Sense:Frequency Commands

Sets the sweep frequencies of the analyzer.

SENSe:FREQuency

| STEP

Click on a keyword to view the command details.

See Also

Example using some of these commands.
Learn about Frequency Sweep
Synchronizing the Analyzer and Controller
SCPI Command Tree
See CALCulate:MEASure:X:VALues for frequency point data.

SENSe<cnum>:FREQuency:CENTer <num>

Applicable Models: All (Read-Write) Sets the center frequency of the analyzer. 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>	Center frequency. Choose any number between the minimum and maximum frequency limits of the analyzer. Units are Hz. This command will accept MIN or MAX instead of a numeric parameter. See SCPI Syntax for more information.
Examples	SENS:FREQ:CENT 1000000 sense2:frequency:center 1mhz sense2:frequency:center 1e6
Query Syntax	SENSe<cnum>:FREQuency:CENTer?
Return Type	Numeric
Default	Center of the analyzer's frequency span

SENSe<cnum>:FREQuency:CENTer:STEP:AUTO <bool>

Applicable Models: All (Read-Write) Sets and reads how the center frequency step size is set. When TRUE, center steps by 5% of span. When FALSE, center steps by STEP:SIZE value.
Parameters
<cnum>	Any existing channel number. If unspecified, value is set to 1
<bool>	Choose from: ON (or 1) - Step size is set automatically. OFF (or 0) - Step size is set manually using SENS:FREQ:CENT:STEP:SIZE
Examples	SENS:FREQ:CENT:STEP:AUTO 1
Query Syntax	SENSe<cnum>:FREQuency:CENTer:STEP:AUTO?
Return Type	Boolean
Default	ON

SENSe<cnum>:FREQuency:CENTer:STEP:SIZE <num>

Applicable Models: All (Read-Write) Sets the center frequency step size of the analyzer. This command sets the manual step size (only valid when STEP:AUTO is FALSE).
Parameters
<cnum>	Any existing channel number. If unspecified, value is set to 1
<num>	Step size in Hz. Choose a value below the stop frequency of the analyzer.
Examples	SENS:FREQ:CENT:STEP:SIZE 1e9
Query Syntax	SENSe<cnum>:FREQuency:CENTer:STEP:SIZE?
Return Type	Numeric
Default	Default is 40 MHz. When STEP:AUTO is TRUE, this value is ignored.

SENSe<cnum>:FREQuency[:CW |:FIXed] <num>

Applicable Models: All (Read-Write) Sets the Continuous Wave (or Fixed) frequency. Must also send SENS:SWEEP:TYPE CW to put the analyzer into CW sweep mode.
Parameters
<cnum>	Any existing channel number. If unspecified, value is set to 1
<num>	CW frequency. Choose any number between the minimum and maximum frequency limits of the analyzer. Units are Hz. This command will accept MIN or MAX instead of a numeric parameter. See SCPI Syntax for more information.
Examples	SENS:FREQ 1000000 SENS:FREQ:CW MIN sense2:frequency:fixed 1mhz
Query Syntax	SENSe<cnum>:FREQuency[:CW \| :FIXed]?
Return Type	Numeric
Default	1 GHz

SENSe<cnum>:FREQuency:SPAN <num>

Applicable Models: All (Read-Write) Sets the frequency span of the analyzer. 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>	Frequency span in Hz. Choose any number from 70 (minimum) and the maximum frequency span of the analyzer. This command will accept MIN or MAX instead of a numeric parameter. See SCPI Syntax for more information.
Examples	SENS:FREQ:SPAN 1000000 sense2:frequency:span max
Query Syntax	SENSe<cnum>:FREQuency:SPAN?
Return Type	Numeric
Default	Maximum frequency span of the analyzer

SENSe<cnum>:FREQuency:SPAN:FULL

Applicable Models: All (Write-Only) Sets the frequency span to the entire frequency range of the analyzer.
Parameters
<cnum>	Any existing channel number. If unspecified, value is set to 1
Examples	SENS:FREQ:SPAN:FULL
Query Syntax	Not Applicable
Default	Maximum frequency span of the analyzer

SENSe<cnum>:FREQuency:STARt <num>

Applicable Models: All (Read-Write) Sets the start frequency of the analyzer. 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 frequency. Choose any number between the MIN and MAX frequency limits of the analyzer. Units are Hz. If FREQ:START is set greater than FREQ:STOP, then the stop frequency is set to the start frequency + frequency span. This command will accept MIN or MAX instead of a numeric parameter. See SCPI Syntax for more information.
Examples	SENS:FREQ:STAR 1000000 sense2:frequency:start MIN
Query Syntax	SENSe<cnum>:FREQuency:STARt?
Return Type	Numeric
Default	Minimum frequency of the analyzer

SENSe<cnum>:FREQuency:STOP <num>

Applicable Models: All (Read-Write) Sets the stop frequency of the analyzer. 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 frequency. Choose any number between 70 (minimum) and maximum frequency limits of the analyzer. Units are Hz. If FREQ:STOP is set less than FREQ:START, then the start frequency is set to the stop frequency - frequency span. This command will accept MIN or MAX instead of a numeric parameter. See SCPI Syntax for more information.
Examples	SENS:FREQ:STOP 1000000 sense2:frequency:stop max
Query Syntax	SENSe<cnum>:FREQuency:STOP?
Return Type	Numeric
Default	Maximum frequency of the analyzer