RFmx SpecAn Properties

RFmxSpecAn Properties

  • Updated2024-04-10
  • 78 minute(s) read

RFmxSpecAn Properties

Use the RFmxSpecAn properties to access options for configuring and fetching measurements.

Property Description
Selector String

Specifies the selector string used to access all subsequent channel-based properties in this instance of the property node. Details

Selected Ports

Specifies the instrument port to be configured to acquire a signal. Use RFmxInstr Get Available Ports VI to get the valid port names. Details

Center Frequency (Hz)

Specifies the expected carrier frequency of the RF signal that needs to be acquired. This value is expressed in Hz. The signal analyzer tunes to this frequency. Details

Reference Level

Specifies the reference level which represents the maximum expected power of the RF input signal. This value is configured in dBm for RF devices and as Vpk-pk for baseband devices. Details

External Attenuation (dB)

Specifies the attenuation of a switch (or cable) connected to the RF IN connector of the signal analyzer. This value is expressed in dB. For more information about attenuation, refer to the Attenuation and Signal Levels topic for your device in the NI RF Vector Signal Analyzers Help. Details

Reference Level Headroom

Specifies the margin RFmx adds to the Reference Level property. The margin avoids clipping and overflow warnings if the input signal exceeds the configured reference level. Details

Trigger:Type

Specifies the trigger type. Details

Trigger:Digital Edge:Source

Specifies the source terminal for the digital edge trigger. This property is used only when you set the Trigger Type property to Digital Edge. Details

Trigger:Digital Edge:Edge

Specifies the active edge for the trigger. This property is used only when you set the Trigger Type property to Digital Edge. Details

Trigger:IQ Power Edge:Source

Specifies the channel from which the device monitors the trigger. This property is used only when you set the Trigger Type property to IQ Power Edge. Details

Trigger:IQ Power Edge:Level (dB or dBm)

Specifies the power level at which the device triggers. This value is expressed in dB when you set the IQ Power Edge Level Type property to Relative and is expressed in dBm when you set the IQ Power Edge Level Type property to Absolute. The device asserts the trigger when the signal exceeds the level specified by the value of this property, taking into consideration the specified slope. This property is used only when you set the Trigger Type property to IQ Power Edge. Details

Trigger:IQ Power Edge:Level Type

Specifies the reference for the IQ Power Edge Level property. The IQ Power Edge Level Type property is used only when you set the Trigger Type property to IQ Power Edge. Details

Trigger:IQ Power Edge:Slope

Specifies whether the device asserts the trigger when the signal power is rising or when it is falling. The device asserts the trigger when the signal power exceeds the specified level with the slope you specify. This property is used only when you set the Trigger Type property to IQ Power Edge. Details

Trigger:Delay (s)

Specifies the trigger delay time. This value is expressed in seconds. Details

Trigger:Minimum Quiet Time:Mode

Specifies whether the measurement computes the minimum quiet time used for triggering. Details

Trigger:Minimum Quiet Time:Duration (s)

Specifies the time duration for which the signal must be quiet before the signal analyzer arms the I/Q power edge trigger. This value is expressed in seconds. If you set the IQ Power Edge Slope property to Rising Slope, the signal is quiet below the trigger level. If you set the IQ Power Edge Slope property to Falling Slope, the signal is quiet above the trigger level. Details

List:Number of Steps

Specifies the number of active steps in a list. Details

List:Step:Timer Duration (s)

Specifies the duration of a given list step. This value is expressed in seconds. Details

List:Step:Timer Offset (s)

Specifies the time offset from the start of the step for which the measurements are computed. This value is expressed in seconds. This property is valid only when you set the Digital Edge Source property to TimerEvent. Details

ACP:Measurement Enabled

Specifies whether to enable the ACP measurement. Details

ACP:Carrier:Number of Carriers

Specifies the number of carriers. Details

ACP:Carrier:Mode

Specifies whether to consider the carrier power as part of the total carrier power measurement. Details

ACP:Carrier:Frequency (Hz)

Specifies the center frequency of the carrier, relative to the RF center frequency. This value is expressed in Hz.

Use "carrier<n>" as the selector string to configure or read this property. Details

ACP:Carrier:Integration Bandwidth (Hz)

Specifies the frequency range over which the measurement integrates the carrier power. This value is expressed in Hz.

Use "carrier<n>" as the selector string to configure or read this property. Details

ACP:Carrier:RRC Filter:Enabled

Specifies whether to apply the root-raised-cosine (RRC) filter on the acquired carrier channel before measuring the carrier channel power.

Use "carrier<n>" as the selector string to configure or read this property. Details

ACP:Carrier:RRC Filter:Alpha

Specifies the roll-off factor for the root-raised-cosine (RRC) filter.

Use "carrier<n>" as the selector string to configure or read this property. Details

ACP:Offset:Number of Offsets

Specifies the number of offset channels.

You do not need to use a selector string to configure or read this property for the default signal instance. Refer to the Selector Strings topic for information about the string syntax for named signals. Details

ACP:Offset:Enabled

Specifies whether to enable the offset channel for ACP measurement.

Use "offset<n>" as the selector string to configure or read this property. Details

ACP:Offset:Frequency (Hz)

Specifies the center or edge frequency of the offset channel, relative to the center frequency of the closest carrier as determined by the ACP Offset Freq Definition property. This value is expressed in Hz. The sign of offset frequency is ignored and the ACP Offset Sideband property determines whether the upper, lower, or both offsets are measured.

Use "offset<n>" as the selector string to configure or read this property. Details

ACP:Offset:Sideband

Specifies whether the offset channel is present on one side, or on both sides of the carrier.

Use "offset<n>" as the selector string to configure or read this property. Details

ACP:Offset:Power Reference:Carrier

Specifies the carrier to be used as power reference to measure the offset channel relative power. The offset channel power is measured only if you set the ACP Carrier Mode property of the reference carrier to Active.

Use "offset<n>" as the selector string to configure or read this property. Details

ACP:Offset:Power Reference:Specific

Specifies the index of the carrier to be used as the reference carrier. The power measured in this carrier is used as the power reference for measuring the offset channel relative power, when you set the ACP Offset Pwr Ref Carrier property to Specific.

Use "offset<n>" as the selector string to configure or read this property. Details

ACP:Offset:Integration Bandwidth (Hz)

Specifies the frequency range, over which the measurement integrates the offset channel power. This value is expressed in Hz.

Use "offset<n>" as the selector string to configure or read this property. Details

ACP:Offset:Relative Attenuation (dB)

Specifies the attenuation relative to the external attenuation specified by the External Attenuation property. This value is expressed in dB. Use the ACP Offset Rel Attn property to compensate for variations in external attenuation when the offset channels are spread wide in frequency.

Use "offset<n>" as the selector string to configure or read this property. Details

ACP:Offset:RRC Filter:Enabled

Specifies whether to apply the root-raised-cosine (RRC) filter on the acquired offset channel before measuring the offset channel power.

Use "offset<n>" as the selector string to configure or read this property. Details

ACP:Offset:RRC Filter:Alpha

Specifies the roll-off factor for the root-raised-cosine (RRC) filter.

Use "offset<n>" as the selector string to configure or read this property. Details

ACP:Offset:Frequency Definition

Specifies the offset frequency definition used to specify the ACP Offset Freq property.

Use "offset<n>" as the selector string to configure or read this property. Details

ACP:RBW Filter:Auto Bandwidth

Specifies whether the measurement computes the resolution bandwidth (RBW). Details

ACP:RBW Filter:Bandwidth (Hz)

Specifies the bandwidth of the resolution bandwidth (RBW) filter used to sweep the acquired signal, when you set the ACP RBW Auto property to False. This value is expressed in Hz. Details

ACP:RBW Filter:Type

Specifies the shape of the digital resolution bandwidth (RBW) filter. Details

ACP:RBW Filter:Bandwidth Definition

Specifies the bandwidth definition which you use to specify the value of the ACP RBW property. Details

ACP:Sweep Time:Auto

Specifies whether the measurement computes the sweep time. Details

ACP:Sweep Time:Interval (s)

Specifies the sweep time when you set the ACP Sweep Time Auto property to False. This value is expressed in seconds. Details

ACP:Detector:Type

Specifies the type of detector to be used. Details

ACP:Detector:Points

Specifies the number of trace points after the detector is applied. Details

ACP:Power Units

Specifies the units for the absolute power. Details

ACP:Measurement Method

Specifies the method for performing the ACP measurement. Details

ACP:Noise Calibration:Mode

Specifies whether the noise calibration and measurement is performed manually by the user or automatically by RFmx. Refer to the measurement guidelines section in the Noise Compensation Algorithm topic for more information. Details

ACP:Noise Calibration:Averaging:Auto

Specifies whether RFmx automatically computes the averaging count used for instrument noise calibration. Details

ACP:Noise Calibration:Averaging:Count

Specifies the averaging count used for noise calibration when you set the ACP Noise Cal Averaging Auto property to False. Details

ACP:Noise Compensation:Enabled

Specifies whether RFmx compensates for the instrument noise while performing the measurement when you set the ACP Noise Cal Mode property to Auto, or when you set the ACP Noise Cal Mode property to Manual and ACP Meas Mode to Measure. Refer to the Noise Compensation Algorithm topic for more information. Details

ACP:Noise Compensation:Type

Specifies the noise compensation type. Refer to the Noise Compensation Algorithm topic for more information. Details

ACP:Averaging:Enabled

Specifies whether to enable averaging for the ACP measurement. Details

ACP:Averaging:Count

Specifies the number of acquisitions used for averaging when you set the ACP Averaging Enabled property to True. Details

ACP:Averaging:Type

Specifies the averaging type for averaging multiple spectrum acquisitions. The averaged spectrum is used for ACP measurement. Details

ACP:Measurement Mode

Specifies whether the measurement calibrates the noise floor of analyzer or performs the ACP measurement. Refer to the measurement guidelines section in the Noise Compensation Algorithm topic for more information. Details

ACP:FFT:Window

Specifies the FFT window type to use to reduce spectral leakage. Details

ACP:FFT:Padding

Specifies the factor by which the time-domain waveform is zero-padded before fast Fourier transform (FFT). The FFT size is given by the following formula:

waveform size * padding

This property is used only when the acquisition span is less than the device instantaneous bandwidth of the device. Details

ACP:FFT:Overlap Mode

Specifies the overlap mode when you set the ACP Meas Method property to Sequential FFT. Details

ACP:FFT:Overlap (%)

Specifies the samples to overlap between the consecutive chunks as a percentage of the ACP Sequential FFT Size property when you set the ACP Meas Method property to Sequential FFT and the ACP FFT Overlap Mode property to User Defined. This value is expressed as a percentage. Details

ACP:Advanced:IF Output Power Offset Auto

Specifies whether the measurement computes an IF output power level offset for the offset channels to improve the dynamic range of the ACP measurement. This property is used only if you set the ACP Meas Method property to Dynamic Range. Details

ACP:Advanced:Near IF Output Power Offset (dB)

Specifies the offset by which to adjust the IF output power level for offset channels that are near to the carrier channel to improve the dynamic range. This value is expressed in dB. This property is used only if you set the ACP Meas Method property to Dynamic Range and set the ACP IF Output Power Offset Auto property to False. Details

ACP:Advanced:Far IF Output Power Offset (dB)

Specifies the offset by which to adjust the IF output power level for offset channels that are far from the carrier channel to improve the dynamic range. This value is expressed in dB. This property is used only if you set the ACP Meas Method property to Dynamic Range and set the ACP IF Output Power Offset Auto property to False. Details

ACP:Advanced:Sequential FFT Size

Specifies the FFT size when you set the ACP Meas Method property to Sequential FFT. Details

ACP:Amplitude Correction Type

Specifies whether the amplitude of the frequency bins, used in the measurement, is corrected for external attenuation at the RF center frequency, or at the individual frequency bins. Use the RFmxInstr Configure External Attenuation Table VI to configure the external attenuation table. Details

ACP:All Traces Enabled

Specifies whether to enable the traces to be stored and retrieved after performing the ACP measurement. Details

ACP:Number of Analysis Threads

Specifies the maximum number of threads used for parallelism for adjacent channel power (ACP) measurement. Details

ACP:Results:Total Carrier Power (dBm or dBm/Hz)

Returns the total integrated power, in dBm, of all the active carriers measured when you set the ACP Power Units property to dBm.

Returns the power spectral density, in dBm/Hz, based on the power in all the active carriers measured when you set the ACP Power Units property to dBm/Hz. Details

ACP:Results:Frequency Resolution (Hz)

Returns the frequency bin spacing of the spectrum acquired by the measurement. This value is expressed in Hz. Details

ACP:Results:Carrier:Frequency (Hz)

Returns the center frequency of the carrier relative to the Center Frequency property. This value is expressed in Hz.

Use "carrier<n>" as the selector string to read this result. Details

ACP:Results:Carrier:Integration Bandwidth (Hz)

Returns the frequency range, over which the measurement integrates the carrier power. This value is expressed in Hz.

Use "carrier<n>" as the selector string to read this result. Details

ACP:Results:Carrier:Absolute Power (dBm or dBm/Hz)

Returns the measured carrier power.

Use "carrier<n>" as the selector string to read this result. Details

ACP:Results:Carrier:Total Relative Power (dB)

Returns the carrier power measured relative to the total carrier power of all active carriers. This value is expressed in dB.

Use "carrier<n>" as the selector string to read this result. Details

ACP:Results:Lower Offset:Frequency Reference Carrier

Returns the index of the carrier used as a reference to define the center frequency of the lower (negative) offset channel. Lower offset channels are channels that are to the left of the carrier.

Use "offset<n>" as the selector string to read this result. Details

ACP:Results:Lower Offset:Frequency (Hz)

Returns the center frequency of the lower offset channel relative to the center frequency of the closest carrier. The offset frequency has a negative value.

Use "offset<n>" as the selector string to read this result. Details

ACP:Results:Lower Offset:Integration Bandwidth (Hz)

Returns the integration bandwidth used to measure the power in the lower offset channel.

Use "offset<n>" as the selector string to read this result. Details

ACP:Results:Lower Offset:Power Reference Carrier (-1 All)

Returns the index of the carrier used as the power reference to measure the lower (negative) offset channel relative power. Details

ACP:Results:Lower Offset:Absolute Power (dBm or dBm/Hz)

Returns the lower offset channel power. Details

ACP:Results:Lower Offset:Relative Power (dB)

Returns the lower offset channel power measured relative to the integrated power of the power reference carrier. This value is expressed in dB.

Use "offset<n>" as the selector string to read this result. Details

ACP:Results:Upper Offset:Frequency Reference Carrier

Returns the index of the carrier used as a reference to define the center frequency of the upper (positive) offset channel. Upper offset channels are channels that are to the right of the carrier.

Use "offset<n>" as the selector string to read this result. Details

ACP:Results:Upper Offset:Frequency (Hz)

Returns the center frequency of the upper offset channel relative to the center frequency of the closest carrier. The offset frequency has a positive value.

Use "offset<n>" as the selector string to read this result. Details

ACP:Results:Upper Offset:Integration Bandwidth (Hz)

Returns the integration bandwidth used to measure the power in the upper offset channel.

Use "offset<n>" as the selector string to read this result. Details

ACP:Results:Upper Offset:Power Reference Carrier (-1 All)

Returns the index of the carrier used as the power reference to measure the upper (positive) offset channel relative power. Details

ACP:Results:Upper Offset:Absolute Power (dBm or dBm/Hz)

Returns the upper offset channel power. Details

ACP:Results:Upper Offset:Relative Power (dB)

Returns the upper offset channel power measured relative to the integrated power of the power reference carrier. This value is expressed in dB.

Use "offset<n>" as the selector string to read this result. Details

CCDF:Measurement Enabled

Specifies whether to enable the CCDF measurement. Details

CCDF:Measurement Interval (s)

Specifies the acquisition time for the CCDF measurement. This value is expressed in seconds. Details

CCDF:Number of Records

Specifies the number of acquisitions used for the CCDF measurement. Details

CCDF:RBW Filter:Bandwidth (Hz)

Specifies the bandwidth of the resolution bandwidth (RBW) filter used to measure the signal. This value is expressed in Hz. Details

CCDF:RBW Filter:Type

Specifies the shape of the digital resolution bandwidth (RBW) filter. Details

CCDF:RBW Filter:RRC Alpha

Specifies the roll-off factor for the root-raised-cosine (RRC) filter. Details

CCDF:Threshold:Enabled

Specifies whether to enable thresholding of the acquired samples to be used for the CCDF measurement. Details

CCDF:Threshold:Type

Specifies the reference for the power level used for thresholding. Details

CCDF:Threshold:Level (dB or dBm)

Specifies either the relative or absolute threshold power level based on the value of the CCDF Threshold Type property. Details

CCDF:All Traces Enabled

Specifies whether to enable the traces to be stored and retrieved after performing the CCDF measurement. Details

CCDF:Number of Analysis Threads

Specifies the maximum number of threads used for parallelism for CCDF measurement. Details

CCDF:Results:Mean Power (dBm)

Returns the average power of all the samples. This value is expressed in dBm. If you set the CCDF Threshold Enabled property to True, samples above the threshold are measured. Details

CCDF:Results:Mean Power Percentile (%)

Returns the percentage of samples that have more power than the mean power. Details

CCDF:Results:10 % Power (dB)

Returns the power above the mean power, over which 10% of the total samples in the signal are present. This value is expressed in dB. Details

CCDF:Results:1 % Power (dB)

Returns the power above the mean power, over which 1% of the total samples in the signal are present. This value is expressed in dB. Details

CCDF:Results:0.1 % Power (dB)

Returns the power above the mean power, over which 0.1% of the total samples in the signal are present. This value is expressed in dB. Details

CCDF:Results:0.01 % Power (dB)

Returns the power above the mean power, over which 0.01% of the total samples in the signal are present. This value is expressed in dB. Details

CCDF:Results:0.001 % Power (dB)

Returns the power above the mean power, over which 0.001% of the total samples in the signal are present. This value is expressed in dB. Details

CCDF:Results:0.0001 % Power (dB)

Returns the power above the mean power, over which 0.0001% of the total samples in the signal are present. This value is expressed in dB. Details

CCDF:Results:Peak Power (dB)

Returns the peak power of the acquired signal, relative to the mean power. Details

CCDF:Results:Measured Samples Count

Returns the total number of samples measured. The total number of samples includes only the samples above the threshold, when you set the CCDF Threshold Enabled property to True. Details

CHP:Measurement Enabled

Specifies whether to enable the CHP measurement. Details

CHP:Span (Hz)

Specifies the frequency range around the center frequency, to acquire for the measurement. This value is expressed in Hz. Details

CHP:Carrier:Number of Carriers

Specifies the number of carriers.

You do not need to use a selector string to configure or read this property for the default signal instance. Refer to the Selector Strings topic for information about the string syntax for named signals. Details

CHP:Carrier:Frequency (Hz)

Specifies the center frequency of the carrier, relative to the RF center frequency. This value is expressed in Hz.

Use "carrier<n>" as the selector string to configure or read this property. Details

CHP:Carrier:Integration Bandwidth (Hz)

Specifies the frequency range, over which the measurement integrates the power. This value is expressed in Hz. Details

CHP:Carrier:RRC Filter:Enabled

Specifies whether to apply the root-raised-cosine (RRC) filter on the acquired channel before measuring the channel power. Details

CHP:Carrier:RRC Filter:Alpha

Specifies the roll-off factor of the root-raised-cosine (RRC) filter. Details

CHP:RBW Filter:Auto Bandwidth

Specifies whether the measurement computes the resolution bandwidth (RBW). Details

CHP:RBW Filter:Bandwidth (Hz)

Specifies the bandwidth of the resolution bandwidth (RBW) filter used to sweep the acquired signal, when you set the CHP RBW Auto property to False. This value is expressed in Hz. Details

CHP:RBW Filter:Type

Specifies the shape of the digital resolution bandwidth (RBW) filter. Details

CHP:RBW Filter:Bandwidth Definition

Specifies the bandwidth definition that you use to specify the value of the CHP RBW property. Details

CHP:Sweep Time:Auto

Specifies whether the measurement computes the sweep time. Details

CHP:Sweep Time:Interval (s)

Specifies the sweep time when you set the CHP Sweep Time Auto property to False. This value is expressed in seconds. Details

CHP:Detector:Type

Specifies the type of detector to be used. Details

CHP:Detector:Points

Specifies the number of trace points after the detector is applied. Details

CHP:Noise Calibration:Mode

Specifies whether the noise calibration and measurement is performed manually by the user or automatically by RFmx. Refer to the measurement guidelines section in the Noise Compensation Algorithm topic for more information. Details

CHP:Noise Calibration:Averaging:Auto

Specifies whether RFmx automatically computes the averaging count used for instrument noise calibration. Details

CHP:Noise Calibration:Averaging:Count

Specifies the averaging count used for noise calibration when you set the CHP Noise Cal Averaging Auto property to False. Details

CHP:Noise Compensation:Enabled

Specifies whether RFmx compensates for the instrument noise when performing the measurement. To compensate for instrument noise when performing a CHP measurement, set the CHP Noise Cal Mode property to Auto, or set the CHP Noise Cal Mode property to Manual and CHP Meas Mode property to Measure. Refer to the measurement guidelines section in the Noise Compensation Algorithm topic for more information. Details

CHP:Noise Compensation:Type

Specifies the noise compensation type. Refer to the Noise Compensation Algorithm topic for more information. Details

CHP:Averaging:Enabled

Specifies whether to enable averaging for the CHP measurement. Details

CHP:Averaging:Count

Specifies the number of acquisitions used for averaging when you set the CHP Averaging Enabled property to True. Details

CHP:Averaging:Type

Specifies the averaging type for averaging multiple spectrum acquisitions. The averaged spectrum is used for CHP measurement. Details

CHP:Measurement Mode

Specifies whether the measurement calibrates the noise floor of analyzer or performs the CHP measurement. Refer to the measurement guidelines section in the Noise Compensation Algorithm topic for more information. Details

CHP:FFT:Window

Specifies the FFT window type to use to reduce spectral leakage. Details

CHP:FFT:Padding

Specifies the factor by which the time-domain waveform is zero-padded before fast Fourier transform (FFT). The FFT size is given by the following formula:

waveform size * padding

This property is used only when the acquisition span is less than the device instantaneous bandwidth of the device. Details

CHP:Amplitude Correction Type

Specifies whether the amplitude of the frequency bins, used in the measurement, is corrected for external attenuation at the RF center frequency, or at the individual frequency bins. Use the RFmxInstr Configure External Attenuation Table VI to configure the external attenuation table. Details

CHP:All Traces Enabled

Specifies whether to enable the traces to be stored and retrieved after performing the CHP measurement. Details

CHP:Number of Analysis Threads

Specifies the maximum number of threads used for parallelism for CHP measurement. Details

CHP:Results:Total Carrier Power (dBm)

Returns the total integrated carrier power of all carriers, in dBm. Details

CHP:Results:Frequency Resolution (Hz)

Returns the frequency bin spacing of the spectrum acquired by the measurement. This value is expressed in Hz. Details

CHP:Results:Carrier:Frequency (Hz)

Returns the center frequency of the carrier relative to the Center Frequency property. This value is expressed in Hz. Details

CHP:Results:Carrier:Integration Bandwidth (Hz)

Returns the frequency range over which the measurement integrates the carrier power. This value is expressed in Hz. Details

CHP:Results:Carrier:Absolute Power (dBm)

Returns the carrier power measured in the integration bandwidth that you specify in the CHP Carrier IBW property. This value is expressed in dBm. Details

CHP:Results:Carrier:PSD (dBm/Hz)

Returns the power spectral density of the channel. This value is expressed in dBm/Hz. Details

CHP:Results:Carrier:Relative Power (dB)

Returns the carrier power measured relative to the total carrier power of all carriers. This value is expressed in dB. Details

FCnt:Measurement Enabled

Specifies whether to enable the FCnt measurement. Details

FCnt:Measurement Interval (s)

Specifies the acquisition time for the FCnt measurement. This value is expressed in seconds. Details

FCnt:RBW Filter:Bandwidth (Hz)

Specifies the bandwidth of the resolution bandwidth (RBW) filter used to measure the signal. This value is expressed in Hz. Details

FCnt:RBW Filter:Type

Specifies the shape of the digital resolution bandwidth (RBW) filter. Details

FCnt:RBW Filter:RRC Alpha

Specifies the roll-off factor for the root-raised-cosine (RRC) filter. Details

FCnt:Threshold:Enabled

Specifies whether to enable thresholding of the acquired samples to be used for the FCnt measurement. Details

FCnt:Threshold:Type

Specifies the reference for the power level used for thresholding. Details

FCnt:Threshold:Level (dB or dBm)

Specifies either the relative or absolute threshold power level based on the value of the FCnt Threshold Type property. Details

FCnt:Averaging:Enabled

Specifies whether to enable averaging for the FCnt measurement. Details

FCnt:Averaging:Count

Specifies the number of acquisitions used for averaging when you set the FCnt Averaging Enabled property to True. Details

FCnt:Averaging:Type

Specifies the averaging type for the FCnt measurement. The averaged instantaneous signal phase difference is used for the measurement. Details

FCnt:All Traces Enabled

Specifies whether to enable the traces to be stored and retrieved after performing the FCnt measurement. Details

FCnt:Number of Analysis Threads

Specifies the maximum number of threads used for parallelism for FCnt measurement. Details

FCnt:Results:Average Relative Frequency (Hz)

Returns the signal frequency relative to the RF center frequency. Only samples above the threshold are used when you set the FCnt Threshold Enabled property to True. Details

FCnt:Results:Average Absolute Frequency (Hz)

Returns the RF signal frequency. Only samples above the threshold are used when you set the FCnt Threshold Enabled property to True. Details

FCnt:Results:Mean Phase (deg)

Returns the net phase of the vector sum of the I/Q samples used for frequency measurement. Details

FCnt:Results:Allan Deviation (Hz)

Returns the two-sample deviation of the measured frequency. Details

Harm:Measurement Enabled

Specifies whether to enable the Harmonics measurement. Details

Harm:Fundamental:RBW Filter:Bandwidth (Hz)

Specifies the bandwidth of the resolution bandwidth (RBW) filter used to measure the fundamental signal. This value is expressed in Hz. Details

Harm:Fundamental:RBW Filter:Type

Specifies the shape of the digital resolution bandwidth (RBW) filter. Details

Harm:Fundamental:RBW Filter:Alpha

Specifies the roll-off factor for the root-raised-cosine (RRC) filter. Details

Harm:Fundamental:Measurement Interval (s)

Specifies the acquisition time for the Harmonics measurement of the fundamental signal. This value is expressed in seconds. Details

Harm:Number of Harmonics

Specifies the number of harmonics, including fundamental, to measure. Details

Harm:Auto Setup Enabled

Specifies whether to enable auto configuration of successive harmonics. Details

Harm:Harmonic:Enabled

Specifies whether to enable a particular harmonic for measurement. Only the enabled harmonics are used to measure the total harmonic distortion (THD). This property is not used if you set the Harm Harmonics Auto Setup Enabled to True.

Use "harmonic<n>" as the selector string to configure or read this property. Details

Harm:Harmonic:Order

Specifies the order of the harmonic. This property is not used if you set the Harm Harmonics Auto Setup Enabled to True.

Frequency of Nth order harmonic = N * (Frequency of fundamental)

Use "harmonic<n>" as the selector string to configure or read this property. Details

Harm:Harmonic:Bandwidth (Hz)

Specifies the resolution bandwidth for the harmonic. This property is not used if you set the Harm Harmonics Auto Setup Enabled to True. This value is expressed in Hz.

Use "harmonic<n>" as the selector string to configure or read this property. Details

Harm:Harmonic:Measurement Interval (s)

Specifies the acquisition time for the harmonic. This value is expressed in seconds. This property is not used if you set the Harm Harmonics Auto Setup Enabled to True.

Use "harmonic<n>" as the selector string to configure or read this property. Details

Harm:Measurement Method

Specifies the method used to perform the harmonics measurement. Details

Harm:Noise Compensation Enabled

Specifies whether to enable compensation of the average harmonic powers for inherent noise floor of the signal analyzer. Details

Harm:Averaging:Enabled

Specifies whether to enable averaging for the Harmonics measurement. Details

Harm:Averaging:Count

Specifies the number of acquisitions used for averaging when you set the Harm Averaging Enabled property to True. Details

Harm:Averaging:Type

Specifies the averaging type for the Harmonics measurement. The averaged power trace is used for the measurement. Details

Harm:All Traces Enabled

Specifies whether to enable the traces to be stored and retrieved after performing the Harmonics measurement. Details

Harm:Number of Analysis Threads

Specifies the maximum number of threads used for parallelism for Harmonics measurement. Details

Harm:Results:Total Harmonic Distortion (%)

Returns the total harmonics distortion (THD), measured as a percentage of the power in the fundamental signal. Details

Harm:Results:Average Fundamental Power (dBm)

Returns the average power measured at the fundamental frequency. This value is expressed in dBm. Details

Harm:Results:Fundamental Frequency (Hz)

Returns the frequency used as the fundamental frequency. This value is expressed in Hz. Details

Harm:Results:Harmonic:Average Absolute Power (dBm)

Returns the average absolute power measured at the harmonic specified by the selector string. This value is expressed in dBm.

Use "harmonic<n>" as the selector string to read this result. Details

Harm:Results:Harmonic:Average Relative Power (dB)

Returns the average power relative to the fundamental power measured at the harmonic specified by the selector string. This value is expressed in dB.

Use "harmonic<n>" as the selector string to read this result. Details

Harm:Results:Harmonic:Frequency (Hz)

Returns the RF frequency of the harmonic. This value is expressed in Hz.

Use "harmonic<n>" as the selector string to read this result. Details

Harm:Results:Harmonic:RBW (Hz)

Returns the resolution bandwidth (RBW) which is used by the harmonic measurement, for the harmonic specified by the selector string. This value is expressed in Hz.

Use "harmonic<n>" as the selector string to read this result. Details

OBW:Measurement Enabled

Specifies whether to enable OBW measurement. Details

OBW:Span (Hz)

Specifies the frequency range around the center frequency, to acquire for the measurement. This value is expressed in Hz. Details

OBW:Bandwidth Percentage (%)

Specifies the percentage of the total power that is contained in the OBW. Details

OBW:Power Units

Specifies the units for the absolute power. Details

OBW:RBW Filter:Auto Bandwidth

Specifies whether the measurement computes the resolution bandwidth (RBW). Details

OBW:RBW Filter:Bandwidth (Hz)

Specifies the bandwidth of the resolution bandwidth (RBW) filter used to sweep the acquired signal, when you set the OBW RBW Auto property to False. This value is expressed in Hz. Details

OBW:RBW Filter:Type

Specifies the shape of the digital resolution bandwidth (RBW) filter. Details

OBW:RBW Filter:Bandwidth Definition

Specifies the bandwidth definition that you use to specify the value of the OBW RBW property. Details

OBW:Sweep Time:Auto

Specifies whether the measurement computes the sweep time. Details

OBW:Sweep Time:Interval (s)

Specifies the sweep time when you set the OBW Sweep Time Auto property to False. This value is expressed in seconds. Details

OBW:Averaging:Enabled

Specifies whether to enable averaging for the OBW measurement. Details

OBW:Averaging:Count

Specifies the number of acquisitions used for averaging when you set the OBW Averaging Enabled property to True. Details

OBW:Averaging:Type

Specifies the averaging type for averaging multiple spectrum acquisitions. The averaged spectrum is used for OBW measurement. Details

OBW:FFT:Window

Specifies the FFT window type to use to reduce spectral leakage. Details

OBW:FFT:Padding

Specifies the factor by which the time-domain waveform is zero-padded before fast Fourier transform (FFT). The FFT size is given by the following formula:

waveform size * padding

This property is used only when the acquisition span is less than the device instantaneous bandwidth of the device. Details

OBW:Amplitude Correction Type

Specifies whether the amplitude of the frequency bins, used in the measurement, is corrected for external attenuation at the RF center frequency, or at the individual frequency bins. Use the RFmxInstr Configure External Attenuation Table VI to configure the external attenuation table. Details

OBW:All Traces Enabled

Specifies whether to enable the traces to be stored and retrieved after performing the OBW. Details

OBW:Number of Analysis Threads

Specifies the maximum number of threads used for parallelism for the OBW measurement. Details

OBW:Results:Occupied Bandwidth (Hz)

Returns the bandwidth that occupies the percentage of the total power of the signal that you specify in the OBW BW Percentage property. This value is expressed in Hz. Details

OBW:Results:Average Power (dBm or dBm/Hz)

Returns the total integrated power, in dBm, of the averaged spectrum acquired by the OBW measurement when you set the OBW Power Units property to dBm. The OBW Results Avg Pwr property returns the power spectral density, in dBm/Hz, when you set the OBW Power Units property to dBm/Hz. Details

OBW:Results:Start Frequency (Hz)

Returns the start frequency of the OBW. This value is expressed in Hz. Details

OBW:Results:Stop Frequency (Hz)

Returns the stop frequency of the OBW. This value is expressed in Hz. Details

OBW:Results:Frequency Resolution (Hz)

Returns the frequency bin spacing of the spectrum acquired by the OBW measurement. This value is expressed in Hz. Details

SEM:Measurement Enabled

Specifies whether to enable the SEM measurement. Details

SEM:Carrier:Number of Carriers

Specifies the number of carriers.

You do not need to use a selector string to configure or read this property for the default signal instance. Refer to the Selector Strings topic for information about the string syntax for named signals. Details

SEM:Carrier:Enabled

Specifies whether to consider the carrier power as part of the total carrier power measurement.

Use "carrier<n>" as the selector string to configure or read this property. Details

SEM:Carrier:Frequency (Hz)

Specifies the center frequency of the carrier, relative to the RF center frequency. This value is expressed in Hz.

Use "carrier<n>" as the selector string to configure or read this property. Details

SEM:Carrier:Integration Bandwidth (Hz)

Specifies the frequency range over which the measurement integrates the carrier power. This value is expressed in Hz.

Use "carrier<n>" as the selector string to configure or read this property. Details

SEM:Carrier:Channel Bandwidth (Hz)

specifies the channel bandwidth of the carrier. This parameter is used to calculate the values of the SEM Offset Start Freq and SEM Offset Stop Freq properties when you set the SEM Offset Freq Definition property to Carrier Edge to Meas BW Center or Carrier Edge to Meas BW Edge.

Use "carrier<n>" as the selector string to configure or read this property. Details

SEM:Carrier:RBW Filter:Auto Bandwidth

Specifies whether the measurement computes the resolution bandwidth (RBW) of the carrier.

Use "carrier<n>" as the selector string to configure or read this property. Details

SEM:Carrier:RBW Filter:Bandwidth (Hz)

Specifies the bandwidth of the resolution bandwidth (RBW) filter used to sweep the acquired carrier signal, when you set the SEM Carrier RBW Auto property to False. This value is expressed in Hz.

Use "carrier<n>" as the selector string to configure or read this property. Details

SEM:Carrier:RBW Filter:Type

Specifies the shape of the digital resolution bandwidth (RBW) filter.

Use "carrier<n>" as the selector string to configure or read this property. Details

SEM:Carrier:RBW Filter:Bandwidth Definition

Specifies the bandwidth definition that you use to specify the value of the SEM Carrier RBW property.

Use "carrier<n>" as the selector string to configure or read this property. Details

SEM:Carrier:RRC Filter:Enabled

Specifies whether to apply the root-raised-cosine (RRC) filter on the acquired carrier channel before measuring the carrier channel power.

Use "carrier<n>" as the selector string to configure or read this property. Details

SEM:Carrier:RRC Filter:Alpha

Specifies the roll-off factor for the root-raised-cosine (RRC) filter to apply on the acquired carrier channel before measuring the carrier channel power.

Use "carrier<n>" as the selector string to configure or read this property. Details

SEM:Offset:Number of Offsets

Specifies the number of offset segments.

You do not need to use a selector string to configure or read this property for the default signal instance. Refer to the Selector Strings topic for information about the string syntax for named signals. Details

SEM:Offset:Enabled

Specifies whether to enable the offset segment for SEM measurement.

Use "offset<n>" as the selector string to configure or read this property. Details

SEM:Offset:Start Frequency (Hz)

Specifies the start frequency of the offset segment relative to the closest configured carrier channel bandwidth center or carrier channel bandwidth edge based on the value of the SEM Offset Freq Definition property. This value is expressed in Hz.

Use "offset<n>" as the selector string to configure or read this property. Details

SEM:Offset:Stop Frequency (Hz)

Specifies the stop frequency of the offset segment relative to the closest configured carrier channel bandwidth center or carrier channel bandwidth edge based on the value of the SEM Offset Freq Definition property. This value is expressed in Hz.

Use "offset<n>" as the selector string to configure or read this property. Details

SEM:Offset:Sideband

Specifies whether the offset segment is present on one side, or on both sides of the carrier.

Use "offset<n>" as the selector string to configure or read this property. Details

SEM:Offset:RBW Filter:Auto Bandwidth

Specifies whether the measurement computes the resolution bandwidth (RBW).

Use "offset<n>" as the selector string to configure or read this property. Details

SEM:Offset:RBW Filter:Bandwidth (Hz)

Specifies the bandwidth of the resolution bandwidth (RBW) filter used to sweep the acquired offset segment, when you set the SEM Offset RBW Auto property to False. This value is expressed in Hz.

Use "offset<n>" as the selector string to configure or read this property. Details

SEM:Offset:RBW Filter:Type

Specifies the shape of the digital resolution bandwidth (RBW) filter.

Use "offset<n>" as the selector string to configure or read this property. Details

SEM:Offset:RBW Filter:Bandwidth Definition

Specifies the bandwidth definition which you use to specify the value of the SEM Offset RBW property.

Use "offset<n>" as the selector string to configure or read this property. Details

SEM:Offset:Bandwidth Integral

Specifies the resolution of the spectrum to compare with spectral mask limits as an integer multiple of the resolution bandwidth (RBW). Details

SEM:Offset:Relative Attenuation (dB)

Specifies the attenuation relative to the external attenuation specified by the External Attenuation property. This value is expressed in dB. Use the SEM Offset Rel Attn property to compensate for the variations in external attenuation when offset segments are spread wide in frequency.

Use "offset<n>" as the selector string to configure or read this property. Details

SEM:Offset:Limit Fail Mask

Specifies the criteria to determine the measurement fail status.

Use "offset<n>" as the selector string to configure or read this property. Details

SEM:Offset:Absolute Limit:Mode

Specifies whether the absolute limit mask is a flat line or a line with a slope.

Use "offset<n>" as the selector string to configure or read this property. Details

SEM:Offset:Absolute Limit:Start (dBm)

Specifies the absolute power limit corresponding to the beginning of the offset segment. This value is expressed in dBm. This power limit is also set as the stop limit for the offset segment when you set the SEM Offset Abs Limit Mode property to Couple. Details

SEM:Offset:Absolute Limit:Stop (dBm)

Specifies the absolute power limit corresponding to the end of the offset segment. This value is expressed in dBm. The measurement ignores this property when you set the SEM Offset Abs Limit Mode property to Couple.

Use "offset<n>" as the selector string to configure or read this property. Details

SEM:Offset:Relative Limit:Mode

Specifies whether the relative limit mask is a flat line or a line with a slope.

Use "offset<n>" as the selector string to configure or read this property. Details

SEM:Offset:Relative Limit:Start (dB)

Specifies the relative power limit corresponding to the beginning of the offset segment. This value is expressed in dB. This power limit is also set as the stop limit for the offset segment when you set the SEM Offset Rel Limit Mode property to Couple.

Use "offset<n>" as the selector string to configure or read this property. Details

SEM:Offset:Relative Limit:Stop (dB)

Specifies the relative power limit corresponding to the end of the offset segment. This value is expressed in dB. The measurement ignores this property when you set the SEM Offset Rel Limit Mode property to Couple.

Use "offset<n>" as the selector string to configure or read this property. Details

SEM:Offset:Frequency Definition

Specifies the definition of the start frequency and stop frequency of the offset segments from the nearest carrier channels.

Use "offset<n>" as the selector string to configure or read this property. Details

SEM:Power Units

Specifies the units for the absolute power. Details

SEM:Reference Type

Specifies whether the power reference is the integrated power or the peak power in the closest carrier channel. The leftmost carrier is the carrier closest to all the lower (negative) offset segments. The rightmost carrier is the carrier closest to all the upper (positive) offset segments. Details

SEM:Sweep Time:Auto

Specifies whether the measurement computes the sweep time. Details

SEM:Sweep Time:Interval (s)

Specifies the sweep time when you set the SEM Sweep Time Auto property to False. This value is expressed in seconds. Details

SEM:Averaging:Enabled

Specifies whether to enable averaging for the SEM measurement. Details

SEM:Averaging:Count

Specifies the number of acquisitions used for averaging when you set the SEM Averaging Enabled property to True. Details

SEM:Averaging:Type

Specifies the averaging type for averaging multiple spectrum acquisitions. The averaged spectrum is used for SEM measurement. Details

SEM:FFT:Window

Specifies the FFT window type to use to reduce spectral leakage. Details

SEM:FFT:Padding

Specifies the factor by which the time-domain waveform is zero-padded before FFT. The FFT size is given by the following formula:

waveform size * padding

This property is used only when the acquisition span is less than the device instantaneous bandwidth of the device. Details

SEM:Amplitude Correction Type

Specifies whether the amplitude of the frequency bins, used in the measurement, is corrected for external attenuation at the RF center frequency, or at the individual frequency bins. Use the RFmxInstr Configure External Attenuation Table VI to configure the external attenuation table. Details

SEM:All Traces Enabled

Specifies whether to enable the traces to be stored and retrieved after performing the SEM measurement. Details

SEM:Number of Analysis Threads

Specifies the maximum number of threads used for parallelism for SEM measurement. Details

SEM:Results:Total Carrier Power (dBm or dBm/Hz)

Returns the total integrated power, in dBm, of all the enabled carriers measured when you set the SEM Power Units property to dBm. Returns the power spectral density, in dBm/Hz, when you set the SEM Power Units property to dBm/Hz. Details

SEM:Results:Composite Measurement Status

Indicates the overall measurement status based on the measurement limits and the fail criteria that you set in the SEM Offset Limit Fail Mask property for each offset segment. Details

SEM:Results:Frequency Resolution

Returns the frequency bin spacing of the spectrum acquired by the measurement. This value is expressed in Hz. Details

SEM:Results:Carrier:Total Relative Power (dB)

Returns the carrier power relative to the total carrier power of all enabled carriers. This value is expressed in dB.

Use "carrier<n>" as the selector string to read this result. Details

SEM:Results:Carrier:Absolute Power (dBm or dBm/Hz)

Returns the carrier power. Details

SEM:Results:Carrier:Peak Absolute Power (dBm or dBm/Hz)

Returns the peak power in the carrier channel. Details

SEM:Results:Carrier:Peak Frequency (Hz)

Returns the frequency at which the peak power occurs in the carrier channel. This value is expressed in Hz.

Use "carrier<n>" as the selector string to read this result. Details

SEM:Results:Carrier:Frequency (Hz)

Returns the center frequency of the carrier relative to the Center Frequency property. This value is expressed in Hz.

Use "carrier<n>" as the selector string to read this result. Details

SEM:Results:Carrier:Integration Bandwidth (Hz)

Returns the frequency range, over which the measurement integrates the carrier power. This value is expressed in Hz.

Use "carrier<n>" as the selector string to read this result. Details

SEM:Results:Lower Offset:Measurement Status

Indicates the lower offset segment measurement status based on measurement limits and the fail criteria that you specify in the SEM Offset Limit Fail Mask property.

Use "offset<n>" as the selector string to read this result. Details

SEM:Results:Lower Offset:Total Absolute Power (dBm or dBm/Hz)

Returns the power measured in the lower (negative) offset segment. Details

SEM:Results:Lower Offset:Total Relative Power (dB)

Returns the power measured in the lower (negative) offset segment relative to either the integrated or peak power of the reference carrier. Details

SEM:Results:Lower Offset:Peak Absolute Power (dBm or dBm/Hz)

Returns the peak power measured in the lower (negative) offset segment. Details

SEM:Results:Lower Offset:Peak Relative Power (dB)

Returns the peak power measured in the lower (negative) offset segment relative to the integrated or peak power of the reference carrier. Details

SEM:Results:Lower Offset:Peak Frequency (Hz)

Returns the frequency at which the peak power occurred in the lower offset segment. This value is expressed in Hz.

Use "offset<n>" as the selector string to read this result. Details

SEM:Results:Lower Offset:Margin (dB)

Returns the margin from the limit mask value that you set in the SEM Offset Limit Fail Mask property. This value is expressed in dB. Margin is defined as the maximum difference between the spectrum and the limit mask. Details

SEM:Results:Lower Offset:Margin Absolute Power (dBm or dBm/Hz)

Returns the power, at which the margin occurred in the lower (negative) offset segment. Details

SEM:Results:Lower Offset:Margin Relative Power (dB)

Returns the power at which the margin occurred in the lower (negative) offset segment relative to the integrated or peak power of the reference carrier. This value is expressed in dB.

Use "offset<n>" as the selector string to read this result. Details

SEM:Results:Lower Offset:Margin Frequency (Hz)

Returns the frequency at which the margin occurred in the lower (negative) offset segment. This value is expressed in Hz.

Use "offset<n>" as the selector string to read this result. Details

SEM:Results:Lower Offset:Start Frequency (Hz)

Returns the start frequency of the lower (negative) offset segment. This value is expressed in Hz.

Use "offset<n>" as the selector string to read this result. Details

SEM:Results:Lower Offset:Stop Frequency (Hz)

Returns the stop frequency of the lower (negative) offset segment. This value is expressed in Hz.

Use "offset<n>" as the selector string to read this result. Details

SEM:Results:Lower Offset:Power Reference Carrier

Returns the index of the carrier that was used as the power reference to define the lower (negative) offset segment relative power. The reference carrier is the carrier that has an offset closest to the offset segment.

Use "offset<n>" as the selector string to read this result. Details

SEM:Results:Upper Offset:Measurement Status

Indicates the upper offset measurement status based on measurement limits and the fail criteria that you specify in the SEM Offset Limit Fail Mask property.

Use "offset<n>" as the selector string to read this result. Details

SEM:Results:Upper Offset:Total Absolute Power (dBm or dBm/Hz)

Returns the offset segment power measured in the upper (positive) offset segment. Details

SEM:Results:Upper Offset:Total Relative Power (dB)

Returns the power measured in the upper (positive) offset segment relative to the integrated or peak power of the reference carrier.

When you set the SEM Ref Type property to Integration, the reference carrier power is the total power in the reference carrier. When you set the SEM Ref Type property to Peak, the reference carrier power is the peak power in the reference.

Use "offset<n>" as the selector string to read this result. Details

SEM:Results:Upper Offset:Peak Absolute Power (dBm or dBm/Hz)

Returns the peak power measured in the upper (positive) offset segment. Details

SEM:Results:Upper Offset:Peak Relative Power (dB)

Returns the peak power measured in the upper (positive) offset segment relative to the integrated or peak power of the reference carrier.

When you set the SEM Ref Type property to Integration, the reference carrier power is the total power in the reference carrier. When you set the SEM Ref Type property to Peak, the reference carrier power is the peak power in the reference carrier.

Use "offset<n>" as the selector string to read this result. Details

SEM:Results:Upper Offset:Peak Frequency (Hz)

Returns the frequency at which the peak power occurred in the upper offset segment. This value is expressed in Hz.

Use "offset<n>" as the selector string to read this result. Details

SEM:Results:Upper Offset:Margin (dB)

Returns the margin from the limit mask value that you set in the SEM Offset Limit Fail Mask property. This value is expressed in dB. Margin is defined as the maximum difference between the spectrum and the limit mask. Details

SEM:Results:Upper Offset:Margin Absolute Power (dBm or dBm/Hz)

Returns the power, at which the margin occurred in the upper (positive) offset segment. Details

SEM:Results:Upper Offset:Margin Relative Power (dB)

Returns the power at which the margin occurred in the upper (positive) offset segment relative to the integrated or peak power of the reference carrier. This value is expressed in dB.

Use "offset<n>" as the selector string to read this result. Details

SEM:Results:Upper Offset:Margin Frequency (Hz)

Returns the frequency at which the margin occurred in the upper (positive) offset. This value is expressed in Hz.

Use "offset<n>" as the selector string to read this result. Details

SEM:Results:Upper Offset:Start Frequency (Hz)

Returns the start frequency of the upper (positive) offset segment. This value is expressed in Hz.

Use "offset<n>" as the selector string to read this result. Details

SEM:Results:Upper Offset:Stop Frequency (Hz)

Returns the stop frequency of the upper (positive) offset segment. This value is expressed in Hz.

Use "offset<n>" as the selector string to read this result. Details

SEM:Results:Upper Offset:Power Reference Carrier

Returns the index of the carrier that was used as the power reference to define the upper (positive) offset segment relative power. The reference carrier is the carrier that has an offset closest to the offset segment.

Use "offset<n>" as the selector string to read this result. Details

Spectrum:Measurement Enabled

Specifies whether to enable the spectrum measurement. Details

Spectrum:Span (Hz)

Specifies the frequency range around the center frequency, to acquire for the measurement. This value is expressed in Hz. Details

Spectrum:Power Units

Specifies the units for the absolute power. Details

Spectrum:RBW Filter:Auto Bandwidth

Specifies whether the measurement computes the resolution bandwidth (RBW). Details

Spectrum:RBW Filter:Bandwidth (Hz)

Specifies the bandwidth of the resolution bandwidth (RBW) filter used to sweep the acquired signal, when you set the Spectrum RBW Auto property to False. This value is expressed in Hz. Details

Spectrum:RBW Filter:Type

Specifies the shape of the digital resolution bandwidth (RBW) filter. Details

Spectrum:RBW Filter:Bandwidth Definition

Specifies the bandwidth definition which you use to specify the value of the Spectrum RBW property. Details

Spectrum:VBW Filter:Auto Bandwidth

Specifies whether the video bandwidth (VBW) is expressed directly or computed based on the VBW to RBW ratio. Details

Spectrum:VBW Filter:Bandwidth (Hz)

Specifies the video bandwidth (VBW) in Hz when you set the Spectrum VBW Auto property to False. Details

Spectrum:VBW Filter:VBW to RBW Ratio

Specifies the VBW to RBW Ratio when you set the Spectrum VBW Auto property to True . Details

Spectrum:Sweep Time:Auto

Specifies whether the measurement computes the sweep time. Details

Spectrum:Sweep Time:Interval (s)

Specifies the sweep time when you set the Spectrum Sweep Time Auto property to False. This value is expressed in seconds. Details

Spectrum:Detector:Type

Specifies the type of detector to be used. Details

Spectrum:Detector:Points

Specifies the number of trace points after the detector is applied. Details

Spectrum:Noise Calibration:Mode

Specifies whether the noise calibration and measurement is performed manually by the user or automatically by RFmx. Refer to the measurement guidelines section in the Noise Compensation Algorithm topic for more information. Details

Spectrum:Noise Calibration:Averaging:Auto

Specifies whether RFmx automatically computes the averaging count used for instrument noise calibration. Details

Spectrum:Noise Calibration:Averaging:Count

Specifies the averaging count used for noise calibration when you set the Spectrum Noise Cal Averaging Auto property to False. Details

Spectrum:Noise Compensation:Enabled

Specifies whether RFmx compensates for the instrument noise while performing the measurement when you set the Spectrum Noise Cal Mode property to Auto, or when you set the Spectrum Noise Cal Mode property to Manual and Spectrum Meas Mode to Measure. Refer to the Noise Compensation Algorithm topic for more information. Details

Spectrum:Noise Compensation:Type

Specifies the noise compensation type. Refer to the Noise Compensation Algorithm topic for more information. Details

Spectrum:Averaging:Enabled

Specifies whether to enable averaging for the spectrum measurement. Details

Spectrum:Averaging:Count

Specifies the number of acquisitions used for averaging when you set the Spectrum Averaging Enabled property to True. Details

Spectrum:Averaging:Type

Specifies the averaging type for averaging multiple spectrum acquisitions. The averaged spectrum is used for spectrum measurement. Details

Spectrum:Measurement Mode

Specifies whether the measurement calibrates the noise floor of analyzer or performs the spectrum measurement. Refer to the measurement guidelines section in the Noise Compensation Algorithm topic for more information. Details

Spectrum:FFT:Window

Specifies the FFT window type to use to reduce spectral leakage. Details

Spectrum:FFT:Padding

Specifies the factor by which the time-domain waveform is zero-padded before FFT. The FFT size is given by the following formula:

waveform size * padding

This property is used only when the acquisition span is less than the device instantaneous bandwidth of the device. Details

Spectrum:Amplitude Correction Type

Specifies whether the amplitude of the frequency bins, used in the measurement, is corrected for external attenuation at the RF center frequency, or at the individual frequency bins. Use the RFmxInstr Configure External Attenuation Table VI to configure the external attenuation table. Details

Spectrum:Analysis Input

Specifies whether to analyze just the real I or Q component of the acquired IQ data, or analyze the complex IQ data. Details

Spectrum:Number of Analysis Threads

Specifies the maximum number of threads used for parallelism for spectrum measurement. Details

Spectrum:Results:Peak Amplitude (dBm)

Returns the peak amplitude, of the averaged spectrum. Details

Spectrum:Results:Peak Frequency (Hz)

Returns the frequency at the peak amplitude of the averaged spectrum. This value is expressed in Hz. This property is not valid if you set the Spectrum Span property to 0. Details

Spectrum:Results:Frequency Resolution (Hz)

Returns the frequency bin spacing of the spectrum acquired by the measurement. This value is expressed in Hz. This property is not valid if you set the Spectrum Span property to 0. Details

Spur:Measurement Enabled

Specifies whether to enable the spurious emission (Spur) measurement. Details

Spur:Range:Number of Ranges

Specifies the number of ranges.

You do not need to use a selector string to configure or read this property for the default signal instance. Refer to the Selector Strings topic for information about the string syntax for named signals. Details

Spur:Range:Enabled

Specifies whether to measure the spurious emissions (Spur) in the frequency range.

Use "range<n>" as the selector string to configure or read this property. Details

Spur:Range:Start Frequency (Hz)

Specifies the start of the frequency range for the measurement. This value is expressed in Hz.

Use "range<n>" as the selector string to configure or read this property. Details

Spur:Range:Stop Frequency (Hz)

Specifies the stop of the frequency range for the measurement. This value is expressed in Hz.

Use "range<n>" as the selector string to configure or read this property. Details

Spur:Range:RBW Filter:Auto Bandwidth

Specifies whether the measurement computes the resolution bandwidth (RBW).

Use "range<n>" as the selector string to configure or read this property. Details

Spur:Range:RBW Filter:Bandwidth (Hz)

Specifies the bandwidth of the resolution bandwidth (RBW) filter used to sweep the acquired signal, when you set the Spur Range RBW Auto property to False.

Use "range<n>" as the selector string to configure or read this property. Details

Spur:Range:RBW Filter:Type

Specifies the shape of the digital resolution bandwidth (RBW) filter.

Use "range<n>" as the selector string to configure or read this property. Details

Spur:Range:RBW Filter:Bandwidth Definition

Specifies the bandwidth definition which you use to specify the value of the Spur Range RBW property.

Use "range<n>" as the selector string to configure or read this property. Details

Spur:Range:VBW Filter:Auto Bandwidth

Specifies whether the video bandwidth (VBW) is expressed directly or computed based on the VBW to RBW ratio. Details

Spur:Range:VBW Filter:Bandwidth (Hz)

Specifies the video bandwidth (VBW) in Hz when you set the Spur Range VBW Auto property to False. Details

Spur:Range:VBW Filter:VBW to RBW Ratio

Specifies the VBW to RBW Ratio when you set the Spur Range VBW Auto property to True. Details

Spur:Range:Sweep Time:Auto

Specifies whether the measurement computes the sweep time.

Use "range<n>" as the selector string to configure or read this property. Details

Spur:Range:Sweep Time:Interval (s)

Specifies the sweep time when you set the Spur Range Sweep Time Auto property to False. This value is expressed in seconds.

Use "range<n>" as the selector string to configure or read this property. Details

Spur:Range:Detector:Type

Specifies the type of detector to be used.

Use "range<n>" as the selector string to configure or read this property. Details

Spur:Range:Detector:Points

Specifies the number of range points after the detector is applied.

Use "range<n>" as the selector string to configure or read this property. Details

Spur:Range:Absolute Limit:Mode

Specifies whether the absolute limit threshold is a flat line or a line with a slope.

Use "range<n>" as the selector string to configure or read this property. Details

Spur:Range:Absolute Limit:Start (dBm)

Specifies the absolute power limit corresponding to the beginning of the frequency range. This value is expressed in dBm. This power limit is also set as the absolute power limit for the range when you set the Spur Range Abs Limit Mode property to Couple.

Use "range<n>" as the selector string to configure or read this property. Details

Spur:Range:Absolute Limit:Stop (dBm)

Specifies the absolute power limit corresponding to the end of the frequency range. This value is expressed in dBm. The measurement ignores this property when you set the Spur Range Abs Limit Mode property to Couple.

Use "range<n>" as the selector string to configure or read this property. Details

Spur:Range:Relative Attenuation (dB)

Specifies the attenuation relative to the external attenuation specified by the External Attenuation property. This value is expressed in dB. Use the Spur Range Rel Attn property to compensate for the variations in external attenuation when offset segments are spread wide in frequency.

Use "range<n>" as the selector string to configure or read this property. Details

Spur:Range:Peak Threshold (dBm)

Specifies the threshold level above which the measurement detects spurs in the range that you specify using the Spur Range Start Freq and Spur Range Stop Freq properties. This value is expressed in dBm.

Use "range<n>" as the selector string to configure or read this property. Details

Spur:Range:Peak Excursion (dB)

Specifies the peak excursion value used to find the spurs in the spectrum. This value is expressed in dB. The signal should rise and fall by at least the peak excursion value, above the threshold, to be considered a spur.

Use "range<n>" as the selector string to configure or read this property. Details

Spur:Range:Number of Spurs to Report

Specifies the number of spurious emissions (Spur) that the measurement should report in the frequency range.

Use "range<n>" as the selector string to configure or read this property. Details

Spur:Averaging:Enabled

Specifies whether to enable averaging for the spurious emission (Spur) measurement. Details

Spur:Averaging:Count

Specifies the number of acquisitions used for averaging when you set the Spur Averaging Enabled property to True. Details

Spur:Averaging:Type

Specifies the averaging type for averaging multiple spectrum acquisitions. The averaged spectrum is used for spurious emission (Spur) measurement. Details

Spur:FFT:Window

Specifies the FFT window type to use to reduce spectral leakage. Details

Spur:Trace Range Index

Specifies the index of the range used to store and retrieve spurious emission (Spur) traces. This property is not used if you set the Spur All Traces Enabled Property to FALSE. When you set this property to -1, the measurement stores and retrieves traces for all enabled ranges. Details

Spur:Amplitude Correction Type

Specifies whether the amplitude of the frequency bins, used in the measurement, is corrected for external attenuation at the RF center frequency, or at the individual frequency bins. Use the RFmxInstr Configure External Attenuation Table VI to configure the external attenuation table. Details

Spur:All Traces Enabled

Specifies whether to enable the traces to be stored and retrieved after performing the spurious emissions (Spur) measurement. Details

Spur:Number of Analysis Threads

Specifies the maximum number of threads used for parallelism for spurious emission (Spur) measurement. Details

Spur:Results:Measurement Status

Indicates the overall measurement status. Details

Spur:Results:Range:Measurement Status

Indicates the measurement status for the frequency range.

Use "range<n>" as the selector string to read this result. Details

Spur:Results:Range:Spur:Number of Detected Spurs

Returns the number of detected spurious emissions (Spur) in the specified frequency range.

Use "range<n>" as the selector string to read this result. Details

Spur:Results:Range:Spur:Frequency (Hz)

Returns the frequency of the detected spurious emissions (Spur). This value is expressed in Hz.

Use "range<n>/spur<k>" as the selector string to read this result. Details

Spur:Results:Range:Spur:Margin (dB)

Returns the difference between the amplitude and the absolute limit of the detected spurious emissions (Spur) at the Spur frequency.

Use "range<n>/spur<k>" as the selector string to read this result. Details

Spur:Results:Range:Spur:Amplitude (dBm)

Returns the amplitude of the detected spurious emissions (Spur). This value is expressed in dBm.

Use "range<n>/spur<k>" as the selector string to read this result. Details

Spur:Results:Range:Spur:Absolute Limit (dBm)

Returns the threshold used to calculate the margin of the detected spurious emissions (Spur). This value is expressed in dBm. The measurement calculates the threshold using the absolute limit line specified by the Spur Range Abs Limit Mode property.

Use "range<n>/spur<k>" as the selector string to read this result. Details

TXP:Measurement Enabled

Specifies whether to enable the TXP measurement. Details

TXP:Measurement Interval (s)

Specifies the acquisition time for the TXP measurement. This value is expressed in seconds. Details

TXP:RBW Filter:Bandwidth (Hz)

Specifies the bandwidth of the resolution bandwidth (RBW) filter used to measure the signal. This value is expressed in Hz. Details

TXP:RBW Filter:Type

Specifies the shape of the digital resolution bandwidth (RBW) filter. Details

TXP:RBW Filter:Alpha

Specifies the roll-off factor for the root-raised-cosine (RRC) filter. Details

TXP:VBW Filter:Auto Bandwidth

Specifies whether the video bandwidth (VBW) is expressed directly or computed based on the VBW to RBW ratio. Details

TXP:VBW Filter:Bandwidth (Hz)

Specifies the video bandwidth when you set the TXP VBW Auto property to False. Details

TXP:VBW Filter:VBW to RBW Ratio

Specifies the VBW to RBW Ratio when you set the TXP VBW Auto property to True. Details

TXP:Threshold:Enabled

Specifies whether to enable thresholding of the acquired samples to be used for the TXP measurement. Details

TXP:Threshold:Type

Specifies the reference for the power level used for thresholding. Details

TXP:Threshold:Level (dB or dBm)

Specifies either the relative or absolute threshold power level based on the value of the TXP Threshold Type property. Details

TXP:Averaging:Enabled

Specifies whether to enable averaging for the TXP measurement. Details

TXP:Averaging:Count

Specifies the number of acquisitions used for averaging when you set the TXP Averaging Enabled property to True. Details

TXP:Averaging:Type

Specifies the averaging type for the TXP measurement. The averaged power trace is used for the measurement. Details

TXP:All Traces Enabled

Specifies whether to enable the traces to be stored and retrieved after performing the TXP measurement. Details

TXP:Number of Analysis Threads

Specifies the maximum number of threads used for parallelism for TXP measurement. Details

TXP:Results:Average Mean Power (dBm)

Returns the mean power of the signal. This value is expressed in dBm. Only the samples above the threshold are used by the measurement when you set the TXP Threshold Enabled property to True. When you set the TXP Averaging Enabled property to True, the mean power is measured using the power trace averaged over multiple acquisitions. Details

TXP:Results:Peak to Average Ratio (dB)

Returns the ratio of the peak power of the signal to the mean power. Only the samples above the threshold are used by the measurement when you set the TXP Threshold Enabled property to True. When you set the TXP Averaging Enabled property to True, the peak and mean powers are measured using the power trace averaged over multiple acquisitions. Details

TXP:Results:Maximum Power (dBm)

Returns the maximum power of the averaged power trace. This value is expressed in dBm. Details

TXP:Results:Minimum Power (dBm)

Returns the minimum power of the averaged power trace. This value is expressed in dBm. Details

AMPM:Measurement Enabled

Specifies whether to enable the AMPM measurement. Details

AMPM:Measurement Sample Rate:Mode

Specifies whether the acquisition sample rate is based on the reference waveform. Details

AMPM:Measurement Sample Rate:Sample Rate (S/s)

Specifies the acquisition sample rate when you set the AMPM Meas Sample Rate Mode property to User. This value is expressed in samples per second (S/s). Details

AMPM:Measurement Interval (s)

Specifies the duration of the reference waveform considered for the AMPM measurement. When the reference waveform contains an idle duration, the AMPM measurement neglects the idle samples in the reference waveform leading up to the start of the first active portion of the reference waveform. This value is expressed in seconds. Details

AMPM:Signal Type

Specifies whether the reference waveform is a modulated signal or a combination of one or more sinusoidal signals. To time-align the sinusoidal reference waveform to the acquired signal, set the AMPM Signal Type property to Tones, which switches the AMPM measurement alignment algorithm. Details

AMPM:Synchronization Method

Specifies the method used for synchronization of acquired waveform with reference waveform. Details

AMPM:Carrier:Auto Carrier Detection Enabled

Specifies if auto detection of carrier offset and carrier bandwidth is enabled. Details

AMPM:Carrier:Number of Carriers

Specifies the number of carriers in the reference waveform when you set the AMPM Auto Carrier Detection Enabled property to False. Details

AMPM:Carrier:Offset (Hz)

Specifies the carrier offset when you set the AMPM Auto Carrier Detection Enabled property to False. This value is expressed in Hz. Details

AMPM:Carrier:Bandwidth (Hz)

Specifies the carrier bandwidth when you set the AMPM Auto Carrier Detection Enabled property to False. This value is expressed in Hz. Details

AMPM:DUT Average Input Power (dBm)

Specifies the average power of the signal at the input port of the device under test. This value is expressed in dBm. Details

AMPM:AM to AM Curve Fit:Order

Specifies the degree of the polynomial used to approximate the AM-to-AM characteristic of the device under test (DUT). Details

AMPM:AM to AM Curve Fit:Type

Specifies the polynomial approximation cost-function of the device under test AM-to-AM characteristic. Details

AMPM:AM to PM Curve Fit:Order

Specifies the degree of the polynomial used to approximate the AM-to-PM characteristic of the device under test. Details

AMPM:AM to PM Curve Fit:Type

Specifies the polynomial approximation cost-function of the device under test AM-to-PM characteristic. Details

AMPM:Threshold:Enabled

Specifies whether to enable thresholding of the acquired samples used for the AMPM measurement. Details

AMPM:Threshold:Type

Specifies the reference for the power level used for thresholding. Details

AMPM:Threshold:Level (dB or dBm)

Specifies either the relative or absolute threshold power level, based on the value of the AMPM Threshold Type property. Details

AMPM:Frequency Offset Correction Enabled

Enables frequency offset correction for the measurement. Details

AMPM:IQ Origin Offset Correction Enabled

Enables IQ origin offset correction for the measurement. Details

AMPM:AM to AM Enabled

Specifies whether to enable the results that rely on the AM to AM characteristics. Details

AMPM:AM to PM Enabled

Specifies whether to enable the results that rely on AM to PM characteristics. Details

AMPM:EVM Enabled

Specifies whether to enable the AMPM Results Mean RMS EVM property. Details

AMPM:Equalizer:Mode

Specifies whether the measurement equalizes the channel. Details

AMPM:Equalizer:Filter Length

Specifies the length of the equalizer filter. The measurement maintains the filter length as an odd number by incrementing any even numbered value by one. Details

AMPM:Averaging:Enabled

Specifies whether to enable averaging for the AMPM measurement. Details

AMPM:Averaging:Count

Specifies the number of acquisitions used for averaging when you set the AMPM Averaging Enabled property to True. Details

AMPM:Compression Point:Enabled

Enables computation of compression points corresponding to the respective compression levels specified by the AMPM Compression Point Level property. Details

AMPM:Compression Point:Level (dB)

Specifies the compression levels for which the compression points are computed when you set the AMPM Compression Point Enabled property to True. Details

AMPM:Compression Point:Gain:Reference

Specifies the gain reference for compression point calculation. Details

AMPM:Compression Point:Gain:Reference Power (dBm)

Specifies the reference power corresponding to the gain reference to be used for compression point calculation when you set the AMPM Compression Point Gain Ref property to Reference Power. The reference power can be configured as either input or output power based on the value of the AMPM Ref Pwr Type property. This value is expressed in dBm. Details

AMPM:Compression Point:Gain:User Defined (dB)

Specifies the gain to be used as the gain reference for compression point calculation when you set the AMPM Compression Point Gain Ref property to User Defined. This value is expressed in dB. Details

AMPM:Max Timing Error (s)

Specifies the maximum time alignment error expected between the acquired and the reference waveforms. This value is expressed in seconds. Details

AMPM:Reference Power Type

Specifies the reference power used for AM to AM and AM to PM traces. Details

AMPM:All Traces Enabled

Specifies whether to enable the traces to be stored and retrieved after performing the AMPM measurement. Details

AMPM:Number of Analysis Threads

Specifies the maximum number of threads used for parallelism for the AMPM measurement.

The number of threads can range from 1 to the number of physical cores. However, the number of threads you set may not be used in calculations. The actual number of threads used depends on the problem size, system resources, data availability, and other considerations. Details

AMPM:Results:Mean Linear Gain (dB)

Returns the average linear gain of the device under test, computed by rejecting signal samples containing gain compression. This value is expressed in dB. Details

AMPM:Results:Compression Point:1 dB Compression Point (dBm)

Returns the theoretical output power at which the gain of the device under test drops by 1 dB from a gain reference computed based on the value that you specify for the AMPM Compression Point Gain Ref property. This value is expressed in dBm. This property returns NaN when the AM-to-AM characteristics of the device under test are flat. Details

AMPM:Results:Compression Point:Input Compression Point (dBm)

Returns the theoretical input power at which the gain of the device drops by a compression level, specified through the AMPM Compression Point Level property, from a gain reference computed based on the value that you specify for the AMPM Compression Point Gain Ref property. This value is expressed in dBm. Details

AMPM:Results:Compression Point:Output Compression Point (dBm)

Returns the theoretical output power at which the gain of the device drops by a compression level, specified through the AMPM Compression Point Level property, from a gain reference computed based on the value that you specify for the AMPM Compression Point Gain Ref property. This value is expressed in dBm. Details

AMPM:Results:Compression Point:Gain Reference (dB)

Returns the gain reference used for compression point calculation. This value is expressed in dB. Details

AMPM:Results:Peak Reference Power (dBm)

Returns the peak reference power. This value is expressed in dBm. Details

AMPM:Results:Peak Reference Power Gain (dB)

Returns the gain at the peak reference power. This value is expressed in dB. Details

AMPM:Results:Mean RMS EVM (%)

Returns the ratio, as a percentage, of l2 norm of difference between the normalized reference and acquired waveforms, to the l2 norm of the normalized reference waveform. Details

AMPM:Results:Gain Error Range (dB)

Returns the peak-to-peak deviation of the device under test gain. This value is expressed in dB. Details

AMPM:Results:Phase Error Range (deg)

Returns the peak-to-peak deviation of the phase distortion of the acquired signal relative to the reference waveform caused by the device under test. This value is expressed in degrees. Details

AMPM:Results:Mean Phase Error (deg)

Returns the mean phase error of the acquired signal relative to the reference waveform caused by the device under test. This value is expressed in degrees. Details

AMPM:Results:AM to AM Curve Fit Residual (dB)

Returns the approximation error of the polynomial approximation of the measured device under test AM-to-AM characteristic. This value is expressed in dB. Details

AMPM:Results:AM to PM Curve Fit Residual (deg)

Returns the approximation error of the polynomial approximation of the measured AM-to-PM characteristic of the device under test. This value is expressed in degrees. Details

AMPM:Results:AM to AM Curve Fit Coefficients

Returns the coefficients of the polynomial that approximates the measured AM-to-AM characteristic of the device under test. Details

AMPM:Results:AM to PM Curve Fit Coefficients

Returns the coefficients of the polynomial that approximates the measured AM-to-PM characteristic of the device under test. Details

DPD:Measurement Enabled

Specifies whether to enable DPD measurement. Details

DPD:Measurement Sample Rate:Mode

Specifies the acquisition sample rate configuration mode. Details

DPD:Measurement Sample Rate:Sample Rate (S/s)

Specifies the acquisition sample rate when you set the DPD Meas Sample Rate Mode property to User. This value is expressed in Samples per second (S/s). Details

DPD:Measurement Interval (s)

Specifies the duration of the reference waveform considered for the DPD measurement. When the reference waveform contains an idle duration, the DPD measurement neglects the idle samples in the reference waveform leading up to the start of the first active portion of the reference waveform. This value is expressed in seconds. Details

DPD:Signal Type

Specifies whether the reference waveform is a modulated signal or a combination of one or more sinusoidal signals. To time-align the sinusoidal reference waveform to the acquired signal, set the DPD Signal Type property to Tones, which switches the DPD measurement alignment algorithm. Details

DPD:Synchronization Method

Specifies the method used for synchronization of the acquired waveform with the reference waveform. Details

DPD:Carrier:Auto Carrier Detection Enabled

Specifies if auto detection of carrier offset and carrier bandwidth is enabled. Details

DPD:Carrier:Number of Carriers

Specifies the number of carriers in the reference waveform when you set the DPD Auto Carrier Detection Enabled property to False. Details

DPD:Carrier:Offset (Hz)

Specifies the carrier offset when you set the DPD Auto Carrier Detection Enabled property to False. This value is expressed in Hz. Details

DPD:Carrier:Bandwidth (Hz)

Specifies the carrier bandwidth when you set the DPD Auto Carrier Detection Enabled property to False. This value is expressed in Hz. Details

DPD:DUT Average Input Power (dBm)

Specifies the average power of the signal at the device under test input port. This value is expressed in dBm. Details

DPD:Model

Specifies the DPD model used by the DPD measurement. Details

DPD:Target Gain Type

Specifies the gain expected from the DUT after applying DPD on the input waveform. Details

DPD:Lookup Table:Type

Specifies the type of the DPD lookup table (LUT). Details

DPD:Lookup Table:AM to AM Curve Fit:Order

Specifies the degree of the polynomial used to approximate the device under test AM-to-AM characteristic when you set the DPD Model property to Lookup Table. Details

DPD:Lookup Table:AM to AM Curve Fit:Type

Specifies the polynomial approximation cost-function of the device under test AM-to-AM characteristic when you set the DPD Model property to Lookup Table. Details

DPD:Lookup Table:AM to PM Curve Fit:Order

Specifies the degree of the polynomial used to approximate the device under test AM-to-PM characteristic when you set the DPD Model property to Lookup Table. Details

DPD:Lookup Table:AM to PM Curve Fit:Type

Specifies the polynomial approximation cost-function of the device under test AM-to-PM characteristic when you set the DPD Model property to Lookup Table. Details

DPD:Lookup Table:Threshold:Enabled

Specifies whether to enable thresholding of the acquired samples to be used for the DPD measurement when you set the DPD Model property to Lookup Table. Details

DPD:Lookup Table:Threshold:Type

Specifies the reference for the power level used for thresholding. Details

DPD:Lookup Table:Threshold:Level (dB or dBm)

Specifies either the relative or absolute threshold power level based on the value of the DPD LUT Threshold Type property. This value is expressed in dB or dBm. Details

DPD:Lookup Table:Step Size (dB)

Specifies the step size of the input power levels in the predistortion lookup table when you set the DPD Model property to Lookup Table. This value is expressed in dB. Details

DPD:Memory Polynomial:Order

Specifies the order of the DPD polynomial when you set the DPD Model property to Memory Polynomial or Generalized Memory Polynomial. This order value corresponds to Ka in the equation for the generalized memory polynomial. Details

DPD:Memory Polynomial:Memory Depth

Specifies the memory depth of the DPD polynomial when you set the DPD Model property to Memory Polynomial or Generalized Memory Polynomial. This depth value corresponds to Qa in the equation for the generalized memory polynomial. Details

DPD:Memory Polynomial:Model Subset:Order Type

Configures the type of terms of the DPD polynomial when you set the DPD Model property to Memory Polynomial or Generalized Memory Polynomial. Details

DPD:Memory Polynomial:Cross Terms:Lead Order

Specifies the lead order cross term of the DPD polynomial when you set the DPD Model property to Generalized Memory Polynomial. This term value corresponds to Kc in the equation for the generalized memory polynomial. Details

DPD:Memory Polynomial:Cross Terms:Lag Order

Specifies the lag order cross term of the DPD polynomial when you set the DPD Model property to Generalized Memory Polynomial. This term value corresponds to Kb in the equation for the generalized memory polynomial. Details

DPD:Memory Polynomial:Cross Terms:Lead Memory Depth

Specifies the lead memory depth cross term of the DPD polynomial when you set the DPD Model property to Generalized Memory Polynomial. This term value corresponds to Qc in the equation for the generalized memory polynomial. The value of the DPD Mem Poly Lead Mem Depth property must be greater than or equal to the value of the DPD Mem Poly Max Lead property. Details

DPD:Memory Polynomial:Cross Terms:Lag Memory Depth

Specifies the lag memory depth cross term of the DPD polynomial when you set the DPD Model property to Generalized Memory Polynomial. This term value corresponds to Qb in the equation for the generalized memory polynomial. Details

DPD:Memory Polynomial:Cross Terms:Maximum Lead

Specifies the maximum lead stagger cross term of the DPD polynomial when you set the DPD Model property to Generalized Memory Polynomial. This term value corresponds to Mc in the equation for the generalized memory polynomial. Details

DPD:Memory Polynomial:Cross Terms:Maximum Lag

Specifies the maximum lag stagger cross term of the DPD polynomial when you set the DPD Model property to Generalized Memory Polynomial. This term value corresponds to Mb in the equation for the generalized memory polynomial. Details

DPD:Memory Polynomial:Model Subset:Cross Terms:Lead Order Type

Configures the type of terms of the lead order DPD polynomial when you set the DPD Model property to Generalized Memory Polynomial. Details

DPD:Memory Polynomial:Model Subset:Cross Terms:Lag Order Type

Configures the type of terms of the lag order DPD polynomial when you set the DPD Model property to Generalized Memory Polynomial. Details

DPD:Iterative DPD Enabled

Specifies whether to enable iterative computation of the DPD Results DPD Polynomial using indirect-learning architecture. Details

DPD:Frequency Offset Correction Enabled

Specifies whether to enable frequency offset correction for the DPD measurement. Details

DPD:IQ Origin Offset Correction Enabled

Enables the IQ origin offset correction for the measurement. Details

DPD:Averaging:Enabled

Specifies whether to enable averaging for the DPD measurement. Details

DPD:Averaging:Count

Specifies the number of acquisitions used for averaging when you set the DPD Averaging Enabled property to True. Details

DPD:Max Timing Error (s)

Specifies the maximum time alignment error expected between the acquired and the reference waveforms. This value is expressed in seconds. Details

DPD:NMSE Enabled

Specifies whether to enable the normalized mean-squared error (NMSE) computation. Details

DPD:Pre-DPD:Crest Factor Reduction:Enabled

Specifies whether to enable the crest factor reduction (CFR) when applying pre-DPD signal conditioning. Details

DPD:Pre-DPD:Crest Factor Reduction:Method

Specifies the method used to perform crest factor reduction (CFR) when you set the DPD Pre-DPD CFR Enabled property to True. Refer to DPD concept topic for more information about CFR methods. Details

DPD:Pre-DPD:Crest Factor Reduction:Maximum Iterations

Specifies the maximum number of iterations allowed to converge waveform PAPR to target PAPR, when you set the DPD Pre-DPD CFR Enabled property to True. Details

DPD:Pre-DPD:Crest Factor Reduction:Target PAPR (dB)

Specifies the target peak-to-average power ratio when you set the DPD Pre-DPD CFR Enabled property to True. This value is expressed in dB. Details

DPD:Pre-DPD:Crest Factor Reduction:Peak Windowing:Window Type

Specifies the window type to be used when you set the DPD Pre-DPD CFR Enabled property to True and the DPD Pre-DPD CFR Method property to Peak Windowing. Details

DPD:Pre-DPD:Crest Factor Reduction:Peak Windowing:Window Length

Specifies the maximum window length to be used when you set the DPD Pre-DPD CFR Enabled property to True and the DPD Pre-DPD CFR Method property to Peak Windowing. Details

DPD:Pre-DPD:Crest Factor Reduction:Sigmoid:Shaping Factor

Specifies the shaping factor to be used when you set the DPD Pre-DPD CFR Enabled property to True and the DPD Pre-DPD CFR Method property to Sigmoid. Refer to the DPD concept topic for more information about shaping factor. Details

DPD:Pre-DPD:Crest Factor Reduction:Sigmoid:Shaping Threshold (dB)

Specifies the shaping threshold to be used when you set the DPD Pre-DPD CFR Enabled property to True and the DPD Pre-DPD CFR Method property to Sigmoid. This value is expressed in dB. Refer to the DPD concept topic for more information about shaping threshold. Details

DPD:Pre-DPD:Crest Factor Reduction:Filter:Enabled

Specifies whether to enable the filtering operation when you set the DPD Apply DPD CFR Enabled property to True. Refer to DPD concept topic for more information about filtering. Details

DPD:Pre-DPD:Crest Factor Reduction:Number of Carriers

Specifies the number of carriers in the input waveform when you set the DPD Pre-DPD CFR Enabled property and the DPD Pre-DPD CFR Filter Enabled property to True. Details

DPD:Pre-DPD:Crest Factor Reduction:Carrier Offset (Hz)

Specifies the carrier offset relative to the center of the complex baseband equivalent of the RF signal when you set the DPD Pre-DPD CFR Enabled property and the DPD Pre-DPD CFR Filter Enabled property to True. This value is expressed in Hz. Details

DPD:Pre-DPD:Crest Factor Reduction:Carrier Bandwidth (Hz)

Specifies the carrier bandwidth when you set the DPD Pre-DPD CFR Enabled property and the DPD Pre-DPD CFR Filter Enabled property to True. This value is expressed in Hz. Details

DPD:All Traces Enabled

Specifies whether to enable the traces to be stored and retrieved after performing the DPD measurement. Details

DPD:Number of Analysis Threads

Specifies the maximum number of threads used for parallelism of the DPD measurement. Details

DPD:Apply DPD:Configuration Input

Specifies whether to use the configuration parameters used by the DPD measurement for applying DPD. Details

DPD:Apply DPD:Lookup Table Correction Type

Specifies the predistortion type when you set the DPD Model property to Lookup Table. Details

DPD:Apply DPD:Memory Models Correction Type

Specifies the predistortion type when you set the DPD Model property to Memory Polynomial or Generalized Memory Polynomial. Details

DPD:Apply DPD:Crest Factor Reduction:Enabled

Specifies whether to enable the crest factor reduction (CFR) on the pre-distorted waveform. Details

DPD:Apply DPD:Crest Factor Reduction:Method

Specifies the method used to perform the crest factor reduction (CFR) when you set the DPD Apply DPD CFR Enabled property to True. Details

DPD:Apply DPD:Crest Factor Reduction:Maximum Iterations

Specifies the maximum number of iterations allowed to converge waveform PAPR to target PAPR when you set the DPD Apply DPD CFR Enabled property to True. Details

DPD:Apply DPD:Crest Factor Reduction:Target PAPR Type

Specifies the target PAPR type when you set the DPD Apply DPD CFR Enabled property to True. Details

DPD:Apply DPD:Crest Factor Reduction:Target PAPR (dB)

Specifies the target PAPR when you set the DPD Apply DPD CFR Enabled property to True and the DPD Apply DPD CFR Target PAPR Type property to Custom. This value is expressed in dB. Details

DPD:Apply DPD:Crest Factor Reduction:Peak Windowing:Window Type

Specifies the window type to be used when you set the DPD Apply DPD CFR Enabled property to True and the DPD Apply DPD CFR Method property to Peak Windowing. Details

DPD:Apply DPD:Crest Factor Reduction:Peak Windowing:Window Length

Specifies the maximum window length to be used when you set the DPD Apply DPD CFR Enabled property to True and the DPD Apply DPD CFR Method property to Peak Windowing. Details

DPD:Apply DPD:Crest Factor Reduction:Sigmoid:Shaping Factor

Specifies the shaping factor to be used when you set the DPD Apply DPD CFR Enabled property to True and the DPD Apply DPD CFR Method property to Sigmoid. Refer to DPD concept topic for more information about shaping factor. Details

DPD:Apply DPD:Crest Factor Reduction:Sigmoid:Shaping Threshold (dB)

Specifies the shaping threshold to be used when you set the DPD Apply DPD CFR Enabled property to True and the DPD Apply DPD CFR Method property to Sigmoid. This value is expressed in dB. Refer to DPD concept topic for more information about shaping threshold. Details

DPD:Apply DPD:User:DUT Average Input Power (dBm)

Specifies the average input power for the device under test that was used to compute the DPD Apply DPD User DPD Polynomial or the DPD Apply DPD User LUT Complex Gain when you set the DPD Apply DPD Config Input property to User. This value is expressed in dBm. Details

DPD:Apply DPD:User:DPD Model

Specifies the DPD model for applying DPD when you set the DPD Apply DPD Config Input property to User. Details

DPD:Apply DPD:User:Measurement Sample Rate (Hz)

Specifies the acquisition sample rate used to compute the DPD Apply DPD User DPD Polynomial or DPD Apply DPD User LUT Complex Gain when you set the DPD Apply DPD Config Input property to User. This value is expressed in Hz. Details

DPD:Apply DPD:User:Lookup Table:Type

Specifies the DPD Lookup Table (LUT) type when you set the DPD Apply DPD Config Input property to User. Details

DPD:Apply DPD:User:Lookup Table:Input Power

Specifies the input power array for the predistortion lookup table when you set the DPD Apply DPD User DPD Model property to Lookup Table. This value is expressed in dBm. Details

DPD:Apply DPD:User:Memory Polynomial:Order

Specifies the order of the DPD polynomial when you set the DPD Apply DPD User DPD Model property to Memory Polynomial or Generalized Memory Polynomial and set the DPD Apply DPD Config Input property to User. This value corresponds to Ka in the equation for generalized memory polynomial. Details

DPD:Apply DPD:User:Memory Polynomial:Memory Depth

Specifies the memory depth of the DPD polynomial when you set the DPD Apply DPD User DPD Model property to Memory Polynomial or Generalized Memory Polynomial and set the DPD Apply DPD Config Input property to User. This value corresponds to Qa in the equation for generalized memory polynomial. Details

DPD:Apply DPD:User:Memory Polynomial:Cross Terms:Lead Order

Specifies the lead order cross term of the DPD polynomial when you set the DPD Apply DPD User DPD Model property to Generalized Memory Polynomial and set the DPD Apply DPD Config Input property to User. This value corresponds to Kc in the equation for the generalized memory polynomial. Details

DPD:Apply DPD:User:Memory Polynomial:Cross Terms:Lag Order

Specifies the lag order cross term of the DPD polynomial when you set the DPD Apply DPD User DPD Model property to Generalized Memory Polynomial and set the DPD Apply DPD Config Input property to User. This value corresponds to Kb in the equation for the generalized memory polynomial. Details

DPD:Apply DPD:User:Memory Polynomial:Cross Terms:Lead Memory Depth

Specifies the lead memory depth cross term of the DPD polynomial when you set the DPD Apply DPD User DPD Model property to Generalized Memory Polynomial and set the DPD Apply DPD Config Input property to User. This value corresponds to Qc in the equation for the generalized memory polynomial. The value of the DPD Apply DPD User Mem Poly Lead Mem Depth property must be greater than or equal to the value of the DPD Apply DPD User Mem Poly Max Lead property. Details

DPD:Apply DPD:User:Memory Polynomial:Cross Terms:Lag Memory Depth

Specifies the lag memory depth cross term of the DPD polynomial when you set the DPD Apply DPD User DPD Model property to Memory Polynomial or Generalized Memory Polynomial and set the DPD Apply DPD Config Input property to User. This value corresponds to Qb in the equation for the generalized memory polynomial. Details

DPD:Apply DPD:User:Memory Polynomial:Cross Terms:Maximum Lead

Specifies the maximum lead stagger cross term of the DPD polynomial when you set the DPD Apply DPD User DPD Model property to Memory Polynomial or Generalized Memory Polynomial and set the DPD Apply DPD Config Input property to User. This value corresponds to Mc in the equation for the generalized memory polynomial. Details

DPD:Apply DPD:User:Memory Polynomial:Cross Terms:Maximum Lag

Specifies the maximum lag stagger cross term of the DPD polynomial when you set the DPD Apply DPD User DPD Model property to Memory Polynomial or Generalized Memory Polynomial and set the DPD Apply DPD Config Input property to User. This value corresponds to Mb in the equation for the generalized memory polynomial. Details

DPD:Results:Average Gain (dB)

Returns the average gain of the device under test. This value is expressed in dB. Details

DPD:Results:NMSE (dB)

Returns the normalized mean-squared DPD modeling error when you set the DPD NMSE Enabled property to True. This value is expressed in dB. NaN is returned when the DPD NMSE Enabled property is set to False. Details

IDPD:Measurement Enabled

Specifies whether to enable IDPD measurement. Details

IDPD:Equalizer:Mode

Specifies whether to enable equalization. Details

IDPD:Equalizer:Filter Length

Specifies the length of the equalizer filter to be trained. Details

IDPD:Measurement Sample Rate:Mode

Specifies acquisition sample rate configuration mode. Details

IDPD:Measurement Sample Rate:Sample Rate (S/s)

Specifies the acquisition sample rate, in S/s, when you set the IDPD Meas Sample Rate Mode is User. Details

IDPD:Signal Type

Specifies the type of reference waveform. Details

IDPD:Reference Waveform Idle Duration Present

Specifies whether the reference waveform contains idle duration or dead time. Details

IDPD:DUT Average Input Power (dBm)

Specifies the initial (first itertion) average power of the signal at the input port of the device under test. Details

IDPD:Averaging:Enabled

Specifies whether to enable averaging for the IDPD measurement. Details

IDPD:Averaging:Count

Specifies the number of acquisitions used for averaging when Averaging Enabled is TRUE. Details

IDPD:EVM Enabled

Specifies whether to enable EVM computation. Details

IDPD:EVM Unit

Specifies the units of the EVM results. Details

IDPD:Impairment Estimation Start

Specifies the start time of the impairment estimation interval relative to the start of the reference waveform. This value is expressed in seconds. Details

IDPD:Impairment Estimation Stop

Specifies the stop time of the impairment estimation interval relative to the start of the reference waveform. This value is expressed in seconds. Details

IDPD:Synchronization Estimation Start

Specifies the start time of the synchronization estimation interval relative to the start of the reference waveform. This value is expressed in seconds. Details

IDPD:Synchronization Estimation Stop

Specifies the stop time of the synchronization estimation interval relative to the start of the reference waveform. This value is expressed in seconds. Details

IDPD:Gain Expansion (dB)

Specifies the increase of input power relative to the peak power value of the reference signal. This value is expressed in dB. Details

IDPD:Target Gain (dB)

Specifies the Target gain when the configured pre-distorted waveform is non-empty. Details

IDPD:Power Linearity Tradeoff (%)

Specifies the gain tradeoff factor that sets the gain expected from the DUT after applying IDPD on the input waveform. This value is expressed as a percentage. Details

IDPD:Results:Gain (dB)

Returns the gain of the device under test. This value is expressed in dB. Details

IDPD:Results:Mean RMS EVM (% or dB)

Returns the ratio of L2 norm of difference between the normalized reference and acquired waveforms, to the L2 norm of the normalized reference waveform. This value is expressed either as a percentage or in dB depending on the configured IDPD EVM Unit, Details

IDPD:All Traces Enabled

Specifies whether to enable the traces to be stored and retrieved after performing the IDPD measurement. Details

IDPD:Number of Analysis Threads

Specifies the maximum number of threads used for parallelism for the IDPD measurement. Details

IQ:Measurement Enabled

Specifies whether to enable the I/Q measurement. Details

IQ:Sample Rate (S/s)

Specifies the acquisition sample rate. This value is expressed in samples per second (S/s). Details

IQ:Acquisition Time (s)

Specifies the acquisition time for the I/Q measurement. This value is expressed in seconds. Details

IQ:Pretrigger Time (s)

Specifies the pretrigger time for the I/Q measurement. This value is expressed in seconds. Details

IQ:Bandwidth:Auto

Specifies whether the measurement computes the minimum acquisition bandwidth. Details

IQ:Bandwidth:Value (Hz)

Specifies the minimum acquisition bandwidth when you set the IQ Bandwidth Auto property to False. This value is expressed in Hz. Details

IQ:Number of Records

Specifies the number of records to acquire. Details

IQ:Delete Record on Fetch

Specifies whether the measurement deletes the fetched record. Details

IM:Measurement Enabled

Specifies whether to enable the IM measurement. Details

IM:Frequency Definition

Specifies whether the tones and intermod frequencies are relative to the RF center frequency, or are absolute frequencies. Details

IM:Fundamental:Lower Tone Frequency (Hz)

Specifies the frequency of the tone that has a lower frequency among the two tones in the input signal. This value is expressed in Hz. Details

IM:Fundamental:Upper Tone Frequency (Hz)

Specifies the frequency of the tone that has a higher frequency among the two tones in the input signal. This value is expressed in Hz. Details

IM:Auto Intermods Setup Enabled

Specifies whether the measurement computes the intermod frequencies or uses user-specified frequencies. Details

IM:Maximum Intermod Order

Specifies the order up to which the RFmx driver measures odd order intermodulation products when you set the Auto Intermods Setup Enabled property to True. The lower and upper intermodulation products are measured for each order. Details

IM:Intermod:Number of Intermods

Specifies the number of intermods to measure when you set the IM Auto Intermods Setup Enabled property to False. Details

IM:Intermod:Enabled

Specifies whether to enable an intermod for the IM measurement. This property is not used when you set the IM Auto Intermods Setup Enabled property to True. Details

IM:Intermod:Order

Specifies the order of the intermod. This property is not used when you set the IM Auto Intermods Setup Enabled property to True. Details

IM:Intermod:Side

Specifies whether to measure intermodulation products corresponding to both lower and upper intermod frequencies or either one of them. This property is not used when you set the IM Auto Intermods Setup Enabled property to True. Details

IM:Intermod:Lower Frequency (Hz)

Specifies the frequency of the lower intermodulation product. This value is expressed in Hz. This property is not used when you set the IM Auto Intermods Setup Enabled property to True. Details

IM:Intermod:Upper Frequency (Hz)

Specifies the frequency of the upper intermodulation product. This value is expressed in Hz. This property is not used when you set the IM Auto Intermods Setup Enabled property to True. Details

IM:Measurement Method

Specifies the method used to perform the IM measurement. Details

IM:Local Peak Search Enabled

Specifies whether to enable a local peak search around the tone or intermod frequencies to account for small frequency offsets. Details

IM:RBW Filter:Auto Bandwidth

Specifies whether the measurement computes the RBW. Details

IM:RBW Filter:Bandwidth (Hz)

Specifies the bandwidth of the RBW filter used to sweep the acquired signal, when you set the IM RBW Auto property to False. This value is expressed in Hz. Details

IM:RBW Filter:Type

Specifies the response of the digital RBW filter. Details

IM:Sweep Time:Auto

Specifies whether the measurement computes the sweep time. Details

IM:Sweep Time:Interval (s)

Specifies the sweep time when you set the IM Sweep Time Auto property to False. This value is expressed in seconds. Details

IM:Averaging:Enabled

Specifies whether to enable averaging for the IM measurement. Details

IM:Averaging:Count

Specifies the number of acquisitions used for averaging when you set the IM Averaging Enabled property to True. Details

IM:Averaging:Type

Specifies the averaging type for averaging multiple spectrum acquisitions. The averaged spectrum is used for the IM measurement. Details

IM:FFT:Window

Specifies the FFT window type to use to reduce spectral leakage. Details

IM:FFT:Padding

Specifies the factor by which the time-domain waveform is zero-padded before an FFT. The FFT size is given by the following formula:

FFT size = waveform size * padding

This property is used only when the acquisition span is less than the device instantaneous bandwidth. Details

IM:Advanced:IF Output Power Offset Auto

Specifies whether the measurement computes an IF output power level offset for the intermods to maximize the dynamic range of the signal analyzer. This property is used only if you set the IM Meas Method property to Dynamic Range. Details

IM:Advanced:Near IF Output Power Offset (dB)

Specifies the offset by which to adjust the IF output power level for the intermods near the carrier channel to improve the dynamic range of the signal analyzer. This value is expressed in dB. This property is used only if you set the IM Meas Method property to Dynamic Range and the IM IF Output Power Offset Auto property to False. Details

IM:Advanced:Far IF Output Power Offset (dB)

Specifies the offset by which to adjust the IF output power level for the intermods that are far from the carrier channel to improve the dynamic range of the signal analyzer. This value is expressed in dB. This property is used only if you set the IM Meas Method property to Dynamic Range and the IM IF Output Power Offset Auto property to False. Details

IM:Amplitude Correction Type

Specifies whether the amplitude of the frequency bins, used in the measurement, is corrected for external attenuation at the RF center frequency, or at the individual frequency bins. Use the RFmxInstr Configure External Attenuation Table VI to configure the external attenuation table. Details

IM:All Traces Enabled

Specifies whether to enable the traces to be stored and retrieved after performing the IM measurement. Details

IM:Number of Analysis Threads

Specifies the maximum number of threads used for parallelism for the IM measurement.

The number of threads can range from 1 to the number of physical cores. The number of threads you set may not be used in calculations. The actual number of threads used depends on the problem size, system resources, data availability, and other considerations. Details

IM:Results:Fundamental:Lower Tone Power (dBm)

Returns the peak power measured around the lower tone frequency when you set the IM Local Peak Search Enabled property to True. This value is expressed in dBm. When you set the IM Local Peak Search Enabled property to False, the measurement returns the power at the lower tone frequency. Details

IM:Results:Fundamental:Upper Tone Power (dBm)

Returns the peak power measured around the upper tone frequency when you set the IM Local Peak Search Enabled property to True. This value is expressed in dBm. When you set the IM Local Peak Search Enabled property to False, the measurement returns the power at the upper tone frequency. Details

IM:Results:Intermod:Order

Returns the order of the intermod. Details

IM:Results:Intermod:Lower Intermod Power (dBm)

Returns the peak power measured around the lower intermod frequency when you set the IM Local Peak Search Enabled property to True. This value is expressed in dBm. When you set the IM Local Peak Search Enabled property to False, the measurement returns the power at the lower intermod frequency. Details

IM:Results:Intermod:Upper Intermod Power (dBm)

Returns the peak power measured around the upper intermod frequency when you set the IM Local Peak Search Enabled property to True. This value is expressed in dBm. When you set the IM Local Peak Search Enabled property to False, the measurement returns the power at the upper intermod frequency. Details

IM:Results:Intermod:Worst Case Intermod Absolute Power (dBm)

Returns the worst case intermod power that is equal to the maximum of the values of both the IM Results Upper Intermod Power and IM Results Lower Intermod Power results. This value is expressed in dBm. Details

IM:Results:Intermod:Lower Intermod Relative Power (dBc)

Returns the relative peak power measured around the lower intermod frequency when you set the IM Local Peak Search Enabled property to True. This value is expressed in dBc. When you set the IM Local Peak Search Enabled property to False, the measurement returns the relative power at the lower intermod frequency. Details

IM:Results:Intermod:Upper Intermod Relative Power (dBc)

Returns the relative peak power measured around the upper intermod frequency when you set the IM Local Peak Search Enabled property to True. This value is expressed in dBc. When you set the IM Local Peak Search Enabled property to False, the measurement returns the relative power at the upper intermod frequency. Details

IM:Results:Intermod:Worst Case Intermod Relative Power (dBc)

Returns the worst case intermod relative power that is equal to the maximum of the values of both the IM Results Upper Intermod Relative Power and IM Results Lower Intermod Relative Power results. This value is expressed in dBc. Details

IM:Results:Intermod:Lower Output Intercept Power (dBm)

Returns the lower output intercept power. This value is expressed in dBm. Refer to the IM topic for more information about this result. Details

IM:Results:Intermod:Upper Output Intercept Power (dBm)

Returns the upper output intercept power. This value is expressed in dBm. Refer to the IM topic for more information about this result. Details

IM:Results:Intermod:Worst Case Output Intercept Power (dBm)

Returns the worst case output intercept power which is equal to the minimum of the values of the IM Results Upper Output Intercept Power and IM Results Lower Output Intercept Power results. This value is expressed in dBm. Details

NF:Measurement Enabled

Enables the noise figure (NF) measurement. Details

NF:DUT Type

Specifies the type of DUT. Details

NF:Frequency Converter:LO Frequency (Hz)

Specifies the fixed LO frequency of the DUT when you set the NF DUT Type property to either Downconverter or Upconverter. This value is expressed in Hz. Details

NF:Frequency Converter:Frequency Context

Specifies the context of the NF Frequency List property. Details

NF:Frequency Converter:Sideband

Specifies the sideband when you set the NF DUT Type property to either Downconverter or Upconverter, and the NF Freq Converter Freq Context property to IF. Details

NF:Frequency Converter:Image Rejection (dB)

Specifies the gain ratio of the DUT at the image frequency to that at the RF frequency. This value is expressed in dB. Refer to NF concept help for more details. Details

NF:Frequency List (Hz)

Specifies the list of frequencies at which the noise figure (NF) of the DUT is computed. This value is expressed in Hz. Details

NF:Measurement Bandwidth (Hz)

Specifies the effective noise-bandwidth in which power measurements are performed for the noise figure (NF) measurement. This value is expressed in Hz. Details

NF:Measurement Interval (s)

Specifies the duration for which the signals are acquired at each frequency which you specify in the NF Freq List property. This value is expressed in seconds. Details

NF:Averaging:Enabled

Specifies whether to enable averaging for the noise figure (NF) measurement. Details

NF:Averaging:Count

Specifies the number of acquisitions used for averaging when you set the NF Averaging Enabled property to True. Details

NF:Calibration Setup ID

Associates a unique string identifier with the hardware setup used to perform calibration for the NF measurement. Details

NF:External Preamp:Present

Specifies if an external preamplifier is present in the signal path. Details

NF:External Preamp:Frequency (Hz)

Specifies the array of frequencies corresponding to the value of the NF External Preamp Gain property. Details

NF:External Preamp:Gain (dB)

Specifies the gain of the external preamp as a function of frequency. The value is expressed in dB. Details

NF:Loss:DUT Input:Compensation Enabled

Specifies whether the noise figure (NF) measurement accounts for ohmic losses between the noise source and the input port of the DUT, excluding the losses that are common to calibration and the measurement steps for the Y-Factor method, which are specified by the NF Y-Factor NS Loss property. Details

NF:Loss:DUT Input:Frequency (Hz)

Specifies an array of frequencies corresponding to the value of the NF Input Loss property. This value is expressed in Hz. Details

NF:Loss:DUT Input:Loss (dB)

Specifies an array of the ohmic losses between the noise source and the input port of the DUT, as a function of the frequency. This value is expressed in dB. This loss is accounted for by the NF measurement when you set the NF Input Loss Comp Enabled property to True. You must exclude any loss which is inherent to the noise source and is common between the calibration and measurement steps, and configure the loss using the NF Y-Factor NS Loss property.

Specify the frequencies at which the losses were measured using the NF Input Loss Freq property. Details

NF:Loss:DUT Input:Temperature (K)

Specifies the physical temperature of the ohmic loss elements considered in the NF Input Loss property. This value is expressed in kelvin. Details

NF:Loss:DUT Output:Compensation Enabled

Specifies whether the noise figure (NF) measurement accounts for ohmic losses between the output port of the DUT and the input port of the analyzer. Details

NF:Loss:DUT Output:Frequency (Hz)

Specifies the array of frequencies corresponding to the value of the NF Output Loss property. This value is expressed in Hz. Details

NF:Loss:DUT Output:Loss (dB)

Specifies the array of ohmic losses between the output port of the DUT and the input port of the analyzer, as a function of frequency. This value is expressed in dB. This loss is accounted for by the noise figure (NF) measurement when you set the NF Output Loss Comp Enabled property to True.

Specify the array of frequencies at which the losses were measured using the NF Output Loss Freq property. Details

NF:Loss:DUT Output:Temperature (K)

Specifies the physical temperature of the ohmic loss elements specified by the NF Output Loss property. This value is expressed in kelvin. Details

NF:Loss:Calibration:Compensation Enabled

Specifies whether the noise figure (NF) measurement accounts for the ohmic losses between the noise source and input port of the analyzer during the calibration step, excluding any losses which you have specified using the NF Y-Factor NS Loss property. Details

NF:Loss:Calibration:Frequency (Hz)

Specifies an array of frequencies corresponding to the ohmic losses between the source and the input port of the analyzer. This value is expressed in Hz. This property is applicable only when you set the NF Y-Factor Mode property to Calibrate and set the NF Meas Method property to Y-Factor, or when you set the NF Cold Source Mode property to Calibrate and set the NF Meas Method property to Cold Source. Details

NF:Loss:Calibration:Loss (dB)

Specifies the array of ohmic losses between the noise source and input port of the analyzer during calibration, as a function of frequency. This value is expressed in dB. This loss is accounted for by the noise figure (NF) measurement when you set the NF Cal Loss Comp Enabled property to True. You must exclude any loss specified by the NF Y-Factor NS Loss property.

This property specifies the frequencies at which the NF Cal Loss Freq property measures the losses. Details

NF:Loss:Calibration:Temperature (K)

Specifies the physical temperature of the ohmic loss elements specified by the NF Cal Loss property. This value is expressed in kelvin. Details

NF:Measurement Method

Specifies the measurement method used to perform the noise figure (NF) measurement. Refer to the NF concept topic for more information. Details

NF:Y-Factor:Mode

Specifies whether the measurement should calibrate the noise characteristics of the analyzer or compute the noise characteristics of the DUT when you set the NF Meas Method property to Y-Factor. Details

NF:Y-Factor:Noise Source:Type

Specifies the noise source type for performing the noise figure (NF) measurement when you set the NF Meas Method property to Y-Factor. Details

NF:Y-Factor:Noise Source:RF Signal Generator Port

Specifies the vector signal generator port to be configured to generate a noise signal when you set the NF Y-Factor NS Type property to RF Signal Generator. Details

NF:Y-Factor:Noise Source:ENR Frequency (Hz)

Specifies an array of frequencies corresponding to the effective noise ratio (ENR) values specified by the NF Y-Factor NS ENR property. This value is expressed in Hz. Details

NF:Y-Factor:Noise Source:ENR (dB)

Specifies the array of effective noise ratio (ENR) values of the noise source as a function of the frequency. This value is expressed in dB. The corresponding frequencies are specified by the NF Y-Factor NS ENR Freq property. This property is used only when you set the NF Meas Method property to Y-Factor. Details

NF:Y-Factor:Noise Source:Cold Temperature (K)

Specifies the calibrated cold noise temperature of the noise source used in the Y-Factor method. This value is expressed in kelvin. Details

NF:Y-Factor:Noise Source:Off Temperature (K)

Specifies the physical temperature of the noise source used in the Y-Factor method when the noise source is turned off. This value is expressed in kelvin. Details

NF:Y-Factor:Noise Source:Settling Time (s)

Specifies the time to wait till the noise source used in the Y-Factor method settles to either hot or cold state when the noise source is turned on or off. This property is used only when you set the NF Y-Factor NS Type property to External Noise Source. This value is expressed in seconds. Details

NF:Y-Factor:Noise Source:Loss:Compensation Enabled

Specifies whether the noise figure (NF) measurement should account for ohmic losses inherent to the noise source used in the Y-Factor method common to the calibration and measurement steps. Details

NF:Y-Factor:Noise Source:Loss:Frequency (Hz)

Specifies the frequencies corresponding to the ohmic loss inherent to the noise source used in the Y-Factor method specified by the NF Y-Factor NS Loss property. This value is expressed in Hz. Details

NF:Y-Factor:Noise Source:Loss:Loss (dB)

Specifies an array of the ohmic losses inherent to the noise source used in the Y-Factor method. This value is expressed in dB. This loss is accounted for by the NF measurement when you set the NF Y-Factor NS Loss Comp Enabled property to True. Details

NF:Y-Factor:Noise Source:Loss:Temperature (K)

Specifies the physical temperature of the ohmic loss elements specified in the NF Y-Factor NS Loss property. This value is expressed in kelvin. Details

NF:Cold Source:Mode

Specifies whether the measurement should calibrate the noise characteristics of the analyzer or compute the noise characteristics of the DUT for the cold source method. Details

NF:Cold Source:Input Termination:VSWR

Specifies an array of voltage standing wave ratios (VSWR) as a function of frequency of the microwave termination used as the noise source in cold source method. The corresponding array of frequencies is specified by the NF Cold Source Input Term VSWR Freq property. Details

NF:Cold Source:Input Termination:VSWR Frequency (Hz)

Specifies an array of frequencies corresponding to the voltage standing wave ratios (VSWR) of the microwave termination used in the cold source method as specified by the NF Cold Source Input Term VSWR property. This value is expressed in Hz. Details

NF:Cold Source:Input Termination:Temperature (K)

Specifies the physical temperature of the microwave termination used as the noise source in the cold source method. This value is expressed in kelvin. Details

NF:Cold Source:DUT:S-Parameters Frequency (Hz)

Specifies an array of frequencies corresponding to the s-parameters of the DUT specified by the NF Cold Source DUT S21, NF Cold Source DUT S12, NF Cold Source DUT S11, and NF Cold Source DUT S22 properties. This value is expressed in Hz. Details

NF:Cold Source:DUT:S21 (dB)

Specifies an array of the gains of the DUT as a function of frequency, when the output port of the DUT is terminated with an impedance equal to the characteristic impedance. This value is expressed in dB. The corresponding array of frequencies is specified by the NF Cold Source DUT S-Params Freq property. Details

NF:Cold Source:DUT:S12 (dB)

Specifies an array of the input-isolations of the DUT as a function of frequency, when the input port of the DUT is terminated with an impedance equal to the characteristic impedance. This value is expressed in dB. The corresponding array of frequencies is specified by the NF Cold Source DUT S-Params Freq property. Details

NF:Cold Source:DUT:S11 (dB)

Specifies an array of the input-reflections of the DUT as a function of frequency, when the output port of the DUT is terminated with an impedance equal to the characteristic impedance. This value is expressed in dB. Details

NF:Cold Source:DUT:S22 (dB)

Specifies an array of the output-reflections of the DUT as a function of frequency, when the input port of the DUT is terminated with an impedance equal to the characteristic impedance. This value is expressed in dB. The corresponding array of frequencies is specified by the NF Cold Source DUT S-Params Freq property. Details

NF:Advanced:Device Temperature Tolerance (deg C)

Specifies the tolerance for device temperature beyond which the calibration data is considered invalid. This value is expressed in Celsius. Details

NF:Number of Analysis Threads

Specifies the maximum number of threads used for parallelism for the noise figure (NF) measurement. Details

NF:Results:DUT:Noise Figure (dB)

Returns an array of the noise figures of the DUT measured at the frequencies specified by the NF Freq List property. This value is expressed in dB. Details

NF:Results:DUT:Noise Temperature (K)

Returns an array of the equivalent thermal noise temperatures of the DUT measured at the frequencies specified by the NF Freq List property. This value is expressed in kelvin. Details

NF:Results:DUT:Gain (dB)

Returns an array of the available gains of the DUT measured at the frequencies specified by the NF Freq List property. This value is expressed in dB. Details

NF:Results:Analyzer Noise Figure (dB)

Returns an array of the noise figures of the analyzer measured at the frequencies specified by the NF Freq List property. This value is expressed in dB. Details

NF:Results:Y-Factor:Measurement Y-Factor (dB)

Returns an array of the measurement Y-Factors measured at the frequencies specified by the NF Freq List property. This value is expressed in dB. A valid result is returned only when you set the NF Meas Method property to Y-Factor. Details

NF:Results:Y-Factor:Calibration Y-Factor (dB)

Returns an array of the calibration Y-Factors measured at the frequencies specified by the NF Freq List property. This value is expressed in dB. A valid result is returned only when you set the NF Meas Method property to Y-Factor. Details

NF:Results:Y-Factor:Hot Power (dBm)

Returns the array of powers measured at the frequencies specified by the NF Freq List property, when the noise source is enabled. This value is expressed in dBm. A valid result is returned only when you set the NF Meas Method property to Y-Factor. Details

NF:Results:Y-Factor:Cold Power (dBm)

Returns the array of powers measured at the frequencies specified by the NF Freq List property, when the noise source is disabled. This value is expressed in dBm. A valid result is returned only when you set the NF Meas Method property to Y-Factor. Details

NF:Results:Cold Source:Power (dBm)

Returns the power measured at the frequencies specified by the NF Freq List property. This value is expressed in dBm. A valid result is returned only when you set the NF Meas Method property to Cold-source. Details

PhaseNoise:Measurement Enabled

Specifies whether to enable the phase noise measurement. Details

PhaseNoise:Range Definition

Specifies how the measurement computes offset subranges. Details

PhaseNoise:Start Frequency (Hz)

Specifies the start frequency of the offset frequency range when you set the PhaseNoise Range Definition property to Auto. Details

PhaseNoise:Stop Frequency (Hz)

Specifies the stop frequency of the offset frequency range when you set the PhaseNoise Range Definition property to Auto. Details

PhaseNoise:RBW Percentage (%)

Specifies the RBW as a percentage of the start frequency of each subrange when you set the PhaseNoise Range Definition property to Auto. Details

PhaseNoise:Range:Number of Ranges

Specifies the number of manual ranges. Details

PhaseNoise:Range:Start Frequency (Hz)

Specifies the start frequency for the specified subrange when you set the PhaseNoise Range Definition property to Manual. Details

PhaseNoise:Range:Stop Frequency (Hz)

Specifies the stop frequency for the specified subrange when you set the PhaseNoise Range Definition property to Manual. Details

PhaseNoise:Range:RBW Percentage (%)

Specifies the RBW as a percentage of the PhaseNoise Range Start Freq property of the specified subrange when you set the PhaseNoise Range Definition property to Manual. Details

PhaseNoise:Range:Averaging Count

Specifies the averaging count for the specified subrange when you set the PhaseNoise Range Definition property to Manual. Details

PhaseNoise:Averaging Multiplier

Specifies the factor by which you increase the averaging count for each range. This setting applies to both Auto and Manual range definitions. Details

PhaseNoise:FFT Window

Specifies the FFT window to use. Details

PhaseNoise:Smoothing:Type

Specifies the smoothing type used to smoothen the measured log plot trace. Details

PhaseNoise:Smoothing:Percentage (%)

Specifies the number of trace points to use in the moving average filter as a percentage of total number of points in the log plot trace. Details

PhaseNoise:Spot Noise:Frequency List (Hz)

Specifies an array of offset frequencies at which the phase noise is measured using the smoothed log plot trace. Details

PhaseNoise:Integrated Noise:Range Definition

Specifies the frequency range for integrated noise measurements. Details

PhaseNoise:Integrated Noise:Start Frequency (Hz)

Specifies an array of the start frequencies for integrated noise measurement when you set the PhaseNoise Integrated Noise Range Definition property to Custom. Details

PhaseNoise:Integrated Noise:Stop Frequency (Hz)

Specifies an array of the stop frequencies for integrated noise measurement when you set the PhaseNoise Integrated Noise Range Definition property to Custom. Details

PhaseNoise:Spur Removal: Enabled

Specifies whether to remove spurs from the log plot trace. Details

PhaseNoise:Spur Removal: Peak Excursion (dB)

Specifies the peak excursion to be used when spur detection is performed.

Refer to the Phase Noise topic for more information on spur removal. Details

PhaseNoise:Cancellation:Enabled

Specifies whether to enable or disable the phase noise cancellation.

Refer to the Phase Noise topic for more information on phase noise cancellation. Details

PhaseNoise:Cancellation:Threshold (dB)

Specifies the minimum difference between the reference and pre-cancellation traces that must exist before cancellation is performed. Details

PhaseNoise:Cancellation:Frequency (Hz)

Specifies an array of frequencies where the reference phase noise has been measured. Details

PhaseNoise:Cancellation:Reference Phase Noise (dBc/Hz)

Specifies an array of reference phase noise at the frequencies specified by the PhaseNoise Cancellation Freq property . Details

PhaseNoise:All Traces Enabled

Specifies whether to enable the traces to be stored and retrieved after performing the Phase Noise measurement. Details

PhaseNoise:Results:Carrier Power (dBm)

Returns the measured carrier power. Details

PhaseNoise:Results:Carrier Frequency (Hz)

Returns the measured carrier frequency. Details

PhaseNoise:Results:Spot Phase Noise (dBc/Hz)

Returns the phase noise corresponding to the PhaseNoise Spot Noise Frequency List property by using the smoothed log plot trace. Details

PhaseNoise:Results:Integrated Noise:Phase Noise (dBc)

Returns the integrated phase noise. Details

PhaseNoise:Results:Integrated Noise:Residual PM (rad)

Returns the residual PM in radians. Details

PhaseNoise:Results:Integrated Noise:Residual PM (deg)

Returns the residual PM in degrees. Details

PhaseNoise:Results:Integrated Noise:Residual FM (Hz)

Returns the residual FM in Hz. Details

PhaseNoise:Results:Integrated Noise:Jitter (s)

Returns the jitter in seconds. Details

PAVT:Measurement Enabled

Specifies whether to enable the Phase Amplitude Versus Time (PAVT) measurement. Details

PAVT:Measurement Location Type

Specifies whether the location at which the segment is measured is indicated by time or trigger. Details

PAVT:Measurement Bandwidth (Hz)

Specifies the bandwidth over which the signal is measured. This value is expressed in Hz. Details

PAVT:Measurement Interval Mode

Specifies the mode of configuring the measurement interval. Details

PAVT:Number of Segments

Specifies the number of segments to be measured. Details

PAVT:Segment Type

Specifies the type of segment. Details

PAVT:Segment Start Time (s)

Specifies the start time of measurement of the segments. This value is expressed in seconds. You can use this property only when you set the PAVT Meas Location Type property to Time. Details

PAVT:Measurement Offset (s)

Specifies the time offset from the start of the segment for which the phase and amplitude, amplitude, or frequency error values are computed. This value is expressed in seconds. This property is valid only when you set the PAVT Meas Interval Mode property to Uniform. Details

PAVT:Measurement Length (s)

Specifies the duration within the segment over which the phase and amplitude, amplitude, or frequency error values are computed. This value is expressed in seconds. This property is valid only when you set the PAVT Meas Interval Mode property to Uniform. Details

PAVT:Segment Measurement Offset (s)

Specifies the time offset from the start of the segment for which the phase and amplitude, amplitude, or frequency error values are computed. This value is expressed in seconds. This property is valid only when you set the PAVT Meas Interval Mode property to Variable. Details

PAVT:Segment Measurement Length (s)

Specifies the duration within each segment over which the phase and amplitude, amplitude, or frequency error values are computed. This value is expressed in seconds. This property is valid when you set the PAVT Meas Interval Mode property to Variable. Details

PAVT:Phase Unwrap Enabled

Specifies whether the phase measurement results are unwrapped or wrapped. Details

PAVT:Frequency Offset Correction Enabled

Specifies whether to enable frequency offset correction for the measurement. Details

PAVT:Frequency Tracking Enabled

Specifies whether to enable frequency offset correction per segment for the measurement. While you set this property to True, ensure that the PAVT Freq Offset Correction Enabled property is set to True and the PAVT Segment Type property is set to Phase and Amplitude. Details

PAVT:All Traces Enabled

Specifies whether to enable the traces to be stored and retrieved after performing the PAVT measurement. Details

PAVT:Results:Mean Relative Phase (deg)

Returns the mean phase of the segment, relative to the phase of the reference segment. This value is expressed in degrees.

Details

PAVT:Results:Mean Relative Amplitude (dB)

Returns the mean amplitude of the segment, relative to the amplitude of the reference segment. This value is expressed in dB.

Mean Relative Amplitude = ai - ar

ai is the absolute amplitude of the segment i, expressed in dBm

ar is the absolute amplitude of the reference segment r, expressed in dBm

where,

r = 1, if Segment0 is configured as Frequency Error Measurement segment

r = 0, otherwise Details

PAVT:Results:Mean Absolute Phase (deg)

Returns the mean absolute phase of the segment. This value is expressed in degrees. Details

PAVT:Results:Mean Absolute Amplitude (dBm)

Returns the mean absolute amplitude of the segment. This value is expressed in dBm. Details

PAVT:Results:Frequency Error Mean(Hz)

Returns the mean frequency error of the segment. This value is expressed in Hz Details

Advanced:Auto Level Initial Reference Level (dBm)

Specifies the initial reference level, in dBm, which the RFmxSpecAn Auto Level VI uses to estimate the peak power of the input signal. Details

Advanced:Limited Configuration Change

Specifies the set of properties that are considered by RFmx in the locked signal configuration state. Details

Advanced:Selected Path

Details

Result Fetch Timeout (s)

Specifies the time, in seconds, to wait before results are available in the RFmxSpecAn Property Node. Set this value to a time longer than expected for fetching the measurement. A value of -1 specifies that the RFmxSpecAn Property Node waits until the measurement is complete. Details