arguments to be called for each receiver-side S-paramenter type sweep.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<string1>

Full path to the macro.exe.

<string2>

Arguments

Examples

SENS:NOIS:SWE:MACR:FILE:RSP "C:\path\to\mymacro.exe”,"argument"

sense:noise:sweep:macro:file:rspath "C:\path\to\mymacro.exe”,"argument"

Query Syntax

SENSe:NOISe:SWEep:MACRo:FILe:RSPath?

Return Type

string

Default

Not Applicable

SENSe<ch>:NOISe:SWEep:MACRo:FILE:SNPath <string1>,<string2>

Applicable Models: All with Noise Figure Option (S9x029A/B, Licensed Feature)

(Read-Write) Sets the macro and arguments to be called for each source-side noise path type sweep.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<string1>

Full path to the macro.exe.

<string2>

Arguments

Examples

SENS:NOIS:SWE:MACR:FILE:SNP "C:\path\to\mymacro.exe”,"argument"

sense:noise:sweep:macro:file:snpath "C:\path\to\mymacro.exe”,"argument"

Query Syntax

SENSe:NOISe:SWEep:MACRo:FILe:SNPath?

Return Type

string

Default

Not Applicable

SENSe<ch>:NOISe:SWEep:MACRo:FILE:SSPath <string1>,<string2>

Applicable Models:  All with Noise Figure Option (S9x029A/B, Licensed Feature)

(Read-Write) Sets the macro and arguments to be called for each source-side S-parameter path type sweep.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<string1>

Full path to the macro.exe.

<string2>

Arguments

Examples

SENS:NOIS:SWE:MACR:FILE:SSP "C:\path\to\mymacro.exe”,"argument"

sense:noise:sweep:macro:file:sspath "C:\path\to\mymacro.exe”,"argument"

Query Syntax

SENSe:NOISe:SWEep:MACRo:FILE:SSPath?

Return Type

string

Default

Not Applicable

SENSe<ch>:NOISe:SWEep:MACRo:STATe <bool>

Applicable Models:  All with Noise Figure Option (S9x029A/B, Licensed Feature)

(Read-Write) Enables or disables the use of macros during noise figure sweep.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<bool>

Choose from

0 or OFF - Disable the macro feature

1 or ON - Enable the macro feature

Examples

SENS:NOIS:SWE:MACR:STAT ON

sense:noise:sweep:macro:state 1

Query Syntax

SENSe:NOISe:SWEep:MACRo:STATe?

Return Type

Boolean

Default

0 -OFF

SENSe<ch>:NOISe:SWEep:TIMe?

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read-only) Returns the APPROXIMATE time the channel will take to make one noise receiver sweep given the current setup. This, along with the sweep time for a  standard receiver measurement and the following calculations, can tell you how long a “single” sweep would take so that you can set an appropriate "timeout" in your program.

To calculate the total sweep time:

Noise Figure on amplifiers (Vector Correction ON):

  • 2*SSwpTime + X*NoiseReceiverSweepTime

  • Where X = the number of noise receiver impedance state sweeps. (Default is 4).

Noise Figure on converters (NFX) correction on - increased number of sweeps due to extra mixer sweeps and source pulling:

  • 4*SSwpTime + X*NoiseReceiverSweepTime (without source pulling)

  • 8*SSwpTime + X*NoiseReceiverSweepTime (with source pulling)

  • Where X = the number of noise receiver impedance state sweeps. (Default is 4).

Note: The number of sweeps to perform a noise measurement is annotated at the bottom of the Noise Figure screen.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

Examples

SENS:NOIS:SWE:TIM?

sense:noise:sweep:time?

Return Type

Double

Default

Not applicable

SENSe<ch>:NOISe:TEMPerature:AMBient <num>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read-Write) Sets the temperature at which the current noise measurement is occurring. Learn more

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<num>

Ambient temperature in Kelvin.

Examples

SENS:NOIS:TEMP:AMB 292

sense:noise:temperature 289

Query Syntax

SENSe:NOISe:TEMPerature:AMBient?

Return Type

Numeric

Default

295

SENSe<ch>:NOISe:TEMPerature:AMBient:AUTO  <bool>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read-Write) If ON, will use 302K as the ambient temperature when vector correction is applied and the tuner is an ECal or internal tuner. If OFF, will use the specified ambient temperature.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<bool>

Choose from:

OFF or 0 - Use the specified ambient temperature.

ON or 1 - Use 302K as the ambient temperature when vector correction is applied and the tuner is an ECal or internal tuner.

Examples

SENS:NOIS:TEMP:AMB:AUTO 0

sense2:noise:temperature:ambient:auto on

Query Syntax

SENSe:NOISe:TEMPerature:AMBient:AUTO?

Return Type

Boolean

Default

1 - ON

SENSe<ch>:NOISe:TEMPerature:SOURce:AUTO  <bool>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read-Write) If ON, will use 302K as the source temperature when vector correction is applied and the tuner is an ECal or internal tuner. If OFF, will use the specified source temperature.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<bool>

Choose from:

OFF or 0 - Use the specified source temperature.

ON or 1 - Use 302K as the source temperature when vector correction is applied and the tuner is an ECal or internal tuner.

Examples

SENS:NOIS:TEMP:SOUR:AUTO 0

sense2:noise:temperature:source:auto on

Query Syntax

SENSe:NOISe:TEMPerature:SOURce:AUTO?

Return Type

Boolean

Default

1 - ON

SENSe<ch>:NOISe:TEMPerature:SOURce[:VALue] <num>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read-Write) Sets the temperature at which the current noise measurement is occurring. Learn more

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<num>

Source temperature in Kelvin.

Examples

SENS:NOIS:TEMP:SOUR 292

sense:noise:temperature:source 289

Query Syntax

SENSe:NOISe:TEMPerature:SOURce[:VALue]?

Return Type

Numeric

Default

297

SENSe<ch>:NOISe:TUNer:FILE:NAME <string>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029) (Except M9485A)

(Read-Write) Set and read a custom noise tuner file to be used instead of the one generated automatically based on the state. This is considered an "expert user" feature and is therefore the responsibility of the user to provide a calibration file that yields proper results. Specify the full path of the file. If the full path is not specified, the noise tuner file must be stored in the C:\Users\Public\Documents\Network Analyzer directory. To enable the custom noise tuner file, the SENSe:NOISe:TUNer:FILE:STATE must be set to ON.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<string>

Noise tuner file name.

Examples

SENS:NOIS:TUN:FILE:NAME "MyNoiseFile.tm"

sense:noise:tuner:file:name "MyNoiseFile.tm"

Query Syntax

SENSe:NOISe:TUNer:FILE:NAME?

Return Type

String

Default

Not applicable

SENSe<ch>:NOISe:TUNer:FILE[:STATe] <bool>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029) (Except M9485A)

(Read-Write) Sets the state of the custom noise tuner file specified using the SENSe:NOISe:TUNer:FILE:NAME command.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<bool>

Custom noise tuner file state. Choose from:

OFF or 0 - Disable custom noise tuner file

ON or 1 - Enable custom noise tuner file

Examples

SENS:NOIS:TUN:FILE 1

sense2:noise:tuner:file:state ON

Query Syntax

SENSe:NOISe:TUNer:FILE[:STATe]?

Return Type

Boolean

Default

0 - OFF

SENSe<ch>:NOISe:TUNer:ID <string>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029) (Except M9485A)

(Read-Write) Set and read the identity of the noise tuner. This is an ECal model and serial number string. To read the identities of the connected ECal modules,  use SENSe:CORRection:CKIT:ECAL:LIST? and SENSe:CORRection:CKIT:ECAL<mod>:INFormation?

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<string>

ECal model and serial number string. The ECal module must be connected when this command is sent.

Examples

SENS:NOIS:TUN:ID "N4691-60004 ECal 02822"

sense:noise:tuner:id ""N4691-60004 ECal 02822"

Query Syntax

SENSe:NOISe:TUNer:ID?

Return Type

String

Default

Not applicable

SENSe<ch>:NOISe:TUNer:INPut <string>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029) (Except M9485A)

(Read-Write) Sets and reads the port of the ECal noise tuner that is connected to the VNA SOURCE OUT.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<string>

ECal port identifier. Case sensitive.

Examples

SENS:NOIS:TUN:INP "B"

sense:noise:tuner:input "A"

Query Syntax

SENSe:NOISe:TUNer:INPut?

Return Type

String

Default

"B"

SENSe<ch>:NOISe:TUNer:ORIent[:STATe] <bool>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029) (Except M9485A)

(Read-Write) Sets the state of auto orientation for a noise tuner during Noise Figure for NFX.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<bool>

Auto-orientation state. Choose from:

OFF or 0 - Disable Auto-orientation

ON or 1 - Enable Auto-orientation

Examples

SENS:NOIS:TUN:ORI 0

sense2:noise:tuner:orient:state ON

Query Syntax

SENSe:NOISe:TUNer:ORIent[:STATe]?

Return Type

Boolean

Default

1 - ON

SENSe<ch>:NOISe:TUNer:OUTPut <string>

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029) (Except M9485A)

(Read-Write) Sets and reads the port of the ECal noise tuner that is connected to the CPLR THRU.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

<string>

ECal port identifier. Case sensitive.

Examples

SENS:NOIS:TUN:OUTP "B"

sense:noise:tuner:output "A"

Query Syntax

SENSe:NOISe:TUNer:OUTput?

Return Type

String

Default

"A"

SENSe<ch>:NOISe:USBSource:CATalog?  

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read only) Returns a comma separated list of connected USB Noise Sources, identified by their usbNsSrcID:  “ModelNumber Serialnumber.”

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

Examples

SENS:NOIS:USBS:CAT?

sense:noise:usbsource:catalog?

Return Type

String

Default

Not applicable

SENSe<ch>:NOISe:USBSource:ENR:SAVE " usbNsSrcID ","filename"

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Write only) This writes the ENR file stored in USB Noise Sensor to the filename specified by “filename”

Notee:  When a full path is not given, the .enr file will be written to the default folder.  Change the default folder name using MMemory:CDIRectory.

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

Examples

SENS:NOIS:ENR:SAVE “U1831C MY12345678”,”C:\myUSBSensor.enr”

sense:noise:enr:save “U1231C MY12345678”, “my.enr”

Query Syntax

None

Default

Not applicable

SENSe<ch>:NOISe:USBSource[:SELect] “usbNsSrcID”

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read-Write) Sets and queries the USB noise source to use for calibration, identified by their usbNsSrcID:  “ModelNumber Serialnumber.”

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

Examples

SENS:NOIS:USBS:SEL “U1831C MY12345678”

sense:noise:usbsource:select “U1831C MY12345678”

Query Syntax

SENSe:NOISe:USBSource?

Return Type

String

Default

Not applicable

SENSe<ch>:NOISe:USBSource:TEMPerature? "usbNsSrcID"

Applicable Models: All with Noise Figure Option (S9x029A/B, 028, 029)

(Read only) Returns sensor reported temperature in Kelvin as reported by the USB noise Source.

Note: This can be used to help determine what temperature to use for the noise source temperature during calibration.  Learn more about ConfigureNSDiag.

The commands to set the noise source connector temperature for calibration remotely are: 

Smart Cal: SENSe<cnum>:CORRection:TCOLd:USER:VALue<num>

Cal All: SYSTem:CALibrate:ALL[1-250]:MCLass:PROPerty:VALue[:STATe] “Noise Source Temperature”,<value>

Parameters

 

<ch>

Noise Figure channel number. If unspecified, value is set to 1.

Examples

SENS:NOIS:USBS:TEMP? “U1831C MY12345678”

sense:noise:usbsource:select “U1831C MY12345678”

Return Type

Numeric

Default

Not applicable