Source Commands

SOURce:

CATalog?

DC - More commands

PN:POWer:MODE

PORT:NUM?

POWer

       | ALC:MODE

            | CATalog?

            | RECeiver - More commands

       | ATTenuation

            | AUTO

            | RECeiver

                 | TEST

       | CENTer

       | CORRection - More commands

       | COUPle

       | [LEVel]

            | [IMMediate][AMPLitude]

            | SLOPe

                 | STATe

       | MODE

       | PORT

            | STARt

            | STOP

       | SPAN

       | STARt

       | STOP

PULSe

       | MODulator

         | [:STATe]

         | EXISts?

Applicable Models: All

(Read-only) Returns a list of valid port names that can be controlled. Some ports only have string names, NOT numbers. All commands that require a port argument have provisions for specifying either a port number OR a string name.

See also: Remotely Specifying a Source Port.

Parameters

<cnum>

Any existing channel number. If unspecified, value is set to 1

Examples

SOUR:CAT?
source:catalog

'Some PNA-X models return
"Port 1,Port 2,Port 3,Port 4,Port 1 Src2,Source3"

Return Type

Comma-separated list of strings.

Default

Not applicable

Applicable Models: E505xA

(Read-Write)  Turns ON or OFF for the Source1/2 output in residual measurement.

Parameters

<cnum>

Channel number of the measurement (optional).

<bool>

Choose from:

0 - OFF - Disable the power output

1 - ON - Enable the power output

Examples

SOUR:PN:POWER:MODE ON

source2:pn:power:mode on

Query Syntax

SOURe<cnum>:PN:POWer:MODE?

Return Type

Boolean

Default

OFF

Applicable Models: All

(Read-Write) Sets and returns the ALC mode for the specified channel and port. Use SOUR:POW:ALC:MODE:CAT? to return a list of valid ALC modes for the VNA.

Learn more about ALC mode.

Parameters

<cnum>

Any existing channel number. If unspecified, value is set to 1

<port>

Source port number of the VNA. If unspecified, value is set to 1. To make settings for ports that are not simple numbers, use the [src] argument.

<char>

ALC Mode.

For the PNA-X choose from:

• INTernal  Standard ALC loop

• OPENloop  No ALC loop

To set Leveling Mode to Receiver Leveling, use the Receiver Leveling commands.

[src]

String. (NOT case sensitive). Source port. Optional. Use SOUR:CAT? to return a list of valid port names.

While this argument can be used to make settings for ALL ports, it is designed to access ports such as an external source, true mode balanced port, or one of the Source outputs on the 2-port PNA-X model with multiple sources such as "Port 1 Src2". Otherwise, the <port> argument performs the same function. If both arguments are specified, [src] takes priority.

Examples

SOUR:POW:ALC INT

source2:power2:alc:mode openloop

source:power:alc:mode openloop,"Port 1 Src2"

Query Syntax

SOURce<cnum>:POWer<port>:ALC:MODE? [src]

Return Type

Character

Default

INTernal

Applicable Models: All

(Read-only) Returns a list of valid ALC modes for the specified channel and port number. Use the returned values to set SOUR:POW:ALC:MODE.

Parameters

<cnum>

Any existing channel number. If unspecified, value is set to 1

<port>

Source port number of the VNA. If unspecified, value is set to 1. To make settings for ports that are not simple numbers, use the [src] argument.

[src]

String. (NOT case sensitive). Source port. Optional. Use SOUR:CAT? to return a list of valid port names.

While this argument can be used to make settings for ALL ports, it is designed to access ports such as an external source, true mode balanced port, or one of the Source outputs on the 2-port PNA-X model with multiple sources such as "Port 1 Src2". Otherwise, the <port> argument performs the same function. If both arguments are specified, [src] takes priority.

Examples

SOUR:POW:ALC:CAT?

source2:power2:alc:mode:catalog?

source:power:alc:mode:catalog? "INTernal,OPENloop,RxLeveling"

Return Type

Comma-separated list of strings.

Default

Not applicable

Applicable Models: All

(Read-Write) Sets the attenuation level for the selected channel. Sending this command turns automatic attenuation control (SOUR:POW:ATT:AUTO) to OFF. If the ports are coupled, changing the attenuation on one port will also change the attenuation on all other ports. To turn port coupling OFF use SOURce:POWer:COUPle OFF.

Note: Attenuation cannot be set with Sweep Type set to Power

See Sens:Power:ATT to change receiver attenuation.

Parameters

<cnum>

Any existing channel number. If unspecified, value is set to 1

<port>

Source port number of the VNA. If unspecified, value is set to 1. To make settings for ports that are not simple numbers, use the [src] argument.

<num>

Attenuation value.  The range of settable values depends on the VNA model. To determine the valid settings, do one of the following:

• Perform a query using MAX, then MIN, as an argument. Example: SOURce:POWer:ATT? Max  However, this will not tell you the attenuation step size.

If an invalid attenuation setting is entered, the VNA will select the next lower valid value. For example, if 19 is entered, then for an E8361A,  10 dB attenuation will be selected.

Note: This command will accept MIN or MAX instead of a numeric parameter. See SCPI Syntax for more information.

[src]

String. (NOT case sensitive). Source port. Optional. Use SOUR:CAT? to return a list of valid port names.

While this argument can be used to make settings for ALL ports, it is designed to access ports such as an external source, true mode balanced port, or one of the Source outputs on the 2-port PNA-X model with multiple sources such as "Port 1 Src2". Otherwise, the <port> argument performs the same function. If both arguments are specified, [src] takes priority.

Examples

SOUR:POW:ATT 10

source2:power2:attenuation maximum

source:power:att 20, "Port 1 Src2"

Query Syntax

SOURce<cnum>:POWer<port>:ATTenuation? [min/max] [src] [min/max,src]

Return Type

Numeric

Default

0

Applicable Models: N522xB, N523xB, N524xB, M937xA, P937xA

(Read-Write) Turns automatic attenuation control ON or OFF. Setting an attenuation value (using SOURce:POWer:ATTenuation <num>) sets AUTO OFF.

Parameters

<cnum>

Any existing channel number. If unspecified, value is set to 1.

<port>

Source port number of the VNA. If unspecified, value is set to 1.To make settings for ports that are not simple numbers, use the [src] argument.

<bool>

ON (or 1) - turns coupling ON. The analyzer automatically selects the appropriate attenuation level to meet the specified power level.

OFF (or 0) - turns coupling OFF. Attenuation level must be set using SOURce:POWer:ATTenuation <num>.

[src]

String. (NOT case sensitive). Source port. Optional. Use SOUR:CAT? to return a list of valid port names.

While this argument can be used to make settings for ALL ports, it is designed to access ports such as an external source, true mode balanced port, or one of the Source outputs on the 2-port PNA-X model with multiple sources such as "Port 1 Src2". Otherwise, the <port> argument performs the same function. If both arguments are specified, [src] takes priority.

Examples

SOUR:POW2:ATT:Auto On

source2:power:attentuation:auto off

sour:pow:att:auto 1, "Port 1 Src2"

Query Syntax

SOURce<cnum>:POWer:ATTenuation:Auto? [src]

Return Type

Boolean (1 = ON, 0 = OFF)

Default

ON

Applicable Models: E505xA with S96390xB or S9601xB

(Read-Write) Sets the attenuation level for the specified test attenuator/port.

Note (M980xA, P50xxA/B): This command works only for Spectrum Analyzer channels. For S-parameter channels, use the Receiver Gain dialog or SENSe:SOURce:RECeiver:GAIN:* commands.

Note (M983xA) :This command works only when gain coupling disabled by SENS:SOUR:REC:GAIN:COUP:ALL.

Parameters

<cnum>

Any existing channel number. If unspecified, value is set to 1.

<port>

Receiver port number of the VNA. If unspecified, value is set to 1.

<num>

Attenuation value in dB.

[M980xA and P50xxA/B] 0dB (Low) or 35dB (High) / 0dB (Low) or 20dB (High)  

If a number other than these is entered, the analyzer will select the next lower valid value. For example, if 19dB is entered, then 0dB attenuation will be selected.

[M983xA] 0 to 30 dB with 2 dB step

Examples

SOUR:POW2:ATT:REC:TEST 0

source:power:attenuation:receiver:test 35

Query Syntax

SOURce<cnum>:POWer<port>:ATTenuation:RECeiver:TEST?

Return Type

Numeric. If querying for the standard port, the return value is 0

Default

35 for others / 20 for M980xA and P50xxA / 18 for M983xA

Applicable Models: All

(Read-Write) Sets the power sweep center power. Must also set:
SENS:SWE:TYPE POWer and SOURce:POWer:SPAN <num>.

Parameters

<cnum>

Any existing channel number. If unspecified, value is set to 1

<num>

Center power. Actual achievable leveled power depends on frequency.

<port>

If provided, this argument is ignored by the VNA.

Examples

SOUR:POW:CENT -15
source2:power:center -7

Query Syntax

SOURce<cnum>:POWer:CENTer?

Return Type

Numeric

Default

0 dBm

Applicable Models: All

(Read-Write) Turns Port Power Coupling ON or OFF.

Parameters

<cnum>

Any existing channel number. If unspecified, value is set to 1

<ON | OFF>

ON (or 1) - turns coupling ON. The same power level is used for both source ports.

OFF (or 0) - turns coupling OFF.  Power level can be set individually for each source port.

Examples

SOUR:POW:COUP ON
source2:power:couple off

Query Syntax

SOURce<cnum>:POWer:COUPle?

Return Type

Boolean (1 = ON, 0 = OFF)

Default

ON

Applicable Models: All

(Read-Write) Sets the RF power output level.

Note: When the sweep type is "segment sweep", and "independent port power per segment" is set, then this command is not used.

Parameters

<cnum>

Any existing channel number. If unspecified, value is set to 1

<port>

Source port number of the VNA. If unspecified, value is set to 1. To make settings for ports that are not simple numbers, use the [src] argument.

<num>

Source power in dBm.

Note: The range of settable power values depends on the VNA model and if source attenuators are installed. To determine the range of values, perform a query using MAX, then MIN, as an argument. (SOUR:POW:ATT:AUTO must be set to ON)  Example: SOURce:POWer? Max

Actual achievable leveled power depends on frequency.

[src]

String. (NOT case sensitive). Source port. Optional. Use SOUR:CAT? to return a list of valid port names.

While this argument can be used to make settings for ALL ports, it is designed to access ports such as an external source, true mode balanced port, or one of the Source outputs on the 2-port PNA-X model with multiple sources such as "Port 1 Src2". Otherwise, the <port> argument performs the same function. If both arguments are specified, [src] takes priority.

Examples

SOUR:POW1 5
source2:power:level:immediate:amplitude maximum

sour:pow 5, "Port 1 Src2"

Query Syntax

SOURce<cnum>:POWer[:LEVel][:IMMediate][:AMPLitude]? [src]

Return Type

Numeric

Default

0 dBm

Applicable Models: All

(Read-Write) Sets the RF power slope value.

Also enable the slope state using SOUR:POW:SLOP:STAT ON.

Parameters

<cnum>

Any existing channel number. If unspecified, value is set to 1

<num>

Slope value in db/GHz. Choose any value between -2 and 2 (0 is no slope).

Examples

SOUR:POW:SLOP .5234434

source2:power:level slope -1.345

Query Syntax

SOURce<cnum>:POWer[:LEVel]:SLOPe?

Return Type

Numeric

Default

0

Applicable Models: All

(Read-Write) Turns Power Slope ON or OFF. Set the slope using SOUR:POW:SLOP.

Parameters

<cnum>

Any existing channel number. If unspecified, value is set to 1

<ON|OFF>

ON (or 1) - turns slope ON.

OFF (or 0) - turns slope OFF.

Examples

SOUR:POW:SLOP:STAT ON
source2:power:slope:state off

Query Syntax

SOURce<cnum>:POWer[:LEVel]:SLOPe:STATe?

Return Type

Boolean (1 = ON, 0 = OFF)

Default

OFF

Applicable Models: All

(Read-Write) Sets the state of VNA source for the specified port.

Parameters

<cnum>

Any existing channel number. If unspecified, value is set to 1

<port>

Source port number of the VNA. If unspecified, <port> is set to 1. To make settings for ports that are not simple numbers, use the [src] argument.

<state>

Source state. Choose from:

• AUTO  Source power is turned ON when required for a measurement.

• ON  Source power is always ON regardless of the measurement.

• OFF  Source power is always OFF regardless of the measurement.

• NOCTL  Do not send OFF commands to the external sources. If an external source is in the OFF state, this option is used to stop sending OFF commands to the external source to increase sweep speed.

Examples

SOUR:POW:MODE ON

source2:power4:mode OFF

Query Syntax

SOURce<cnum>:POWer<port>:MODE?

Return Type

Character

Default

Auto

Applicable Models: All

(Read-Write) Sets and reads the power sweep start power value for a specific port. This allows uncoupled forward and reverse power sweep ranges. Must also set SENS:SWE:TYPE POWer and SOUR:POW:COUPle OFF.

Note: When the sweep type is "segment sweep", this command is not used.

Parameters

<cnum>

Any existing channel number. If unspecified, value is set to 1

<port>

Source port number of the VNA. If unspecified, <port> is set to 1. To make settings for ports that are not simple numbers, use the [src] argument.

<num>

Start power in dBm.

Note: The range of settable power values depends on the VNA model and if source attenuators are installed. To determine the range of values, perform a query using MAX, then MIN, as an argument. (SOUR:POW:ATT:AUTO must be set to ON)  Example: SOURce:POWer:STARt? MIN

Actual achievable leveled power depends on frequency.

Examples

SOUR:POW1:PORT:STAR -15
source2:power:port:start 5

Query Syntax

SOURce<cnum>:POWer<port>:PORT:STARt?

Return Type

Numeric

Default

-10 dBm

Applicable Models: All

(Read-Write) Sets and reads the power sweep stop power value for a specific port. This allows uncoupled forward and reverse power sweep ranges. Must also set SENS:SWE:TYPE POWer and SOUR:POW:COUPle OFF.

Note: When the sweep type is "segment sweep", this command is not used.

Parameters

<cnum>

Any existing channel number. If unspecified, value is set to 1

<port>

Source port number of the VNA. If unspecified, <port> is set to 1. To make settings for ports that are not simple numbers, use the [src] argument.

<num>

Stop power in dBm.

Note: The range of settable power values depends on the VNA model and if source attenuators are installed. To determine the range of values, perform a query using MAX, then MIN, as an argument. (SOUR:POW:ATT:AUTO must be set to ON)  Example: SOURce:POWer:STARt? MIN

Actual achievable leveled power depends on frequency.

Examples

SOUR:POW1:PORT:STOP -15
source2:power:port:stop 5

Query Syntax

SOURce<cnum>:POWer<port>:PORT:STOP?

Return Type

Numeric

Default

0 dBm

Applicable Models: All

(Read-Write) Sets the power sweep span power. Must also set:

SENS:SWE:TYPE POWer and SOURce:POWer:CENTer <num>.

Parameters

<cnum>

Any existing channel number. If unspecified, value is set to 1.

<num>

Span power. Actual achievable leveled power depends on frequency.

<port>

If provided, this argument is ignored by the VNA.

Examples

SOUR:POW:SPAN -15
source2:power:span -7

Query Syntax

SOURce<cnum>:POWer:SPAN?

Return Type

Numeric

Default

0 dBm

Applicable Models: All

(Read-Write) Sets the power sweep start power for ALL ports being used by the specified channel. Must also set:

SENS:SWE:TYPE POWer and SOURce:POWer:STOP <num>.

Note: This command is not recommended, however this command is supported for backwards compatibility. This command will limit the possible power setting to the available range on Port 1, even if other ports have a wider power range. It is recommended to use the SOURce:POWer:PORT:STARt command instead.

To set start power for a specific port, use SOUR:POW:PORT:STARt.

Note: When the sweep type is "segment sweep", this command is not used.

Parameters

<cnum>

Any existing channel number. If unspecified, value is set to 1

<num>

Start power.

Note: The range of settable power values depends on the VNA model and if source attenuators are installed. To determine the range of values, perform a query using MAX, then MIN, as an argument. (SOUR:POW:ATT:AUTO must be set to ON)  Example: SOURce:POWer:STARt? MIN

Actual achievable leveled power depends on frequency.

<port>

If provided, this argument is ignored by the VNA.

Examples

SOUR:POW:STAR -15
source2:power:start -7

Query Syntax

SOURce<cnum>:POWer:STARt?

Return Type

Numeric

Default

0 dBm

Applicable Models: All

(Read-Write) Sets the power sweep stop power for ALL ports being used by the specified channel.. Must also set: SENS:SWE:TYPE POWer and SOURce:POWer:START <num>.

To set start power for a specific port, use SOUR:POW:PORT:STOP.

Note: When the sweep type is "segment sweep", this command is not used.

Parameters

<cnum>

Any existing channel number. If unspecified, value is set to 1

<num>

Stop power.

Note: The range of settable power values depends on the VNA model and if source attenuators are installed. To determine the range of values, perform a query using MAX, then MIN, as an argument. (SOUR:POW:ATT:AUTO must be set to ON)  Example: SOURce:POWer:STOP? MAX

Actual achievable leveled power depends on frequency.

<port>

If provided, this argument is ignored by the VNA.

Examples

SOUR:POW:STOP -15

source2:power:stop -7

Query Syntax

SOURce<cnum>:POWer:STOP?

Return Type

Numeric

Default

0 dBm

Applicable Models: All

(Read-Write) Turns pulse on and off with an external modulation source.

Parameters

<cnum>

Any existing channel number. If unspecified, value is set to 1

<ON|OFF>

ON (or 1) - turns pulse ON.

OFF (or 0) - turns pulse OFF.

<port>

Source port number of the VNA. If unspecified, <port> is set to 1.

[src]

String. (NOT case sensitive). Source port. Optional. Use SOUR:CAT? to return a list of valid port names.

While this argument can be used to make settings for ALL ports, it is designed to access ports such as an external source, true mode balanced port, or one of the Source outputs on the 2-port PNA-X model with multiple sources such as "Port 1 Src2". Otherwise, the <port> argument performs the same function. If both arguments are specified, [src] takes priority.

Examples

SOUR:PULS:MOD:STAT ON,"MyMxg"
source2:pulse1:modulator:state off

Query Syntax

SOURce<cnum>:PULSe<port>:MODulator[:STATe]?

Return Type

Boolean (1 = ON, 0 = OFF)

Default

OFF

Applicable Models: All

(Read-only) Checks if pulse source exists.

Parameters

Examples

SOUR:PULS:MOD:EXIS?
source:pulse:modulator:exists? "MyMxg"

[src]

String. (NOT case sensitive). Source port. Optional. Use SOUR:CAT? to return a list of valid port names.

While this argument can be used to make settings for ALL ports, it is designed to access ports such as an external source, true mode balanced port, or one of the Source outputs on the 2-port PNA-X model with multiple sources such as "Port 1 Src2". Otherwise, the <port> argument performs the same function. If both arguments are specified, [src] takes priority.

Return Type

String

Default

Not applicable