Sense Attenuator

When you use the PXI VNAs, you can control the M9168C/E program Step Attenuator module through the VNA firmware. The following commands are available when the launcher includes the M9168C/E.

SENSe:ATTenuatorr:M91Xx

| COUNt?

| MODule

| ATTnuation

| CHASsis

| CONTrol[:STATe]

| PATH

| RESet:IMMediate

| SLOT

Click on a keyword to view the command details.

SENSe<cnum>:ATTenuator:M91Xx:COUNt?

Applicable Models: PXI VNAs (Read-only) Returns the total number of M9168C/E Attenuator that are connected to the VNA firmware.
Parameters
<cnum>	Any existing channel number; if unspecified, value is set to 1. This command is common for all channels and the setting is ignored.
Examples	SENS:ATT:M91X:COUN? sense2:attenuator:m91xx:count?
Return Type	Numeric
Default	Not applicable

SENSe<cnum>:ATTenuator:M91Xx:MODule<mod>:ATTenuation<id> <val>

Applicable Models: PXI VNAs (Read-Write) Sets and reads the attenuation of the M9168C/E.
Parameters
<cnum>	Any existing channel number; if unspecified, value is set to 1.
<mod>	Module number of M9168C/E. The number starts from 1 for the leftmost module of M9168C/E.
<id>	Id of the attenuation value, if unspecified, value is set to 1 1: for S parameter sweep 2: for Noise Figure Sweep
<val>	Attenuation in dB from 0 to 101dB with 1 dB step.
Examples	SENS:ATT:M91X:MOD1:ATT1 10 sense2:attenuator:m91xx:module2:attenuation2 5
Query Syntax	SENSe<cnum>:ATTenuator:M91Xx::MODule<mod>:ATTenuation<id>?
Return Type	Numeric
Default	0

SENSe<cnum>:ATTenuator:M91Xx:MODule<mod>:CHASsis?

Applicable Models: PXI VNAs (Read Only) Returns the chassis number where the specified M9168C/E module is located.
Parameters
<cnum>	Any existing channel number; if unspecified, value is set to 1. This command is common for all channels and the setting is ignored.
<mod>	Module number of M9168C/E. The number starts from 1 for the leftmost module of M9168C/E.
Examples	SENS:ATT:M91X:MOD1:CHAS? sense2:attenuator:m91xx:module2:chassis?
Return Type	Numeric
Default	Not applicable

SENSe<cnum>:ATTenuator:M91Xx:MODule<mod>:CONTrol[:STATe] <bool>

Applicable Models: PXI VNAs (Read-Write) Sets and reads the status of M9168C/E control.
Parameters
<cnum>	Any existing channel number; if unspecified, value is set to 1.
<mod>	Module number of M9168x. The number starts from 1 for the leftmost module M9168x
<bool>	Module control state. Choose from: O or OFF - Skips to control the M9168C/E at the specified channel. 1 or ON - Enables to control the M9168C/E at the specified channel.
Examples	SENS:ATT:M91X:MOD1:CONT ON sense2:attenuator:m91xx:module2:control 0
Query Syntax	SENSe<cnum>:ATTenuator:M91Xx:MODule<mod>:CONTrol[:STATe]?
Return Type	Boolean
Default	ON

SENSe<cnum>:ATTenuator:M91Xx:MODule<mod>:PATH <char>

Applicable Models: PXI VNAs (Read-Write) Sets and reads the path for the M9168C/E.
Parameters
<cnum>	Any existing channel number; if unspecified, value is set to 1.
<mod>	Module number of M9168C/E. The number starts from 1 for the leftmost module of M9168C/E.
<char>	Path. Choose from: ANY - Fixed attenuator setting NFSource - Attenuation value of ID 1 is used for the source path in S-Parameter sweep Attenuation value of ID 2 is used for the source path in Noise Figure sweep NFReceiver - Receiver path during NF measurement Attenuation value of ID 1 is used for the receiver path in S-Parameter sweep Attenuation value of ID 2 is used for the receiver path in Noise Figure sweep See SENSe:ATT:M91X::MOD:ATT for ID1 and 2
Examples	SENS:ATT:M91X:MOD1:PATH ANY sense2:ATT:M91X:module2:path NFSource
Query Syntax	SENSe<cnum>:ATTenuator:M91Xx:MODule<mod>:PATH?
Return Type	Char
Default	ANY

SENSe<cnum>:ATTenuator:M91Xx:MODule<mod>:RESet:IMMediate

Applicable Models: PXI VNAs (Write Only) Reset the M9168C/E setting at the default value.
Parameters
<cnum>	Any existing channel number; if unspecified, value is set to 1. This command is common for all channels and the setting is ignored.
<mod>	Module number of M9168C/E. The number starts from 1 for the leftmost module of M9168C/E.
Examples	SENS:ATT:M91X:MOD1:RES:IMM sense2:ATT:M91X:module2:reset:immediate
Return Type	Not applicable
Default	Not applicable

SENSe<cnum>:ATTenuator:M91Xx:MODule<mod>:SLOT?

Applicable Models: PXI VNAs (Read Only) Reads the slot number where the M9168C/E is located.
Parameters
<cnum>	Any existing channel number; if unspecified, value is set to 1. This command is common for all channels and the setting is ignored.
<mod>	Module number of M9168C/E. The number starts from 1 for the leftmost module of M9168C/E.
Examples	SENS:ATT:M91X:MOD1:SLOT? sense2:ATT:M91X:module2:slot?
Return Type	Numeric
Default	Not applicable