SENSe:FREQuency

[SENSe<Ch>:]FREQuency...

This subsystem sets frequency-related parameters, especially the measurement and display ranges for the different sweep types, and controls the frequency-converting measurement modes (harmonic distortion, mixer mode, etc.).

The frequency ranges for the different instrument models are listed below:

	ZVA8	ZVA24	ZVA40	ZVA50	ZVA67
Start, Stop	300 kHz to 8 GHz	10 MHz to 25 GHz (the specified frequency range is 10 MHz to 24 GHz; see data sheet)	10 MHz to 40 GHz	10 MHz to 50 GHz	10 MHz to 67 GHz
Center	> 300 kHz to < 8 GHz	> 10 MHz to < 25 GHz	> 10 MHz to < 40 GHz	> 10 MHz to < 50 GHz	> 10 MHz to < 67 GHz
Span	10 mHz to 7.9997 GHz	10 mHz to 24.99 GHz	10 mHz to 39.99 GHz	10 mHz to 49.99 GHz	10 mHz to 66.99 GHz

Use SYSTem:FREQuency? MINimum | MAXimum. to query the frequency range of your analyzer.

Command tree: [SENSe<Ch>:]FREQuency

:AWReceiver

:DEVice

:HARMonic (commands for harmonic distortion measurement)

:MIXer...(commands for mixer measurement)

:CW|FIXed

:IMODulation (commands for intermodulation measurement)

:OFFSet

Note: For a frequency sweep the range can be defined alternatively by a combination of Start/Stop frequencies or a Center frequency and Span. In fixed frequency mode (power sweep or Time/CW Mode; see [SENSe<Chn>:]FUNCtion[:ON]) the measurement frequency is set by means of [SENSe<Ch>:]FREQuency:CW|FIXed.

[SENSe<Ch>:]FREQuency:CENTer <center_frequency>

Defines the center of the measurement and display range for a frequency sweep.

<Ch>	Channel number. If unspecified the numeric suffix is set to 1.
<center_frequency>	Center frequency of the sweep.
Range [def. unit]	Depending on the instrument model [Hz]. The increment (parameters UP or DOWN) is 0.1 kHz.
*RST value	Center of the analyzer's maximum frequency range: (fMIN + fMAX)/2
SCPI, Command Types	Confirmed, command or query.
Example:	FUNC "XFR:POW:RAT B1, A2" Activate a frequency sweep and select the ratio B1/A2 as measured parameter for channel and trace no. 1. `SYST:FREQ? MIN; :SYST:FREQ? MAX` `Query the frequency range of the analyzer.` `FREQ:CENT 100MHz` Set center frequency to 100 MHz. `FREQ:SPAN 50000` Set frequency span to 50 kHz.

The measurement range defined by means of the center frequency and the current span ([SENSe<Ch>:]FREQuency:SPAN) must not exceed the allowed frequency range of the analyzer. If necessary, the span is reduced to min (Center – fMIN, fMAX – Center).

[SENSe<Ch>:]FREQuency:CONVersion
FUNDamental | HARMonic | SHARmonic | THARmonic | MIXer | VMIXer

Enables the measurement of a harmonic or the fundamental signal for channel <Ch>.

Enabling a harmonics measurement also resets the measured quantity; see program example below.

<Ch>	Channel number.
FUNDamental	Measurement of the fundamental signal (no frequency-converting mode).
HARMonic	Harmonics measurement. The order of the measured harmonic, the source port, and the receive port must be selected using the [SENSe<Ch>:]FREQuency:CONVersion:HARMonic... commands; see example below.
SHARmonic \| THARmonic	Measurement of the 2nd or 3rd harmonic with source port 1 and receive port 2. These parameters have been introduced for compatibilty with the ZVR. While they are active, a query returns HARM.
MIXer \| VMIXer	Scalar or vector mixer mode. Both mixer modes are configured using the [SENSe<Ch>:]FREQuency:CONVersion:MIXer... commands.
*RST value	FUNDamental
SCPI, Command Types	Device-specific, command or query. Returned values: FUND or HARM.
Example:	RST; FREQ:STAR 0.5E+9; STOP 1E+9 Reset the analyzer (activating a frequency sweep) and set the sweep range between 1 GHz and 1.1 GHz. FREQ:CONV:HARM:ORD 4; SPOR 1; RPOR 2 Configure a 4th harmonic measurement with source port 1 and receive port 2. The measurement is still not enabled. FREQ:CONV HARM Enable the configured harmonic measurement. CALC:PAR:MEAS? "TRC1" Query the measured quantity. The analyzer measures the wave quantity b2, the response is 'B2D1SAM'. FREQ:CONV:HARM:RELative ON Enable the relative harmonic measurement, creating a new channel and a new trace Trc2. CALC2:PAR:MEAS? "TRC2" Query the measured quantity in the new channel no. 2. The analyzer still measures the wave quantity b2, the response is 'B2D1SAM'. CALC2:MATH:STAT? Check whether the active trace in channel no. 2 (i.e. Trc2)* is a mathematical trace: the response is 1.

[SENSe<Ch>:]FREQuency:CONVersion:ARBitrary
<numerator>, <denominator>, <offset>, CW | FIXed | SWEep

Defines the receiver frequency for frequency-converting measurements. The receiver frequency is either a range (for frequency sweeps) or a CW frequency (for power, time and CW Mode sweeps). The receiver frequency is valid for all ports.

The frequency formula is applied even if the analyzer returns an error message, because the frequency is outside the allowed range.

<Ch>	Channel number.
<numerator> <denominator> <offset>	Parameters of the frequency formula. The receiver frequency fr is calculated according to fr = <numerator>/<denominator>fb. + <offset> where fb represents the sweep range (for frequency sweeps, parameter SWEep). For power, time and CW Mode* sweeps (parameters CW or FIXed), fb = 0. The conversion formula for fr is ZVR-compatible but differs from manual control where the ratio <numerator>/<denominator> also multiplies the <offset>.
Range [def. unit]	The converted frequency or frequency range must be within the analyzer's frequency range, depending on the instrument model [Hz]. In addition the following restrictions apply: <numerator> – Values are rounded to positive or negative integer numbers; zero is not allowed [1] <denominator> – Values are rounded to positive integer numbers [1] <offset> – Values are rounded to (positive or negative) multiples of 1 Hz [Hz].
*RST value	The default frequency/frequency range corresponds to the sweep range or CW frequency of the analyzer, i.e. <numerator> = <denominator> = 1 <offset> = 0 Hz
Sweep type Parameters	SWEep – A frequency sweep is active, the command defines a frequency range. CW \| FIXed – A power, time or CW Mode sweeps is active, the command defines a fixed frequency.
*RST value	SWEep
SCPI, Command Types	Device-specific, command or query.
Example:	*RST; FREQ:STAR 1E+9; STOP 1.1E+9 Reset the analyzer (activating a frequency sweep) and set the sweep range between 1 GHz and 1.1 GHz. SENS:FREQ:CONV:ARB 2, 1, 1E+9, SWE Convert the receiver frequency to the range between 3 GHz and 3.2 GHz.

[SENSe<Ch>:]FREQuency:CONVersion:ARBitrary:PMETer<Mtr>
<numerator>, <denominator>, <offset>, CW | FIXed | SWEep

The frequency formula is applied even if the analyzer returns an error message, because the frequency is outside the allowed range.

<Ch>	Channel number.
<Mtr>	Power meter number
<numerator> <denominator> <offset>	Parameters of the frequency formula. The receiver frequency fr is calculated according to fr = <numerator>/<denominator>fb. + <offset> where fb represents the sweep range (for frequency sweeps, parameter SWEep). For power, time and CW Mode* sweeps (parameters CW or FIXed), fb = 0. The conversion formula for fr is ZVR-compatible but differs from manual control where the ratio <numerator>/<denominator> also multiplies the <offset>.
Range [def. unit]	The converted frequency or frequency range must be within the power meter's receive frequency range [Hz]. In addition the following restrictions apply: <numerator> – Values are rounded to positive or negative integer numbers; zero is not allowed [1] <denominator> – Values are rounded to positive integer numbers [1] <offset> – Values are rounded to (positive or negative) multiples of 1 Hz [Hz].
*RST value	The default frequency/frequency range corresponds to the sweep range or CW frequency of the analyzer, i.e. <numerator> = <denominator> = 1 <offset> = 0 Hz
Sweep type Parameters	SWEep – A frequency sweep is active, the command defines a frequency range. CW \| FIXed – A power, time or CW Mode sweeps is active, the command defines a fixed frequency.
*RST value	SWEep
SCPI, Command Types	Device-specific, command or query.
Example:	*RST; FREQ:STAR 1E+9; STOP 1.1E+9 Reset the analyzer (activating a frequency sweep) and set the sweep range between 1 GHz and 1.1 GHz. SYST:COMM:RDEV:PMET1:DEF 'USB Power Meter', 'NRP-Z55', 'usb', '100045' Configure an R&S NRP power meter as external power meter no. 1, assigning the name USB Power Meter and an serial number 100045. SENS:FREQ:CONV:ARB:PMET 2, 1, 1E+9, SWE Convert the receiver frequency to the range between 3 GHz and 3.2 GHz.

[SENSe<Ch>:]FREQuency:CONVersion:AWReceiver[:STATe] <Boolean>

Qualifies whether a-waves (outgoing waves) are measured at the source or at the receiver frequency. The setting is relevant for all frequency-converting measurements.

<Ch>	Channel number.
<Boolean>	OFF - Measurement at source frequency ON - Measurement at receiver frequency
*RST value	OFF
SCPI, Command Types	Device-specific, command or query.
Example:	FREQ:CONV:AWR ON Measure a waves at the receiver frequency.

[SENSe<Ch>:]FREQuency:CONVersion:DEVice:MODE RILI | RILE

Selects the test setup (internal or external sources) for the frequency converter measurement (with option ZVA-K8, Converter Control).

<Ch>	Channel number. This suffix is ignored because the device mode is a global setting.
Parameters	RILI - Measurement at source frequency RILE - Measurement at receiver frequency
*RST value	RILI
SCPI, Command Types	Device-specific, command or query.
Example:	FREQ:CONV:DEV:NAME 'ZVA-Z110' Select frequency converter type R&S ZVA-Z110. SYST:COMM:RDEV:GEN1:DEF 'Ext. Gen. 1', 'SME02', 'gpib0', '21' Configure an R&S SME02 generator as external generator no. 1, assigning the name Ext. Gen. 1 and a GPIB address 21. FREQ:CONV:DEV:MODE RILE Measure a waves at the receiver frequency.

[SENSe<Ch>:]FREQuency:CONVersion:DEVice:NAME '<Converter Type>'

Selects the frequency converter type for enhanced frequency-converting measurements (with option ZVA-K8, Converter Control).

<Ch>	Channel number. This suffix is ignored because the converter type is a global setting.
'<Converter Type>'	'ZVA-Z110' - Frequency converter R&S ZVA-Z110 '' - No frequency converter selected
*RST value	OFF
SCPI, Command Types	Device-specific, command or query.
Example:	See [SENSe<Ch>:]FREQuency:CONVersion:DEVice:MODE

[SENSe<Ch>:]FREQuency:CONVersion:DEVice:PCOefficient<Port> <C0>, <C1>, <C2>, <C3>

Defines power coefficients for frequency converters R&S ZVA-ZxxxE.

<Ch>	Channel number. This suffix is ignored because converter settings are global.
<Port>	NWA port number
<C0>, <C1>, <C2>, C3>	Coefficient of order 0, 1, 2, and 3.
Range [def. unit]	-500 to +500 [–].
*RST value	Depending on the individual converter
SCPI, Command Types	Device-specific, command or query.
Example:	`See [SENSe<Ch>:]FREQuency:CONVersion:DEVice:PCOefficient:DEFault`

[SENSe<Ch>:]FREQuency:CONVersion:DEVice:PCOefficient<Port>:DEFault <Boolean>

Enables or disables default power coefficients for frequency converters R&S ZVA-ZxxxE.

<Ch>	Channel number. This suffix is ignored because converter settings are global.
<Port>	NWA port number. This suffix is ignored because the command affects all ports.
<Boolean>	ON - Use default power coefficients OFF - Use power coefficients defined via [SENSe<Ch>:]FREQuency:CONVersion:DEVice:PCOefficient<Port>
*RST value	ON
SCPI, Command Types	Device-specific, command or query.
Example:	FREQ:CONV:DEV:NAME 'ZVA-Z110E' Select frequency converter type R&S ZVA-Z110E. FREQ:CONV:DEV:PCO3:DEF OFF FREQ:CONV:DEV:PCO3 0.5479,0.03426,-0.002866,2.124E-006 Re-define the power coefficients for port 3 according to the connected converter unit. FREQ:CONV:DEV:PCO3:DEF ON Use default power coefficients for all ports. FREQ:CONV:DEV:PCO3? Query the default power coefficients for port 3. The analyzer returns the predefined values (generally different from the coefficients entered above).

[SENSe<Ch>:]FREQuency:CONVersion:HARMonic:ORDer <order>

Selects the order of the harmonic measured if a harmonic measurement is enabled ([SENSe<Ch>:]FREQuency:CONVersion HARMonic).

<Ch>	Channel number.
<order>	Order of the harmonic, integer multiple of the fundamental frequency measured.
Range [def. unit]	2 to 100 [–].
*RST value	2
SCPI, Command Types	Device-specific, command or query.
Example:	`See [SENSe<Ch>:]FREQuency:CONVersion`

[SENSe<Ch>:]FREQuency:CONVersion:HARMonic:RELative <Boolean>

Enables or disables the relative harmonic measurement where the harmonic is divided by the fundamental wave.

With enabled relative measurement the analyzer creates a new channel and a new (mathematical) trace; see program example for [SENSe<Ch>:]FREQuency:CONVersion.

<Ch>	Channel number.
<Boolean>	Enable (ON) or disable (OFF) the relative harmonic measurement.
*RST value	OFF
SCPI, Command Types	Device-specific, command or query.
Example:	`See [SENSe<Ch>:]FREQuency:CONVersion`

[SENSe<Ch>:]FREQuency:CONVersion:HARMonic:RPORt <port_no>

Selects the receive port for the harmonic measurement.

<Ch>	Channel number.
<port_no>	Integer port number.
Range [def. unit]	Depending on the analyzer model [–].
*RST value	2
SCPI, Command Types	Device-specific, command or query.
Example:	`See [SENSe<Ch>:]FREQuency:CONVersion`

[SENSe<Ch>:]FREQuency:CONVersion:HARMonic:SPORt <port_no> | <ext. gen. no.>

Selects the source port for the harmonic measurement.

<Ch>	Channel number.
<port_no>	Positive integer analyzer port number.
<ext. gen. no.>	Negative integer external generator number (the minus sign serves as an identifier for external generators; –1 denotes the external generator no. 1)
Range [def. unit]	Depending on the analyzer model and the number of external generators [–].
*RST value	1
SCPI, Command Types	Device-specific, command or query.
Example:	`See [SENSe<Ch>:]FREQuency:CONVersion`