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

© 2014–2025 National Instruments Corporation. All rights reserved.

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.
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.
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.
ACP:Advanced:Sequential FFT Size
Specifies the FFT size when you set the ACP Meas Method property to Sequential FFT.
ACP:All Traces Enabled
Specifies whether to enable the traces to be stored and retrieved after performing the ACP measurement.
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.
ACP:Averaging:Count
Specifies the number of acquisitions used for averaging when you set the ACP Averaging Enabled property to True.
ACP:Averaging:Enabled
Specifies whether to enable averaging for the ACP measurement.
ACP:Averaging:Type
Specifies the averaging type for averaging multiple spectrum acquisitions. The averaged spectrum is used for ACP measurement.
ACP:Carrier:Frequency (Hz)
Specifies the center frequency of the carrier, relative to the RF center frequency. This value is expressed in Hz.
ACP:Carrier:Integration Bandwidth (Hz)
Specifies the frequency range over which the measurement integrates the carrier power. This value is expressed in Hz.
ACP:Carrier:Mode
Specifies whether to consider the carrier power as part of the total carrier power measurement.
ACP:Carrier:Number of Carriers
Specifies the number of carriers.
ACP:Carrier:RRC Filter:Alpha
Specifies the roll-off factor for the root-raised-cosine (RRC) filter.
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.
ACP:Detector:Points
Specifies the number of trace points after the detector is applied.
ACP:Detector:Type
Specifies the type of detector to be used.
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.
ACP:FFT:Overlap Mode
Specifies the overlap mode when you set the ACP Meas Method property to Sequential FFT.
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:
ACP:FFT:Window
Specifies the FFT window type to use to reduce spectral leakage.
ACP:Measurement Enabled
Specifies whether to enable the ACP measurement.
ACP:Measurement Method
Specifies the method for performing the ACP measurement.
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.
ACP:Noise Calibration:Averaging:Auto
Specifies whether RFmx automatically computes the averaging count used for instrument noise calibration.
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.
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.
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.
ACP:Noise Compensation:Type
Specifies the noise compensation type. Refer to the Noise Compensation Algorithm topic for more information.
ACP:Number of Analysis Threads
Specifies the maximum number of threads used for parallelism for adjacent channel power (ACP) measurement.
ACP:Offset:Enabled
Specifies whether to enable the offset channel for ACP measurement.
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.
ACP:Offset:Frequency Definition
Specifies the offset frequency definition used to specify the ACP Offset Freq property.
ACP:Offset:Integration Bandwidth (Hz)
Specifies the frequency range, over which the measurement integrates the offset channel power. This value is expressed in Hz.
ACP:Offset:Number of Offsets
Specifies the number of offset channels.
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.
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.
ACP:Offset:RRC Filter:Alpha
Specifies the roll-off factor for the root-raised-cosine (RRC) filter.
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.
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.
ACP:Offset:Sideband
Specifies whether the offset channel is present on one side, or on both sides of the carrier.
ACP:Power Units
Specifies the units for the absolute power.
ACP:RBW Filter:Auto Bandwidth
Specifies whether the measurement computes the resolution bandwidth (RBW).
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.
ACP:RBW Filter:Bandwidth Definition
Specifies the bandwidth definition which you use to specify the value of the ACP RBW property.
ACP:RBW Filter:Type
Specifies the shape of the digital resolution bandwidth (RBW) filter.
ACP:Results:Carrier:Absolute Power (dBm or dBm/Hz)
Returns the measured carrier power.
ACP:Results:Carrier:Frequency (Hz)
Returns the center frequency of the carrier relative to the Center Frequency property. This value is expressed in Hz.
ACP:Results:Carrier:Integration Bandwidth (Hz)
Returns the frequency range, over which the measurement integrates the carrier power. This value is expressed in Hz.
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.
ACP:Results:Frequency Resolution (Hz)
Returns the frequency bin spacing of the spectrum acquired by the measurement. This value is expressed in Hz.
ACP:Results:Lower Offset:Absolute Power (dBm or dBm/Hz)
Returns the lower offset channel power.
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.
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.
ACP:Results:Lower Offset:Integration Bandwidth (Hz)
Returns the integration bandwidth used to measure the power in the lower offset channel.
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.
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.
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.
ACP:Results:Upper Offset:Absolute Power (dBm or dBm/Hz)
Returns the upper offset channel power.
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.
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.
ACP:Results:Upper Offset:Integration Bandwidth (Hz)
Returns the integration bandwidth used to measure the power in the upper offset channel.
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.
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.
ACP:Sweep Time:Auto
Specifies whether the measurement computes the sweep time.
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.
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).
AMPM:AM to AM Curve Fit:Type
Specifies the polynomial approximation cost-function of the device under test AM-to-AM characteristic.
AMPM:AM to AM Enabled
Specifies whether to enable the results that rely on the AM to AM characteristics.
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.
AMPM:AM to PM Curve Fit:Type
Specifies the polynomial approximation cost-function of the device under test AM-to-PM characteristic.
AMPM:AM to PM Enabled
Specifies whether to enable the results that rely on AM to PM characteristics.
AMPM:All Traces Enabled
Specifies whether to enable the traces to be stored and retrieved after performing the AMPM measurement.
AMPM:Averaging:Count
Specifies the number of acquisitions used for averaging when you set the AMPM Averaging Enabled property to True.
AMPM:Averaging:Enabled
Specifies whether to enable averaging for the AMPM measurement.
AMPM:Carrier:Auto Carrier Detection Enabled
Specifies if auto detection of carrier offset and carrier bandwidth is enabled.
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.
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.
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.
AMPM:Compression Point:Enabled
Enables computation of compression points corresponding to the respective compression levels specified by the AMPM Compression Point Level property.
AMPM:Compression Point:Gain:Reference
Specifies the gain reference for compression point calculation.
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.
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.
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.
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.
AMPM:EVM Enabled
Specifies whether to enable the AMPM Results Mean RMS EVM property.
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.
AMPM:Equalizer:Mode
Specifies whether the measurement equalizes the channel.
AMPM:Frequency Offset Correction Enabled
Enables frequency offset correction for the measurement.
AMPM:IQ Origin Offset Correction Enabled
Enables IQ origin offset correction for the measurement.
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.
AMPM:Measurement Enabled
Specifies whether to enable the AMPM measurement.
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.
AMPM:Measurement Sample Rate:Mode
Specifies whether the acquisition sample rate is based on the reference waveform.
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).
AMPM:Number of Analysis Threads
Specifies the maximum number of threads used for parallelism for the AMPM measurement.
AMPM:Reference Power Type
Specifies the reference power used for AM to AM and AM to PM traces.
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.
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.
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.
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.
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.
AMPM:Results:Compression Point:Gain Reference (dB)
Returns the gain reference used for compression point calculation. This value is expressed in dB.
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.
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.
AMPM:Results:Gain Error Range (dB)
Returns the peak-to-peak deviation of the device under test gain. This value is expressed in dB.
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.
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.
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.
AMPM:Results:Peak Reference Power (dBm)
Returns the peak reference power. This value is expressed in dBm.
AMPM:Results:Peak Reference Power Gain (dB)
Returns the gain at the peak reference power. This value is expressed in dB.
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.
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.
AMPM:Synchronization Method
Specifies the method used for synchronization of acquired waveform with reference waveform.
AMPM:Threshold:Definition
Specifies the definition to use for thresholding acquired and reference waveform.
AMPM:Threshold:Enabled
Specifies whether to enable thresholding of the acquired samples used for the AMPM measurement.
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.
AMPM:Threshold:Type
Specifies the reference for the power level used for thresholding.
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.
Advanced:Limited Configuration Change
Specifies the set of properties that are considered by RFmx in the locked signal configuration state.
Advanced:Selected Path
CCDF:All Traces Enabled
Specifies whether to enable the traces to be stored and retrieved after performing the CCDF measurement.
CCDF:Measurement Enabled
Specifies whether to enable the CCDF measurement.
CCDF:Measurement Interval (s)
Specifies the acquisition time for the CCDF measurement. This value is expressed in seconds.
CCDF:Number of Analysis Threads
Specifies the maximum number of threads used for parallelism for CCDF measurement.
CCDF:Number of Records
Specifies the number of acquisitions used for the CCDF measurement.
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.
CCDF:RBW Filter:RRC Alpha
Specifies the roll-off factor for the root-raised-cosine (RRC) filter.
CCDF:RBW Filter:Type
Specifies the shape of the digital resolution bandwidth (RBW) filter.
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.
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.
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.
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.
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.
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.
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.
CCDF:Results:Mean Power Percentile (%)
Returns the percentage of samples that have more power than the mean power.
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.
CCDF:Results:Peak Power (dB)
Returns the peak power of the acquired signal, relative to the mean power.
CCDF:Threshold:Enabled
Specifies whether to enable thresholding of the acquired samples to be used for the CCDF measurement.
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.
CCDF:Threshold:Type
Specifies the reference for the power level used for thresholding.
CHP:All Traces Enabled
Specifies whether to enable the traces to be stored and retrieved after performing the CHP measurement.
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.
CHP:Averaging:Count
Specifies the number of acquisitions used for averaging when you set the CHP Averaging Enabled property to True.
CHP:Averaging:Enabled
Specifies whether to enable averaging for the CHP measurement.
CHP:Averaging:Type
Specifies the averaging type for averaging multiple spectrum acquisitions. The averaged spectrum is used for CHP measurement.
CHP:Carrier:Frequency (Hz)
Specifies the center frequency of the carrier, relative to the RF center frequency. This value is expressed in Hz.
CHP:Carrier:Integration Bandwidth (Hz)
Specifies the frequency range, over which the measurement integrates the power. This value is expressed in Hz.
CHP:Carrier:Number of Carriers
Specifies the number of carriers.
CHP:Carrier:RRC Filter:Alpha
Specifies the roll-off factor of the root-raised-cosine (RRC) filter.
CHP:Carrier:RRC Filter:Enabled
Specifies whether to apply the root-raised-cosine (RRC) filter on the acquired channel before measuring the channel power.
CHP:Detector:Points
Specifies the number of trace points after the detector is applied.
CHP:Detector:Type
Specifies the type of detector to be used.
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:
CHP:FFT:Window
Specifies the FFT window type to use to reduce spectral leakage.
CHP:Measurement Enabled
Specifies whether to enable the CHP measurement.
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.
CHP:Noise Calibration:Averaging:Auto
Specifies whether RFmx automatically computes the averaging count used for instrument noise calibration.
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.
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.
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.
CHP:Noise Compensation:Type
Specifies the noise compensation type. Refer to the Noise Compensation Algorithm topic for more information.
CHP:Number of Analysis Threads
Specifies the maximum number of threads used for parallelism for CHP measurement.
CHP:RBW Filter:Auto Bandwidth
Specifies whether the measurement computes the resolution bandwidth (RBW).
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.
CHP:RBW Filter:Bandwidth Definition
Specifies the bandwidth definition that you use to specify the value of the CHP RBW property.
CHP:RBW Filter:Type
Specifies the shape of the digital resolution bandwidth (RBW) filter.
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.
CHP:Results:Carrier:Frequency (Hz)
Returns the center frequency of the carrier relative to the Center Frequency property. This value is expressed in Hz.
CHP:Results:Carrier:Integration Bandwidth (Hz)
Returns the frequency range over which the measurement integrates the carrier power. This value is expressed in Hz.
CHP:Results:Carrier:PSD (dBm/Hz)
Returns the power spectral density of the channel. This value is expressed in dBm/Hz.
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.
CHP:Results:Frequency Resolution (Hz)
Returns the frequency bin spacing of the spectrum acquired by the measurement. This value is expressed in Hz.
CHP:Results:Total Carrier Power (dBm)
Returns the total integrated carrier power of all carriers, in dBm.
CHP:Span (Hz)
Specifies the frequency range around the center frequency, to acquire for the measurement. This value is expressed in Hz.
CHP:Sweep Time:Auto
Specifies whether the measurement computes the sweep time.
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.
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.
DPD:All Traces Enabled
Specifies whether to enable the traces to be stored and retrieved after performing the DPD measurement.
DPD:Apply DPD:Configuration Input
Specifies whether to use the configuration parameters used by the DPD measurement for applying DPD.
DPD:Apply DPD:Crest Factor Reduction:Enabled
Specifies whether to enable the crest factor reduction (CFR) on the pre-distorted waveform.
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.
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.
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.
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.
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.
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.
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.
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.
DPD:Apply DPD:Lookup Table Correction Type
Specifies the predistortion type when you set the DPD Model property to Lookup Table.
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.
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.
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.
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.
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.
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. Actual sample rate may differ from requested sample rate in order to ensure a waveform is phase continuous.
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 Q_b in the equation for the generalized memory polynomial.
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 K_b in the equation for the generalized memory polynomial.
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 Q_c 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.
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 K_c in the equation for the generalized memory polynomial.
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 M_b in the equation for the generalized memory polynomial.
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 M_c in the equation for the generalized memory polynomial.
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 Q_a in the equation for generalized memory polynomial.
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 K_a in the equation for generalized memory polynomial.
DPD:Averaging:Count
Specifies the number of acquisitions used for averaging when you set the DPD Averaging Enabled property to True.
DPD:Averaging:Enabled
Specifies whether to enable averaging for the DPD measurement.
DPD:Carrier:Auto Carrier Detection Enabled
Specifies if auto detection of carrier offset and carrier bandwidth is enabled.
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.
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.
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.
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.
DPD:DVR:DDR Enabled
Specifies whether to enable the Dynamic Deviation Reduction (DDR) terms which are a subset of Decomposed Vector Rotation Model when you set the DPD Model property to Decomposed Vector Rotation. For more details, refer to the equation for the decomposed vector rotation model.
DPD:DVR:Linear Memory Depth
Specifies the linear memory depth of the Decomposed Vector Rotation model when you set the DPD Model property to Decomposed Vector Rotation. This value corresponds to M_l in the equation for the decomposed vector rotation model.
DPD:DVR:Nonlinear Memory Depth
Specifies the nonlinear memory depth of the Decomposed Vector Rotation model when you set the DPD Model property to Decomposed Vector Rotation. This value corresponds to M_nl in the equation for the decomposed vector rotation model.
DPD:DVR:Number of Segments
Specifies the number of segments of the Decomposed Vector Rotation model when you set the DPD Model property to Decomposed Vector Rotation. This value corresponds to K in the equation for the Decomposed Vector Rotation model.
DPD:Frequency Offset Correction Enabled
Specifies whether to enable frequency offset correction for the DPD measurement.
DPD:IQ Origin Offset Correction Enabled
Enables the IQ origin offset correction for the measurement.
DPD:Iterative DPD Enabled
Specifies whether to enable iterative computation of the DPD Results DPD Polynomial using indirect-learning architecture.
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.
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.
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.
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.
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.
DPD:Lookup Table:Threshold:Definition
Specifies the definition to use for thresholding acquired and reference waveform.
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.
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.
DPD:Lookup Table:Threshold:Type
Specifies the reference for the power level used for thresholding.
DPD:Lookup Table:Type
Specifies the type of the DPD lookup table (LUT).
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.
DPD:Measurement Enabled
Specifies whether to enable DPD measurement.
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.
DPD:Measurement Mode
Specifies if the training waveform required for the extraction of the DPD model coefficients is acquired from the hardware or is configured by the user.
DPD:Measurement Sample Rate:Mode
Specifies the acquisition sample rate configuration mode.
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). Actual sample rate may differ from requested sample rate in order to ensure a waveform is phase continuous.
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 Q_b in the equation for the generalized memory polynomial.
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 K_b in the equation for the generalized memory polynomial.
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 Q_c 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.
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 K_c in the equation for the generalized memory polynomial.
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 M_b in the equation for the generalized memory polynomial.
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 M_c in the equation for the generalized memory polynomial.
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 Q_a in the equation for the generalized memory polynomial.
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.
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.
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.
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 K_a in the equation for the generalized memory polynomial.
DPD:Model
Specifies the DPD model used by the DPD measurement.
DPD:NMSE Enabled
Specifies whether to enable the normalized mean-squared error (NMSE) computation.
DPD:Number of Analysis Threads
Specifies the maximum number of threads used for parallelism of the DPD measurement.
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.
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.
DPD:Pre-DPD:Crest Factor Reduction:Enabled
Specifies whether to enable the crest factor reduction (CFR) when applying pre-DPD signal conditioning.
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.
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.
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.
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.
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.
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.
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.
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.
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.
DPD:Results:Average Gain (dB)
Returns the average gain of the device under test. This value is expressed in dB.
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.
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.
DPD:Synchronization Method
Specifies the method used for synchronization of the acquired waveform with the reference waveform.
DPD:Target Gain Type
Specifies the gain expected from the DUT after applying DPD on the input waveform.
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.
FCnt:All Traces Enabled
Specifies whether to enable the traces to be stored and retrieved after performing the FCnt measurement.
FCnt:Averaging:Count
Specifies the number of acquisitions used for averaging when you set the FCnt Averaging Enabled property to True.
FCnt:Averaging:Enabled
Specifies whether to enable averaging for the FCnt measurement.
FCnt:Averaging:Type
Specifies the averaging type for the FCnt measurement. The averaged instantaneous signal phase difference is used for the measurement.
FCnt:Measurement Enabled
Specifies whether to enable the FCnt measurement.
FCnt:Measurement Interval (s)
Specifies the acquisition time for the FCnt measurement. This value is expressed in seconds.
FCnt:Number of Analysis Threads
Specifies the maximum number of threads used for parallelism for FCnt measurement.
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.
FCnt:RBW Filter:RRC Alpha
Specifies the roll-off factor for the root-raised-cosine (RRC) filter.
FCnt:RBW Filter:Type
Specifies the shape of the digital resolution bandwidth (RBW) filter.
FCnt:Results:Allan Deviation (Hz)
Returns the two-sample deviation of the measured frequency.
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.
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.
FCnt:Results:Mean Phase (deg)
Returns the net phase of the vector sum of the I/Q samples used for frequency measurement.
FCnt:Threshold:Enabled
Specifies whether to enable thresholding of the acquired samples to be used for the FCnt measurement.
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.
FCnt:Threshold:Type
Specifies the reference for the power level used for thresholding.
Harm:All Traces Enabled
Specifies whether to enable the traces to be stored and retrieved after performing the Harmonics measurement.
Harm:Auto Setup Enabled
Specifies whether to enable auto configuration of successive harmonics.
Harm:Averaging:Count
Specifies the number of acquisitions used for averaging when you set the Harm Averaging Enabled property to True.
Harm:Averaging:Enabled
Specifies whether to enable averaging for the Harmonics measurement.
Harm:Averaging:Type
Specifies the averaging type for the Harmonics measurement. The averaged power trace is used for the measurement.
Harm:Fundamental:Measurement Interval (s)
Specifies the acquisition time for the Harmonics measurement of the fundamental signal. This value is expressed in seconds.
Harm:Fundamental:RBW Filter:Alpha
Specifies the roll-off factor for the root-raised-cosine (RRC) filter.
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.
Harm:Fundamental:RBW Filter:Type
Specifies the shape of the digital resolution bandwidth (RBW) filter.
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.
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.
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.
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.
Harm:Measurement Enabled
Specifies whether to enable the Harmonics measurement.
Harm:Measurement Method
Specifies the method used to perform the harmonics measurement.
Harm:Noise Compensation Enabled
Specifies whether to enable compensation of the average harmonic powers for inherent noise floor of the signal analyzer.
Harm:Number of Analysis Threads
Specifies the maximum number of threads used for parallelism for Harmonics measurement.
Harm:Number of Harmonics
Specifies the number of harmonics, including fundamental, to measure.
Harm:Results:Average Fundamental Power (dBm)
Returns the average power measured at the fundamental frequency. This value is expressed in dBm.
Harm:Results:Fundamental Frequency (Hz)
Returns the frequency used as the fundamental frequency. This value is expressed in Hz.
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.
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.
Harm:Results:Harmonic:Frequency (Hz)
Returns the RF frequency of the harmonic. This value is expressed in Hz.
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.
Harm:Results:Total Harmonic Distortion (%)
Returns the total harmonics distortion (THD), measured as a percentage of the power in the fundamental signal.
IDPD:All Traces Enabled
Specifies whether to enable the traces to be stored and retrieved after performing the IDPD measurement.
IDPD:Averaging:Count
Specifies the number of acquisitions used for averaging when Averaging Enabled is TRUE.
IDPD:Averaging:Enabled
Specifies whether to enable averaging for the IDPD measurement.
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.
IDPD:EVM Enabled
Specifies whether to enable EVM computation.
IDPD:EVM Unit
Specifies the units of the EVM results.
IDPD:Equalizer:Filter Length
Specifies the length of the equalizer filter to be trained.
IDPD:Equalizer:Mode
Specifies whether to enable equalization.
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.
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.
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.
IDPD:Measurement Enabled
Specifies whether to enable IDPD measurement.
IDPD:Measurement Sample Rate:Mode
Specifies acquisition sample rate configuration mode.
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. Users should read back the actual sample rate used by the measurement. Actual sample rate may differ from requested sample rate in order to ensure a waveform is phase continuous.
IDPD:Number of Analysis Threads
Specifies the maximum number of threads used for parallelism for the IDPD measurement.
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.
IDPD:Reference Waveform Idle Duration Present
Specifies whether the reference waveform contains idle duration or dead time.
IDPD:Results:Gain (dB)
Returns the gain of the device under test. This value is expressed in dB.
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,
IDPD:Signal Type
Specifies the type of reference waveform.
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.
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.
IDPD:Target Gain (dB)
Specifies the Target gain when the configured pre-distorted waveform is non-empty.
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.
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.
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.
IM:All Traces Enabled
Specifies whether to enable the traces to be stored and retrieved after performing the IM measurement.
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.
IM:Auto Intermods Setup Enabled
Specifies whether the measurement computes the intermod frequencies or uses user-specified frequencies.
IM:Averaging:Count
Specifies the number of acquisitions used for averaging when you set the IM Averaging Enabled property to True.
IM:Averaging:Enabled
Specifies whether to enable averaging for the IM measurement.
IM:Averaging:Type
Specifies the averaging type for averaging multiple spectrum acquisitions. The averaged spectrum is used for the IM measurement.
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:
IM:FFT:Window
Specifies the FFT window type to use to reduce spectral leakage.
IM:Frequency Definition
Specifies whether the tones and intermod frequencies are relative to the RF center frequency, or are absolute frequencies.
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.
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.
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.
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.
IM:Intermod:Number of Intermods
Specifies the number of intermods to measure when you set the IM Auto Intermods Setup Enabled property to False.
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.
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.
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.
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.
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.
IM:Measurement Enabled
Specifies whether to enable the IM measurement.
IM:Measurement Method
Specifies the method used to perform the IM measurement.
IM:Number of Analysis Threads
Specifies the maximum number of threads used for parallelism for the IM measurement.
IM:RBW Filter:Auto Bandwidth
Specifies whether the measurement computes the RBW.
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.
IM:RBW Filter:Type
Specifies the response of the digital RBW filter.
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.
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.
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.
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.
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.
IM:Results:Intermod:Order
Returns the order of the intermod.
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.
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.
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.
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.
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.
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.
IM:Sweep Time:Auto
Specifies whether the measurement computes the sweep time.
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.
IQ:Acquisition Time (s)
Specifies the acquisition time for the I/Q measurement. This value is expressed in seconds.
IQ:Bandwidth:Auto
Specifies whether the measurement computes the minimum acquisition bandwidth.
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.
IQ:Delete Record on Fetch
Specifies whether the measurement deletes the fetched record.
IQ:Measurement Enabled
Specifies whether to enable the I/Q measurement.
IQ:Measurement Mode
Specifies the mode for performing the IQ measurement.
IQ:Number of Records
Specifies the number of records to acquire.
IQ:Pretrigger Time (s)
Specifies the pretrigger time for the I/Q measurement. This value is expressed in seconds.
IQ:Sample Rate (S/s)
Specifies the acquisition sample rate. This value is expressed in samples per second (S/s).
List:Number of Steps
Specifies the number of active steps in a list.
List:Step:Timer Duration (s)
Specifies the duration of a given list step. This value is expressed in seconds.
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.
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.
NF:Averaging:Count
Specifies the number of acquisitions used for averaging when you set the NF Averaging Enabled property to True.
NF:Averaging:Enabled
Specifies whether to enable averaging for the noise figure (NF) measurement.
NF:Calibration Setup ID
Associates a unique string identifier with the hardware setup used to perform calibration for the NF measurement.
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.
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.
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.
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.
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.
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.
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.
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.
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.
NF:DUT Type
Specifies the type of DUT.
NF:External Preamp:Frequency (Hz)
Specifies the array of frequencies corresponding to the value of the NF External Preamp Gain property.
NF:External Preamp:Gain (dB)
Specifies the gain of the external preamp as a function of frequency. The value is expressed in dB.
NF:External Preamp:Present
Specifies if an external preamplifier is present in the signal path.
NF:Frequency Converter:Frequency Context
Specifies the context of the NF Frequency List property.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
NF:Measurement Enabled
Enables the noise figure (NF) measurement.
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.
NF:Measurement Method
Specifies the measurement method used to perform the noise figure (NF) measurement. Refer to the NF concept topic for more information.
NF:Number of Analysis Threads
Specifies the maximum number of threads used for parallelism for the noise figure (NF) measurement.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
OBW:All Traces Enabled
Specifies whether to enable the traces to be stored and retrieved after performing the OBW.
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.
OBW:Averaging:Count
Specifies the number of acquisitions used for averaging when you set the OBW Averaging Enabled property to True.
OBW:Averaging:Enabled
Specifies whether to enable averaging for the OBW measurement.
OBW:Averaging:Type
Specifies the averaging type for averaging multiple spectrum acquisitions. The averaged spectrum is used for OBW measurement.
OBW:Bandwidth Percentage (%)
Specifies the percentage of the total power that is contained in the OBW.
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:
OBW:FFT:Window
Specifies the FFT window type to use to reduce spectral leakage.
OBW:Measurement Enabled
Specifies whether to enable OBW measurement.
OBW:Number of Analysis Threads
Specifies the maximum number of threads used for parallelism for the OBW measurement.
OBW:Power Units
Specifies the units for the absolute power.
OBW:RBW Filter:Auto Bandwidth
Specifies whether the measurement computes the resolution bandwidth (RBW).
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.
OBW:RBW Filter:Bandwidth Definition
Specifies the bandwidth definition that you use to specify the value of the OBW RBW property.
OBW:RBW Filter:Type
Specifies the shape of the digital resolution bandwidth (RBW) filter.
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.
OBW:Results:Frequency Resolution (Hz)
Returns the frequency bin spacing of the spectrum acquired by the OBW measurement. This value is expressed in Hz.
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.
OBW:Results:Start Frequency (Hz)
Returns the start frequency of the OBW. This value is expressed in Hz.
OBW:Results:Stop Frequency (Hz)
Returns the stop frequency of the OBW. This value is expressed in Hz.
OBW:Span (Hz)
Specifies the frequency range around the center frequency, to acquire for the measurement. This value is expressed in Hz.
OBW:Sweep Time:Auto
Specifies whether the measurement computes the sweep time.
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.
PAVT:All Traces Enabled
Specifies whether to enable the traces to be stored and retrieved after performing the PAVT measurement.
PAVT:Frequency Offset Correction Enabled
Specifies whether to enable frequency offset correction for the measurement.
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.
PAVT:Measurement Bandwidth (Hz)
Specifies the bandwidth over which the signal is measured. This value is expressed in Hz.
PAVT:Measurement Enabled
Specifies whether to enable the Phase Amplitude Versus Time (PAVT) measurement.
PAVT:Measurement Interval Mode
Specifies the mode of configuring the measurement interval.
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.
PAVT:Measurement Location Type
Specifies whether the location at which the segment is measured is indicated by time or trigger.
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.
PAVT:Number of Segments
Specifies the number of segments to be measured.
PAVT:Phase Unwrap Enabled
Specifies whether the phase measurement results are unwrapped or wrapped.
PAVT:Results:Frequency Error Mean(Hz)
Returns the mean frequency error of the segment. This value is expressed in Hz
PAVT:Results:Mean Absolute Amplitude (dBm)
Returns the mean absolute amplitude of the segment. This value is expressed in dBm.
PAVT:Results:Mean Absolute Phase (deg)
Returns the mean absolute phase of the segment. This value is expressed in degrees.
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.
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.
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.
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.
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.
PAVT:Segment Type
Specifies the type of segment.
PhaseNoise:All Traces Enabled
Specifies whether to enable the traces to be stored and retrieved after performing the Phase Noise measurement.
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.
PhaseNoise:Cancellation:Enabled
Specifies whether to enable or disable the phase noise cancellation.
PhaseNoise:Cancellation:Frequency (Hz)
Specifies an array of frequencies where the reference phase noise has been measured.
PhaseNoise:Cancellation:Reference Phase Noise (dBc/Hz)
Specifies an array of reference phase noise at the frequencies specified by the PhaseNoise Cancellation Freq property .
PhaseNoise:Cancellation:Threshold (dB)
Specifies the minimum difference between the reference and pre-cancellation traces that must exist before cancellation is performed.
PhaseNoise:FFT Window
Specifies the FFT window to use.
PhaseNoise:Integrated Noise:Range Definition
Specifies the frequency range for integrated noise measurements.
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.
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.
PhaseNoise:Measurement Enabled
Specifies whether to enable the phase noise measurement.
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.
PhaseNoise:Range Definition
Specifies how the measurement computes offset subranges.
PhaseNoise:Range:Averaging Count
Specifies the averaging count for the specified subrange when you set the PhaseNoise Range Definition property to Manual.
PhaseNoise:Range:Number of Ranges
Specifies the number of manual ranges.
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.
PhaseNoise:Range:Start Frequency (Hz)
Specifies the start frequency for the specified subrange when you set the PhaseNoise Range Definition property to Manual.
PhaseNoise:Range:Stop Frequency (Hz)
Specifies the stop frequency for the specified subrange when you set the PhaseNoise Range Definition property to Manual.
PhaseNoise:Results:Carrier Frequency (Hz)
Returns the measured carrier frequency.
PhaseNoise:Results:Carrier Power (dBm)
Returns the measured carrier power.
PhaseNoise:Results:Integrated Noise:Jitter (s)
Returns the jitter in seconds.
PhaseNoise:Results:Integrated Noise:Phase Noise (dBc)
Returns the integrated phase noise.
PhaseNoise:Results:Integrated Noise:Residual FM (Hz)
Returns the residual FM in Hz.
PhaseNoise:Results:Integrated Noise:Residual PM (deg)
Returns the residual PM in degrees.
PhaseNoise:Results:Integrated Noise:Residual PM (rad)
Returns the residual PM in radians.
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.
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.
PhaseNoise:Smoothing:Type
Specifies the smoothing type used to smoothen the measured log plot trace.
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.
PhaseNoise:Spur Removal: Enabled
Specifies whether to remove spurs from the log plot trace.
PhaseNoise:Spur Removal: Peak Excursion (dB)
Specifies the peak excursion to be used when spur detection is performed.
PhaseNoise:Start Frequency (Hz)
Specifies the start frequency of the offset frequency range when you set the PhaseNoise Range Definition property to Auto.
PhaseNoise:Stop Frequency (Hz)
Specifies the stop frequency of the offset frequency range when you set the PhaseNoise Range Definition property to Auto.
PowerList:Measurement Enabled
Specifies whether to enable the PowerList measurement.
PowerList:Number of Segments
Specifies the number of segments to be measured.
PowerList:Results:Maximum Power (dBm)
Returns an array of maximum power of the signal, each corresponding to a segment. This value is expressed in dBm.
PowerList:Results:Mean Absolute Power (dBm)
Returns an array of mean absolute power of the signal, each corresponding to a segment. This value is expressed in dBm.
PowerList:Results:Minimum Power (dBm)
Returns an array of minimum power of the signal, each corresponding to a segment. This value is expressed in dBm.
PowerList:Segment:Frequency (Hz)
Specifies an array of expected carrier frequencies for the RF signal to be acquired, each corresponding to a segment, to which the signal analyzer tunes. This value is expressed in Hz.
PowerList:Segment:Length (s)
Specifies an array of durations, each corresponding to a segment, where each value must be at least the sum of PowerList Segment Measurement Length and PowerList Segment Measurement Offset when the Digital Edge Source property is set to TimerEvent. This value is expressed in seconds.
PowerList:Segment:Measurement Length (s)
Specifies an array of durations, each corresponding to a segment, over which the power value is computed. This value is expressed in seconds.
PowerList:Segment:Measurement Offset (s)
Specifies an array of time offsets from the start of each segment, over which the power value is computed. This value is expressed in seconds.
PowerList:Segment:RBW Filter:Alpha
Specifies an array of roll-off factor for the root-raised-cosine (RRC) filter, each corresponding to a segment.
PowerList:Segment:RBW Filter:Bandwidth (Hz)
Specifies an array of bandwidth of the resolution bandwidth (RBW) filters used to measure the signal corresponding to each segment. This value is expressed in Hz.
PowerList:Segment:RBW Filter:Type
Specifies an array of digital resolution bandwidth (RBW) filter shapes, each corresponding to a segment.
PowerList:Segment:Reference Level (dBm)
Specifies an array of reference levels, each representing the maximum expected power of the RF input signal for its corresponding segment. This value is configured in dBm for RF devices.
PowerList:Segment:Trigger Type
Specifies an array of trigger type, each corresponding to a segment.
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.
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.
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.
SEM:All Traces Enabled
Specifies whether to enable the traces to be stored and retrieved after performing the SEM measurement.
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.
SEM:Averaging:Count
Specifies the number of acquisitions used for averaging when you set the SEM Averaging Enabled property to True.
SEM:Averaging:Enabled
Specifies whether to enable averaging for the SEM measurement.
SEM:Averaging:Type
Specifies the averaging type for averaging multiple spectrum acquisitions. The averaged spectrum is used for SEM measurement.
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.
SEM:Carrier:Enabled
Specifies whether to consider the carrier power as part of the total carrier power measurement.
SEM:Carrier:Frequency (Hz)
Specifies the center frequency of the carrier, relative to the RF center frequency. This value is expressed in Hz.
SEM:Carrier:Integration Bandwidth (Hz)
Specifies the frequency range over which the measurement integrates the carrier power. This value is expressed in Hz.
SEM:Carrier:Number of Carriers
Specifies the number of carriers.
SEM:Carrier:RBW Filter:Auto Bandwidth
Specifies whether the measurement computes the resolution bandwidth (RBW) of the carrier.
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.
SEM:Carrier:RBW Filter:Bandwidth Definition
Specifies the bandwidth definition that you use to specify the value of the SEM Carrier RBW property.
SEM:Carrier:RBW Filter:Type
Specifies the shape of the digital resolution bandwidth (RBW) filter.
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.
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.
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:
SEM:FFT:Window
Specifies the FFT window type to use to reduce spectral leakage.
SEM:Measurement Enabled
Specifies whether to enable the SEM measurement.
SEM:Number of Analysis Threads
Specifies the maximum number of threads used for parallelism for SEM measurement.
SEM:Offset:Absolute Limit:Mode
Specifies whether the absolute limit mask is a flat line or a line with a slope.
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.
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.
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).
SEM:Offset:Enabled
Specifies whether to enable the offset segment for SEM measurement.
SEM:Offset:Frequency Definition
Specifies the definition of the start frequency and stop frequency of the offset segments from the nearest carrier channels.
SEM:Offset:Limit Fail Mask
Specifies the criteria to determine the measurement fail status.
SEM:Offset:Number of Offsets
Specifies the number of offset segments.
SEM:Offset:RBW Filter:Auto Bandwidth
Specifies whether the measurement computes the resolution bandwidth (RBW).
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.
SEM:Offset:RBW Filter:Bandwidth Definition
Specifies the bandwidth definition which you use to specify the value of the SEM Offset RBW property.
SEM:Offset:RBW Filter:Type
Specifies the shape of the digital resolution bandwidth (RBW) filter.
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.
SEM:Offset:Relative Limit:Mode
Specifies whether the relative limit mask is a flat line or a line with a slope.
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.
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.
SEM:Offset:Sideband
Specifies whether the offset segment is present on one side, or on both sides of the carrier.
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.
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.
SEM:Power Units
Specifies the units for the absolute power.
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.
SEM:Results:Carrier:Absolute Power (dBm or dBm/Hz)
Returns the carrier power.
SEM:Results:Carrier:Frequency (Hz)
Returns the center frequency of the carrier relative to the Center Frequency property. This value is expressed in Hz.
SEM:Results:Carrier:Integration Bandwidth (Hz)
Returns the frequency range, over which the measurement integrates the carrier power. This value is expressed in Hz.
SEM:Results:Carrier:Peak Absolute Power (dBm or dBm/Hz)
Returns the peak power in the carrier channel.
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.
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.
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.
SEM:Results:Frequency Resolution
Returns the frequency bin spacing of the spectrum acquired by the measurement. This value is expressed in Hz.
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.
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.
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.
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.
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.
SEM:Results:Lower Offset:Peak Absolute Power (dBm or dBm/Hz)
Returns the peak power measured in the lower (negative) offset segment.
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.
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.
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.
SEM:Results:Lower Offset:Start Frequency (Hz)
Returns the start frequency of the lower (negative) offset segment. This value is expressed in Hz.
SEM:Results:Lower Offset:Stop Frequency (Hz)
Returns the stop frequency of the lower (negative) offset segment. This value is expressed in Hz.
SEM:Results:Lower Offset:Total Absolute Power (dBm or dBm/Hz)
Returns the power measured in the lower (negative) offset segment.
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.
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.
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.
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.
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.
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.
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.
SEM:Results:Upper Offset:Peak Absolute Power (dBm or dBm/Hz)
Returns the peak power measured in the upper (positive) offset segment.
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.
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.
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.
SEM:Results:Upper Offset:Start Frequency (Hz)
Returns the start frequency of the upper (positive) offset segment. This value is expressed in Hz.
SEM:Results:Upper Offset:Stop Frequency (Hz)
Returns the stop frequency of the upper (positive) offset segment. This value is expressed in Hz.
SEM:Results:Upper Offset:Total Absolute Power (dBm or dBm/Hz)
Returns the offset segment power measured in the upper (positive) offset segment.
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.
SEM:Sweep Time:Auto
Specifies whether the measurement computes the sweep time.
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.
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.
Selector String
Specifies the selector string used to access all subsequent channel-based properties in this instance of the property node.
Spectrum:Advanced:Sequential FFT Size
Specifies the FFT size when you set the Spectrum Meas Method property to Sequential FFT. If the property Spectrum RBW Auto is False, FFT Size is auto computed based on the configured Spectrum RBW
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.
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.
Spectrum:Averaging:Count
Specifies the number of acquisitions used for averaging when you set the Spectrum Averaging Enabled property to True.
Spectrum:Averaging:Enabled
Specifies whether to enable averaging for the spectrum measurement.
Spectrum:Averaging:Type
Specifies the averaging type for averaging multiple spectrum acquisitions. The averaged spectrum is used for spectrum measurement.
Spectrum:Detector:Points
Specifies the number of trace points after the detector is applied.
Spectrum:Detector:Type
Specifies the type of detector to be used.
Spectrum:FFT:Overlap (%)
Specifies the samples to overlap between the consecutive chunks as a percentage of the Spectrum Sequential FFT Size property when you set the Spectrum Meas Method property to Sequential FFT and the Spectrum FFT Overlap Mode property to User Defined. This value is expressed as a percentage.
Spectrum:FFT:Overlap Mode
Specifies the overlap mode when you set the Spectrum Meas Method property to Sequential FFT.
Spectrum:FFT:Overlap Type
Specifies the overlap type when you set the Spectrum Meas Method property to Sequential FFT.
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:
Spectrum:FFT:Window
Specifies the FFT window type to use to reduce spectral leakage.
Spectrum:Measurement Enabled
Specifies whether to enable the spectrum measurement.
Spectrum:Measurement Method
Specifies the method for performing the Spectrum measurement.
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.
Spectrum:Noise Calibration:Averaging:Auto
Specifies whether RFmx automatically computes the averaging count used for instrument noise calibration.
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.
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.
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.
Spectrum:Noise Compensation:Type
Specifies the noise compensation type. Refer to the Noise Compensation Algorithm topic for more information.
Spectrum:Number of Analysis Threads
Specifies the maximum number of threads used for parallelism for spectrum measurement.
Spectrum:Power Units
Specifies the units for the absolute power.
Spectrum:RBW Filter:Auto Bandwidth
Specifies whether the measurement computes the resolution bandwidth (RBW).
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.
Spectrum:RBW Filter:Bandwidth Definition
Specifies the bandwidth definition which you use to specify the value of the Spectrum RBW property.
Spectrum:RBW Filter:Type
Specifies the shape of the digital resolution bandwidth (RBW) filter.
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.
Spectrum:Results:Peak Amplitude (dBm)
Returns the peak amplitude, of the averaged spectrum.
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.
Spectrum:Span (Hz)
Specifies the frequency range around the center frequency, to acquire for the measurement. This value is expressed in Hz.
Spectrum:Sweep Time:Auto
Specifies whether the measurement computes the sweep time.
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.
Spectrum:VBW Filter:Auto Bandwidth
Specifies whether the video bandwidth (VBW) is expressed directly or computed based on the VBW to RBW ratio.
Spectrum:VBW Filter:Bandwidth (Hz)
Specifies the video bandwidth (VBW) in Hz when you set the Spectrum VBW Auto property to False.
Spectrum:VBW Filter:VBW to RBW Ratio
Specifies the VBW to RBW Ratio when you set the Spectrum VBW Auto property to True .
Spur:All Traces Enabled
Specifies whether to enable the traces to be stored and retrieved after performing the spurious emissions (Spur) measurement.
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.
Spur:Averaging:Count
Specifies the number of acquisitions used for averaging when you set the Spur Averaging Enabled property to True.
Spur:Averaging:Enabled
Specifies whether to enable averaging for the spurious emission (Spur) measurement.
Spur:Averaging:Type
Specifies the averaging type for averaging multiple spectrum acquisitions. The averaged spectrum is used for spurious emission (Spur) measurement.
Spur:FFT:Window
Specifies the FFT window type to use to reduce spectral leakage.
Spur:Measurement Enabled
Specifies whether to enable the spurious emission (Spur) measurement.
Spur:Number of Analysis Threads
Specifies the maximum number of threads used for parallelism for spurious emission (Spur) measurement.
Spur:Range:Absolute Limit:Mode
Specifies whether the absolute limit threshold is a flat line or a line with a slope.
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.
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.
Spur:Range:Detector:Points
Specifies the number of range points after the detector is applied.
Spur:Range:Detector:Type
Specifies the type of detector to be used.
Spur:Range:Enabled
Specifies whether to measure the spurious emissions (Spur) in the frequency range.
Spur:Range:Number of Ranges
Specifies the number of ranges.
Spur:Range:Number of Spurs to Report
Specifies the number of spurious emissions (Spur) that the measurement should report in the frequency range.
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.
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.
Spur:Range:RBW Filter:Auto Bandwidth
Specifies whether the measurement computes the resolution bandwidth (RBW).
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.
Spur:Range:RBW Filter:Bandwidth Definition
Specifies the bandwidth definition which you use to specify the value of the Spur Range RBW property.
Spur:Range:RBW Filter:Type
Specifies the shape of the digital resolution bandwidth (RBW) filter.
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.
Spur:Range:Start Frequency (Hz)
Specifies the start of the frequency range for the measurement. This value is expressed in Hz.
Spur:Range:Stop Frequency (Hz)
Specifies the stop of the frequency range for the measurement. This value is expressed in Hz.
Spur:Range:Sweep Time:Auto
Specifies whether the measurement computes the sweep time.
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.
Spur:Range:VBW Filter:Auto Bandwidth
Specifies whether the video bandwidth (VBW) is expressed directly or computed based on the VBW to RBW ratio.
Spur:Range:VBW Filter:Bandwidth (Hz)
Specifies the video bandwidth (VBW) in Hz when you set the Spur Range VBW Auto property to False.
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.
Spur:Results:Measurement Status
Indicates the overall measurement status.
Spur:Results:Range:Measurement Status
Indicates the measurement status for the frequency range.
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.
Spur:Results:Range:Spur:Amplitude (dBm)
Returns the amplitude of the detected spurious emissions (Spur). This value is expressed in dBm.
Spur:Results:Range:Spur:Frequency (Hz)
Returns the frequency of the detected spurious emissions (Spur). This value is expressed in Hz.
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.
Spur:Results:Range:Spur:Number of Detected Spurs
Returns the number of detected spurious emissions (Spur) in the specified frequency range.
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.
TXP:All Traces Enabled
Specifies whether to enable the traces to be stored and retrieved after performing the TXP measurement.
TXP:Averaging:Count
Specifies the number of acquisitions used for averaging when you set the TXP Averaging Enabled property to True.
TXP:Averaging:Enabled
Specifies whether to enable averaging for the TXP measurement.
TXP:Averaging:Type
Specifies the averaging type for the TXP measurement. The averaged power trace is used for the measurement.
TXP:Measurement Enabled
Specifies whether to enable the TXP measurement.
TXP:Measurement Interval (s)
Specifies the acquisition time for the TXP measurement. This value is expressed in seconds.
TXP:Number of Analysis Threads
Specifies the maximum number of threads used for parallelism for TXP measurement.
TXP:RBW Filter:Alpha
Specifies the roll-off factor for the root-raised-cosine (RRC) filter.
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.
TXP:RBW Filter:Type
Specifies the shape of the digital resolution bandwidth (RBW) filter.
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.
TXP:Results:Maximum Power (dBm)
Returns the maximum power of the averaged power trace. This value is expressed in dBm.
TXP:Results:Minimum Power (dBm)
Returns the minimum power of the averaged power trace. This value is expressed in dBm.
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.
TXP:Threshold:Enabled
Specifies whether to enable thresholding of the acquired samples to be used for the TXP measurement.
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.
TXP:Threshold:Type
Specifies the reference for the power level used for thresholding.
TXP:VBW Filter:Auto Bandwidth
Specifies whether the video bandwidth (VBW) is expressed directly or computed based on the VBW to RBW ratio.
TXP:VBW Filter:Bandwidth (Hz)
Specifies the video bandwidth when you set the TXP VBW Auto property to False.
TXP:VBW Filter:VBW to RBW Ratio
Specifies the VBW to RBW Ratio when you set the TXP VBW Auto property to True.
Trigger:Delay (s)
Specifies the trigger delay time. This value is expressed in seconds.
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.
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.
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.
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.
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.
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.
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.
Trigger:Minimum Quiet Time:Mode
Specifies whether the measurement computes the minimum quiet time used for triggering.
Trigger:Type
Specifies the trigger type.

RFmx SpecAn LabVIEW Reference

Log in to get a better experience