Sense:IMD Commands

SENSe:IMD:

SWEep:TYPE

CSO:

       | NDPRoducts

       | NORMalized:POWer

       | OFFSet

CTB

       | NCARriers

       | NORMalized:POWer

       | OFFSet

FREQuency

       | DFRequency

             | [:CW]

             | STARt

             | STOP

       | F1[:CW]

       | F2[:CW]

       | FCENter

             | [:CW]

             | STARt

             | STOP

             | CENTer

             | SPAN

HOPRoduct?

HOPRoduct

       | ACTive?

IFBWidth

       | MAIN

       | IMTone

NORMalized

       | MODE

PMAP

       | INPut

       | OUTPut

SORDer

       | ACTive?

TPOWer

       | COUPle[:STATe]

       | EQUalize:STATe

       | F1

       | F2

       | F1:START

       | F1:STOP

       | F2:START

       | F2:STOP

       | LEVel

       | SET

(Read-Write) Sets and returns the sweep type for the IMD measurement.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<char>

Sweep type. Choose from:

• FCENter - (Center Frequency) Maintaining a constant tone spacing (DeltaF) and tone powers (P1 and P2), the center frequency (FC) is swept from Start to Stop.

• DFRequency - (Delta Frequency) The center frequency (FC) is held constant. The tone spacing is increased from StartDeltaF to StopDeltaF.

• POWer - The main tone frequencies are specified as either F1 and F2, or as FC and DeltaF. These frequencies are held constant while the power of each tone is stepped from the Start Power to the Stop Power.

• CW - The main tone frequencies (F1 and F2) and power levels (P1 and P2) are held constant. Measurements are taken for the specified Number of Points.

• SEGMent - Not available for IMDx. Same as FCenter sweep, except that the center frequencies for the sweep are constructed using the standard segment sweep commands.

• LOPower - All frequencies are fixed while the LO power is swept from Start to Stop power.

For each sweep type, use the commands that follow:

FCENTer:

• SENS:IMD:FREQ:FCEN:STAR

• SENS:IMD:FREQ:FCEN:STOP

• SENS:IMD:FREQ:FCEN:CENT

• SENS:IMD:FREQ:FCEN:SPAN

• SENS:IMD:FREQ:DFR:[CW]

• SENS:IMD:TPOW:F1

• SENS:IMD:TPOW:F2

DFRequency

• SENS:IMD:FREQ:DFR:STAR

• SENS:IMD:FREQ:DFR:STOP

• SENS:IMD:FREQ:FCEN:[CW]

• SENS:IMD:TPOW:F1

• SENS:IMD:TPOW:F2

POWer

• SENS:IMD:FREQ:F1:[CW]

• SENS:IMD:FREQ:F2:[CW]

• SENS:IMD:FREQ:FCEN:[CW]

• SENS:IMD:FREQ:DFR:[CW]

• SENS:IMD:TPOW:F1:STAR

• SENS:IMD:TPOW:F1:STOP

• SENS:IMD:TPOW:F2:STAR

• SENS:IMD:TPOW:F2:STOP

CW

• SENS:IMD:FREQ:F1:[CW]

• SENS:IMD:FREQ:F2:[CW]

• SENS:IMD:FREQ:FCEN:[CW]

• SENS:IMD:FREQ:DFR:[CW]

• SENS:IMD:TPOW:F1

• SENS:IMD:TPOW:F2

SEGMent - Not available for IMDx.

• SENS:IMD:FREQ:DFR:[CW]

• SENS:IMD:TPOW:F1

• SENS:IMD:TPOW:F2

• Use the standard segment sweep commands to set freq start and stop

LOPower - IMDx ONLY

• SENS:MIX:LO:POW:STAR

• SENS:MIX:LO:POW:STOP

• SENS:IMD:FREQ:F1:[CW]

• SENS:IMD:FREQ:F2:[CW]

• SENS:IMD:FREQ:FCEN:[CW]

• SENS:IMD:FREQ:DFR:[CW]

• SENS:IMD:TPOW:F1

• SENS:IMD:TPOW:F2

Examples

SENS:IMD:SWEep:TYPE CW

sense2:imd:sweep:type power

Query Syntax

SENSe<cnum>:IMD:SWEep:TYPE?

Return Type

Character

Default

FCENTer

(Read-Write) Sets and returns the “N = number of distortion products” value for the calculation of the CSO parameter. Learn more.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Number of distortion products.

Examples

SENS:IMD:CSO:NDPR 30

sense2:imd:cso:ndproducts 7

Query Syntax

SENSe<cnum>:IMD:CSO:NDPRoducts?

Return Type

Numeric

Default

40

(Read-Write) Sets and returns the CSO Power for POWER normalization mode. Valid only with measurement parameters: CSO2Lo and CSO2Hi and for Normalization Modes dBm and dBmV.  Learn more.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Power level. The units are determined by Sens:IMD:Norm:Mode, which must be set first.

Examples

SENS:IMD:CSO:NORM:POW 0

sense2:imd:cso:normalized:power -5

Query Syntax

SENSe<cnum>:IMD:CSO:NORMalized:POWer?

Return Type

Numeric

Default

0

(Read-Write) Sets and returns the offset that is applied to CSO measurements. Valid only with measurement parameters: CSO2Lo and CSO2Hi.  Learn more.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Offset value in dBm

Examples

SENS:IMD:CSO:OFFS 3

sense2:imd:cso:offset 7

Query Syntax

SENSe<cnum>:IMD:CSO:OFFSet?

Return Type

Numeric

Default

0

(Read-Write) Sets and returns the  “N = Total number of carriers” value used in the calculation of the XMOD parameter. Learn more.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Number of carriers.

Examples

SENS:IMD:CTB:NCAR 10

sense2:imd:ctb:ncarriers 50

Query Syntax

SENSe<cnum>:IMD:CTB:NCARriers?

Return Type

Numeric

Default

40

(Read-Write) Sets and returns the CTB Power. Valid only with measurement parameters: CTBLo and CTBHi and for Normalization Modes dBm and dBmV.  Learn more.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Power level. The units are determined by Sens:IMD:Norm:Mode, which must be set first.

Examples

SENS:IMD:CTB:NORM:POW 0

sense2:imd:ctb:normalized:power -5

Query Syntax

SENSe<cnum>:IMD:CTB:NORMalized:POWer?

Return Type

Numeric

Default

0

(Read-Write) Sets and returns the offset that is applied to CTB measurements. Valid only with measurement parameters:  CTB, CTBLo, CTBHi, CTBE, CTBELo, and CTBEHi.  Learn more.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Offset value in dBm

Examples

SENS:IMD:CTB:OFFS 3

sense2:imd:ctb:offset 7

Query Syntax

SENSe<cnum>:IMD:CTB:OFFSet?

Return Type

Numeric

Default

0

(Read-Write) Sets and returns fixed tone spacing.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Tone spacing frequency in Hz. The F1 and F2 tones MUST be within the frequency range of the PNA.

Examples

SENS:IMD:FREQ:DFR 1e6

sense2:imd:frequency:dfrequency:cw 2e7

Query Syntax

SENSe<cnum>:IMD:FREQuency:DFRequency[:CW]?

Return Type

Numeric

Default

1 MHz

(Read-Write) Sets and returns the starting main tone separation for sweep type = DFRequency (delta frequency).

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Starting tone separation between F1 and F2 in Hz. Both F1 and F2 tones MUST be within the frequency range of the PNA where:

F1 (start) = FREQ:FCEN – DFR:Start / 2

F2 (start) = FREQ:FCEN + DFR:Start / 2

Examples

SENS:IMD:FREQ:DFR:STAR 1e6

sense2:imd:frequency:dfrequency:start 2e7

Query Syntax

SENSe<cnum>:IMD:FREQuency:DFRequency:STARt?

Return Type

Numeric

Default

1 MHz

(Read-Write) Sets and returns the stopping main tone separation for sweep type = DFRequency (delta frequency).

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Stopping tone separation between F1 and F2 in Hz. Both F1 and F2 tones MUST be within the frequency range of the PNA where:

F1 (stop) = FREQ:FCEN – DFR:Stop / 2

F2 (stop) = FREQ:FCEN + DFR:Stop / 2

Examples

SENS:IMD:FREQ:DFR:STOP 1e6

sense2:imd:frequency:dfrequency:stop 2e7

Query Syntax

SENSe<cnum>:IMD:FREQuency:DFRequency:STOP?

Return Type

Numeric

Default

10 MHz

(Read-Write) Sets and returns the frequency of the F1 tone.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

F1 tone frequency in Hz. The F1 and F2 tones MUST be within the frequency range of the PNA.

Examples

SENS:IMD:FREQ:F1 1e9

sense2:imd:frequency:F1:cw 2e7

Query Syntax

SENSe<cnum>:IMD:FREQuency:F1[:CW]?

Return Type

Numeric

Default

.9995 GHz

(Read-Write) Sets and returns the frequency of the F2 tone.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

F2 tone frequency in Hz. The F1 and F2 tones MUST be within the frequency range of the PNA.

Examples

SENS:IMD:FREQ:F2 1e9

sense2:imd:frequency:F2:cw 2e7

Query Syntax

SENSe<cnum>:IMD:FREQuency:F2[:CW]?

Return Type

Numeric

Default

1.0005 GHz

(Read-Write) Sets and returns the center frequency of the main tones.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Tone center frequency in Hz. The F1 and F2 tones MUST be within the frequency range of the PNA.

Examples

SENS:IMD:FREQ:FCEN 1e9

sense2:imd:frequency:fcenter:cw 2e7

Query Syntax

SENSe<cnum>:IMD:FREQuency:FCENter[:CW]?

Return Type

Numeric

Default

1.0 GHz

(Read-Write) Sets and returns the sweep center frequency when sweeping the main tones.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Center frequency in Hz. The F1 and F2 tones MUST be within the frequency range of the PNA.

Examples

SENS:IMD:FREQ:FCEN:CENT 1e9

sense2:imd:frequency:fcenter:center 2e7

Query Syntax

SENSe<cnum>:IMD:FREQuency:FCENter:CENTer?

Return Type

Numeric

Default

13.255 GHz

(Read-Write) Sets and returns the frequency span when sweeping the main tones.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Frequency span in Hz. The F1 and F2 tones MUST be within the frequency range of the PNA.

Examples

SENS:IMD:FREQ:FCEN:SPAN 1e9

sense2:imd:frequency:fcenter:span 2e7

Query Syntax

SENSe<cnum>:IMD:FREQuency:FCENter:SPAN?

Return Type

Numeric

Default

26.489 GHz

(Read-Write) Sets and returns the start frequency when sweeping the main tones.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Start frequency in Hz. The F1 and F2 tones MUST be within the frequency range of the PNA.

Examples

SENS:IMD:FREQ:FCEN:STAR 1e9

sense2:imd:frequency:fcenter:start 2e7

Query Syntax

SENSe<cnum>:IMD:FREQuency:FCENter:STARt?

Return Type

Numeric

Default

10.5 MHz

(Read-Write) Sets and returns the stop frequency when sweeping the main tones.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Stop frequency in Hz. The F1 and F2 tones MUST be within the frequency range of the PNA.

Examples

SENS:IMD:FREQ:FCEN:STOP 1e9

sense2:imd:frequency:fcenter:stop 2e9

Query Syntax

SENSe<cnum>:IMD:FREQuency:FCENter:STOP?

Return Type

Numeric

Default

26.4995 GHz

(Read-only) Returns the highest order product that can be measured by SweptIMD.

Parameters

None

Examples

SENS:IMD:HOPR?

'always returns 9

Return Type

Numeric

Default

9

(Read-only) Returns the highest order product measured by SweptIMD.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

Examples

SENS:IMD:HOPR:ACT?

Return Type

Numeric

Default

Not applicable

(Read-Write) Sets and returns the IF Bandwidth for measurement of the main F1 and F2 tones. Learn more about setting IFBW for IMD.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Choose from: 1 | 2 | 3 | 5 | 7 | 10 | 15 | 20 | 30 | 50 | 70 | 100 | 150 | 200 | 300 | 500 | 700 | 1k | 1.5k | 2k | 3k | 5k | 7k | 10k | 15k | 20k | 30k | 50k | 70k | 100k | 150k| 200k | 280k | 360k | 600k

If an invalid number is specified, the analyzer will round up to the closest valid number.

Examples

SENS:IMD:IFBW:MAIN 280e3

sense2:imd:ifbwidth:main 150K

Query Syntax

SENSe<cnum>:IMD:IFBWidth:MAIN?

Return Type

Numeric

Default

1 kHz

(Read-Write) Sets and returns the IF Bandwidth for measurement of the intermodulation products. Learn more about setting IFBW for IMD.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Choose from: 1 | 2 | 3 | 5 | 7 | 10 | 15 | 20 | 30 | 50 | 70 | 100 | 150 | 200 | 300 | 500 | 700 | 1k | 1.5k | 2k | 3k | 5k | 7k | 10k | 15k | 20k | 30k | 50k | 70k | 100k | 150k| 200k | 280k | 360k | 600k

If an invalid number is specified, the analyzer will round up to the closest valid number.

Examples

SENS:IMD:IFBW:IMT 50

sense2:imd:ifbwidth:imtone 200

Query Syntax

SENSe<cnum>:IMD:IFBWidth:IMTone?

Return Type

Numeric

Default

1 kHz

(Read-Write) Sets and returns the method by which CTB and CSO calculations are performed.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<char>

Normalization mode. Choose from:

NONE - the normalized power is not used in calculation

NCARrier - CTB and CSO is corrected by subtracting 10*log(N/2), where

• N = # of carriers for CTB

• N =  # of distortion products for CSO

DBM - the composited normalized power for CTB or CSO is treated as a dBm value

DBMV - the composited normalized power for CTB or CSO is treated as a dBmV value.

Note: Power values are stored using the currently-set units. Therefore, first set units with this command, then set power values using:

SENS:IMD:CSO:NORM:POW or SENS:IMD:CTB:NORM:POW

Examples

SENS:IMD:NORM:MODE NCAR

sense2:imd:normalized:mode none

Query Syntax

SENSe<cnum>:IMD:NORMalized:MODE?

Return Type

Character

Default

NCARrier

(Write-only)  Sets the input port and output port of an IMD or IMDx channel. This setting is necessary only when using the limited port mapping feature. Learn more.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<input>

PNA port connected to the DUT Input. Choose from 1 or 3. When input is 3, an external combiner must be used.

<output>

PNA port connected to the DUT Output.

When input is 1, output must be 2.

When input is 3, output must be 4.

Examples

SENS:IMD:PMAP 3,4

sense2:imd:pmap 3,4

Query Syntax

Not Applicable

Default

1,2

(Read-only)  Returns the PNA test port to be connected to the DUT input for an IMD or IMDx channel. Set the PNA port to DUT mapping using SENS:IMD:PMAP

Parameters

<cnum>

IMD channel number. If unspecified, value is set to 1.

Examples

SENS:IMD:PMAP:INP?

sense2:imd:pmap:input?

Default

1

(Read-only)  Returns the PNA test port to be connected to the DUT output for an IMD or IMDx channel. Set the PNA port to DUT mapping using SENS:IMD:PMAP

Parameters

<cnum>

IMD channel number. If unspecified, value is set to 1.

Examples

SENS:IMD:PMAP:OUTP?

sense2:imd:pmap:output?

Default

2

(Read-only) Returns the state of whether or not 2nd order parameters are measured. A "1" or "ON" indicates 2nd order parameters are measured.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

Examples

SENS:IMD:SORD:ACT?

Return Type

Boolean

Default

Not applicable

(Read-Write) Sets and returns the state of power coupling for F1 and F2.  Learn more about tone power.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<bool>

Tone power level coupling state. Choose from:

ON (or 1) - F1 and F2 power is coupled.

OFF (or 0) - F1 and F2 power is NOT coupled. Set power levels individually.

Examples

SENS:IMD:TPOW:COUP 0

sense2:imd:tpower:couple:state ON

Query Syntax

SENSe<cnum>:IMD:TPOWer:COUPle[:STATe]?

Return Type

Boolean

Default

ON

(Read-Write) This command is replaced with SENS:IMD:TPOW:LEV

Sets and returns the state of Equal Tone Power setting.  Learn more about tone power.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<bool>

Equal Tone Power state. Choose from:

ON (or 1) - Equalize f1 and f2 power.

OFF (or 0) - Do NOT equalize f1 and f2 power. Use source power cal.

Examples

SENS:IMD:TPOW:EQU 0

sense2:imd:tpower:equalize:state ON

Query Syntax

SENSe<cnum>:IMD:TPOWer:EQUalize:STATe?

Return Type

Boolean

Default

OFF

(Read-Write)  Sets and returns the power level of the F1 tone. When SENS:IMD:TPOW:COUP ON (tone power is coupled), setting either F1 or F2 power sets both. Learn more about tone power.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Tone power level in dBm. Choose a value between +30 dBm and -30 dBm.

Examples

SENS:IMD:TPOW:F1 0

sense2:imd:tpower:F1 -10

Query Syntax

SENSe<cnum>:IMD:TPOWer:F1?

Return Type

Numeric

Default

-24 dBm

(Read-Write) Sets and returns the power level of the F2 tone. When SENS:IMD:TPOW:COUP ON (tone power is coupled), setting either F1 or F2 power sets both. Learn more about tone power.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Tone power level in dBm. Choose a value between +30 dBm and -30 dBm.

Examples

SENS:IMD:TPOW:F2 0

sense2:imd:tpower:F2 -10

Query Syntax

SENSe<cnum>:IMD:TPOWer:F2?

Return Type

Numeric

Default

-24 dBm

(Read-Write) Sets and returns the start power level of the F1 tone.  Learn more about tone power.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Start power in dBm. Choose a value between +30 dBm and -30 dBm.

Examples

SENS:IMD:TPOW:F1:STAR 0

sense2:imd:tpower:F1:start -10

Query Syntax

SENSe<cnum>:IMD:TPOWer:F1:STARt?

Return Type

Numeric

Default

-24 dBm

(Read-Write) Sets and returns the stop power level of the F1 tone. Learn more about tone power.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Stop power in dBm. Choose a value between +30 dBm and -30 dBm.

Examples

SENS:IMD:TPOW:F1:STOP 0

sense2:imd:tpower:F1:stop 10

Query Syntax

SENSe<cnum>:IMD:TPOWer:F1:STOP?

Return Type

Numeric

Default

-10 dBm

(Read-Write) Sets and returns the start power level of the F2 tone.  Learn more about tone power.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Start power in dBm. Choose a value between +30 dBm and -30 dBm.

Examples

SENS:IMD:TPOW:F2:STAR 0

sense2:imd:tpower:F2:start -10

Query Syntax

SENSe<cnum>:IMD:TPOWer:F2:STARt?

Return Type

Numeric

Default

-24 dBm

(Read-Write) Sets and returns the stop power level of the F2 tone.  Learn more about tone power.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<num>

Stop power in dBm. Choose a value between +30 dBm and -30 dBm.

Examples

SENS:IMD:TPOW:F2:STOP 0

sense2:imd:tpower:F2:stop 10

Query Syntax

SENSe<cnum>:IMD:TPOWer:F2:STOP?

Return Type

Numeric

Default

-10 dBm

(Read-Write) This command replaces SENS:IMD:TPOW:EQU and SENS:IMD:TPOW:SET

Sets and returns the tone power leveling mode.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<char>

Choose from:

NONE - (Set Input Power)  The specified f1 and f2 power levels are set at the DUT input.

INPut - (Set Input Power, receiver leveling)  The specified f1 and f2 power levels are set at the DUT input using receiver leveling at the input reference receiver.

EQUal - (Set Input Power, equal tones at output)  The specified f1 and f2 power levels are set at the DUT input and a measurement is made at the output.

OUTPut - (Set Output Power, receiver leveling)  The specified f1 and f2 power levels are set at the DUT output.

Learn more about these choices.

Examples

SENS:IMD:TPOW:LEV INP

sense2:imd:tpower:level output

Query Syntax

SENSe<cnum>:IMD:TPOWer:LEVel?

Return Type

Character

Default

NONE

(Read-Write) This command is replaced with SENS:IMD:TPOW:LEV

Sets and returns whether tone power is specified at the DUT input or output.

Parameters

<cnum>

Channel number of the IMD measurement. If unspecified, value is set to 1.

<char>

Choose from:

INPUT - Specified power level is set at the DUT input.

OUTPUT - Specified power level is set at the DUT output.

Examples

SENS:IMD:TPOW:SET INPUT

sense2:imd:tpower:set output

Query Syntax

SENSe<cnum>:IMD:TPOWer:SET?

Return Type

Character

Default

INPUT