Use the NI-RFSA properties to access advanced configuration options for NI-RFSA applications.

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Active Channel
Specifies the channel name used to access all subsequent properties in this instance of the property node. If the property you want to use is channel-based, you need to first select this property and then pass the name of the specific channel. If the property you specify is not channel-based, pass an empty string, or omit setting this property.
Acquisition Type
Configures the session to either acquire I/Q data or to compute a power spectrum over the specified frequency range.
Vertical:Reference Level (dBm)
Specifies the reference level, in dBm. The reference level represents the maximum expected power of an RF input signal.
Vertical:Mixer Level (dBm)
Specifies the mixer level, in dBm. The mixer level represents the attenuation value to apply to the input RF signal as it reaches the first mixer in the signal chain. If you do not set this property, NI-RFSA automatically selects an optimal mixer level value based on the reference level. The valid values for this property depend on your device configuration.
Vertical:Mixer Level Offset (dB)
Specifies the number of decibels by which to adjust the device mixer level. The default value is 0, which specifies device settings that are the best compromise between distortion and noise. Specifying a positive value for this property configures the device for moderate distortion and low noise, and specifying a negative value results in low distortion and higher noise.
Vertical:IF Output Power Level (dBm)
Specifies the level of the IF signal leaving the system, in dBm. Use this property to increase or decrease the nominal IF signal output level to achieve better measurement results.
Vertical:IF Output Power Level Offset (dB)
Specifies the number of decibels by which to adjust the default IF output power level. This property does not depend on absolute IF output power levels, so you can use it to adjust the IF output power level on all NI-RFSA devices without knowing the exact default value. Use this property to increase or decrease the nominal output level to achieve better measurement results. The default value for the offset is 0 dB.
Vertical:Downconverter Gain (dB)
Returns the net signal gain for the NI-RFSA device at the current NI-RFSA settings and temperature. NI-RFSA scales the acquired I/Q and spectrum data from the digitizer using the value of this property.
Vertical:Digitizer Vertical Range
Specifies the vertical range of the digitizer. The vertical range is defined as the absolute value of the input range for a channel. The default vertical range works for all device configurations, but you can use this property to optimize performance if you know that the signal level at the digitizer input terminal is low.
Vertical:Advanced:Reference Level Headroom (dB)
Specifies the margin NI-RFSA adds to the Reference Level property. The margin helps to avoid clipping and overflow warnings if the input signal exceeds the configured reference level.
Vertical:Advanced:External Gain (dB)
Specifies the gain, in decibels, of a switch (or cable) connected before the RF IN connector of an NI-RFSA system. When you set this property, NI-RFSA calculates appropriate attenuator settings based on the value of this property and the value of the Reference Level property. In this case, NI-RFSA interprets the reference level as the maximum expected power level of the signal at the input of the external gain device. For more information about attenuation, refer to the Attenuation and Signal Levels topic for your device in the NI RF Vector Signal Analyzers Help.
Vertical:Advanced:RF Attenuation (dB)
Specifies the nominal attenuation setting, in decibels, for all attenuators before the first mixer in the RF signal chain. If you do not set this property, NI-RFSA automatically chooses an attenuation setting based on the reference level you configure. The valid values for this property depend on the device configuration.
Vertical:Advanced:Mechanical Attenuation (dB)
Specifies the level of mechanical attenuation for the RF path, in decibels.
Vertical:Advanced:Device Configuration Temperature (Degrees C)
Specifies the temperature, in degrees Celsius, that NI-RFSA uses to calculate the device configuration settings.
Vertical:Advanced:RF Attenuation Step Size (dB)
Specifies the step size, in decibels, for the RF attenuation level. The actual RF attenuation is coerced up to the next highest multiple of this step size. You can also set this value to change the step size for the device within the supported device precision and configuration.
Vertical:Advanced:OSP Data Scaling Factor
Specifies the scaling factor applied to the time-domain voltage data in the IF digitizer. Use this property to maximize the dynamic range of the digitizer by increasing the maximum IF power the digitizer can measure without creating OSP overflows.
Vertical:Advanced:Overflow Error Reporting
Configures error reporting for ADC and onboard signal processing overflows. Overflows lead to clipping of the waveform.
Vertical:Advanced:Minimum Adjacent Channel Power Ratio (dB)
Specifies the minimum adjacent channel power ratio (ACPR), in decibels, relative to the main channel reference level. This property configures NI-RFSA to optimize downconverter gain to measure a lower-power adjacent channel, adding gain only after filtering the main channel. The gain NI-RFSA applies is always less than or equal to the ACPR value you specify.
Vertical:Advanced:Preamp Enabled
Specifies whether the RF preamplifier is enabled in the system.
Vertical:Advanced:Amplitude Settling
Configures the amplitude settling accuracy in decibels. NI-RFSA waits until the RF power settles within the specified accuracy level after calling the niRFSA Initiate VI.
Vertical:Advanced:Digital Gain (dB)
Specifies the scaling factor, in decibels, applied to the time-domain voltage data in the digitizer. NI-RFSA does not compensate for the specified digital gain.
Vertical:Advanced:Thermal Correction Headroom Range (Degrees C)
Specifies the expected thermal operating range of the instrument from the self-calibration temperature, in degrees Celsius, returned from the Device Temperature property.
Vertical:Advanced:Thermal Correction Temperature Resolution (Degrees C)
Specifies the temperature change, in degrees Celsius, required before NI-RFSA recalculates the thermal correction settings when entering the Running state.
Vertical:Advanced:NI 5663:Mechanical Attenuator Enabled
Specifies whether the mechanical attenuator is enabled. Set this property to Enabled to allow NI-RFSA to use the mechanical attenuator.
Vertical:Advanced:NI 5665/5667/5668R:Channel Coupling
Specifies whether the RF IN connector is AC- or DC-coupled on the downconverter.
Vertical:Advanced:NI 5693:Cal Tone Power Referred to RF IN
Returns the power, in dBm, of a virtual signal connected to the RF IN connector on the PXIe-5693 front panel when the calibration tone is enabled.
Vertical:Advanced:NI 5694:Step Gain Enabled
Specifies whether to enable the step gain amplifier.
Signal Path:Digital IF Equalization Enabled
Enables use of the digital equalization filter for the RF downconverter.
Signal Path:LO Frequency
Specifies the LO signal frequency for the configured center frequency.
Signal Path:LO Source
Specifies the LO signal source used to downconvert the RF input signal. If this property is set to "" (empty string), NI-RFSA uses the internal LO source.
Signal Path:LO Export Enabled
Specifies whether to enable the LO OUT terminals on the installed devices.
Signal Path:LO2 Export Enabled
Specifies whether to enable the LO2 OUT terminal on the installed devices.
Signal Path:RF Out LO Export Enabled
Specifies whether to enable the RF OUT LO OUT terminal on the PXIe-5840/5841.
Signal Path:LO Out Export Configure From RFSG
Specifies whether to allow NI-RFSG to control the NI-RFSA LO out export.
Signal Path:Fractional Resample Enabled
Specifies whether fractional resampling is enabled on the digitizer. Fractional resampling allows the digitizer to achieve very fine resolution on the I/Q rate value. Setting this property to FALSE improves spectral performance.
Signal Path:Digitizer Dither Enabled
Specifies whether dithering is enabled on the digitizer.
Signal Path:IF Filter Bandwidth
Specifies the IF filter path bandwidth, in Hz, for your device configuration.
Signal Path:Advanced:Downconverter Loop Bandwidth
Configures the loop bandwidth of the RF downconverter tuning phase-locked loops (PLLs). To set this property, the NI-RFSA device must be in the Configuration state.
Signal Path:Advanced:Input Isolation Enabled
Specifies whether input isolation is enabled.
Signal Path:Advanced:LO Injection Side
Specifies the LO injection side.
Signal Path:Advanced:Frequency Settling Units
Specifies the delay duration units and interpretation for LO settling. Specify the actual settling value using the Frequency Settling property. This property is not supported if you are using an external LO.
Signal Path:Advanced:Frequency Settling
Specifies the value used for local oscillator (LO) frequency settling. The units and interpretation for this scalar value are specified using the Frequency Settling Units property. This property is not supported if you are using an external LO.
Signal Path:Advanced:LO YIG Main Coil Drive
Adjusts the dynamics of the current driving the YIG main coil.
Signal Path:Advanced:Downconverter Preselector Enabled
Specifies whether the tunable preselector is enabled on the downconverter.
Signal Path:Advanced:Notch Filter Enabled
Specifies whether the notch filter is enabled on the RF conditioning module.
Signal Path:Advanced:RF Preselector Filter
Specifies the RF preselector filter to use.
Signal Path:Advanced:Low Frequency Bypass Enabled
Specifies whether to use the low frequency bypass path for the incoming RF signal.
Signal Path:Advanced:IF Conditioning Downconversion Enabled
Specifies whether downconversion to 21.4 MHz is enabled for the IF conditioning module. The IF output frequency is 21.4 MHz when you enable this property, and it is 193.6 MHz when you disable this property.
Signal Path:Advanced:RF Highpass Filtering
Specifies the maximum corner frequency of the highpass filter in the RF signal path. The device uses the highest frequency highpass filter option below or equal to the value you specify and returns a coerced value. Specifying a value of 0 disables highpass filtering.
Signal Path:Advanced:Fixed Group Delay Across Ports
Specifies a comma-separated list of ports for which to fix the group delay.
Signal Path:Advanced:Selected Ports
Specifies which port to configure to acquire a signal.
Signal Path:Advanced:Available Ports
Returns a comma-separated list of the ports available for use based on your instrument configuration.
Signal Path:Advanced:Selected Path
Specifies which path to configure to acquire a signal.
Signal Path:Advanced:Available Paths
Returns a comma separated list of the configurable paths available for use based on your instrument configuration.
Signal Path:Advanced:NI 5663:IF Filter
Specifies the desired IF filter path, regardless of the RF band chosen by NI-RFSA.
Signal Path:Advanced:NI 5663:RF Attenuation Table
Specifies which RF attenuator table to use.
Signal Path:Advanced:NI 5663:IF Attenuation (dB)
Configures the device attenuation to a value that has the actual calibrated IF attenuation closest to the desired value.
Signal Path:Advanced:NI 5663:IF1 Attenuation (dB)
Specifies the IF1 attenuation, in decibels. The device IF1 attenuator is set to this nominal value. Use this property, along with the IF2 Attenuation property, when you set the IF Filter property to Bypass.
Signal Path:Advanced:NI 5663:IF2 Attenuation (dB)
Specifies the IF2 attenuation, in decibels. The device IF2 attenuator is set to this nominal value. Use this property, along with the IF1 Attenuation property, when you set the IF Filter property to Bypass.
Signal Path:Advanced:NI 5694:Signal Conditioning Enabled
Specifies whether all signal conditioning is enabled on the PXIe-5694.
Acquisition:Device Instantaneous Bandwidth (Hz)
Specifies the instantaneous bandwidth of the device in Hz. The instantaneous bandwidth is the effective real-time bandwidth of the signal path for your configuration.
Acquisition:IQ:IQ Carrier Frequency
Specifies the expected carrier frequency of the incoming signal for demodulation, in Hz. The NI-RFSA device tunes to this frequency. NI-RFSA may coerce this value based on hardware settings and the RF downconverter specifications.
Acquisition:IQ:Signal Bandwidth (Hz)
Specifies the bandwidth of the input signal around the I/Q carrier frequency. This value must be less than or equal to (0.8 x I/Q rate).
Acquisition:IQ:IQ Rate (S/s)
Specifies the I/Q rate for the acquisition. The value is expressed in samples per second (S/s).
Acquisition:IQ:Number Of Samples Is Finite
Specifies whether the device acquires a finite number of samples or acquires continuously.
Acquisition:IQ:Number Of Samples
Specifies the number of samples to acquire. This property is valid only if the Number Of Samples Is Finite property is set to TRUE.
Acquisition:IQ:Number Of Records Is Finite
Specifies whether the device stops after acquiring the specified number of records or acquires records continuously.
Acquisition:IQ:Allow More Records Than Memory
Specifies whether to allow the device to acquire more records than will fit in the device memory of the PXIe-5622/5624.
Acquisition:IQ:Number Of Records
Specifies the number of records to acquire if the Number of Records Is Finite property is set to TRUE.
Acquisition:IQ:Phase Offset
Specifies the offset to apply to the initial I and Q phases.
Acquisition:IQ:Advanced:Contiguous Multirecord
This property is not for customer use.
Acquisition:Spectrum:Center Frequency
Specifies the center frequency, in Hz, in a spectrum acquisition. An acquisition consists of a span of data surrounding the center frequency.
Acquisition:Spectrum:Span
Specifies the frequency range of the computed spectrum in Hz. For example, if you specify a center frequency of 1 GHz and a span of 100 MHz, the spectrum ranges from 950 MHz to 1,050 MHz after zoom processing. This value may be coerced based on hardware settings and RF downconverter specifications.
Acquisition:Spectrum:Power Spectrum Units
Specifies the units of the power spectrum.
Acquisition:Spectrum:Resolution Bandwidth (Hz)
Specifies the resolution along the x-axis of the spectrum, in Hz. NI-RFSA uses the resolution bandwidth value to determine the acquisition size. If specified, the Number of Spectral Lines property value overrides this value.
Acquisition:Spectrum:Resolution Bandwidth Type
Specifies how the Resolution Bandwidth property is expressed.
Acquisition:Spectrum:Number Of Spectral Lines
Specifies the number of spectral lines expected with the current power spectrum configuration. If you do not configure this property, NI-RFSA selects an appropriate value based on the Resolution Bandwidth property. If you configure this property, NI-RFSA coerces the value of the Resolution Bandwidth property based on the number of spectral lines requested and the value of the Spectrum Span property.
Acquisition:Spectrum:Averaging Mode
Specifies the averaging mode for the spectrum acquisition.
Acquisition:Spectrum:Number Of Averages
Specifies the number of acquisitions to average. The averaging process returns the final result after the number of averages is complete.
Acquisition:Spectrum:FFT Window Type
Specifies the time-domain window type.
Acquisition:Spectrum:FFT Window Shape Factor
Returns the shape factor of the window used in the fast Fourier transform (FFT). The window shape factor is defined as the ratio of the 60 dB to 6 dB bandwidths.
Acquisition:Spectrum:FFT Window Size
Returns the size of the window used in the fast Fourier transform (FFT), in terms of the number of samples in the window.
Acquisition:Spectrum:FFT Size
Returns the size of the fast Fourier transform (FFT).
Acquisition:Spectrum:Spectrum OSP Sampling Ratio
Specifies the oversampling ratio used by the digitizer onboard signal processing (OSP) when you are in spectrum acquisition mode. This property allows you to acquire a larger bandwidth in hardware and reduce that bandwidth in software, decreasing the possibility of hardware data path overflows.
Acquisition:Spectrum:FFT Width
Specifies the FFT width of the device. The FFT width is the effective bandwidth of the signal path during each signal acquisition.
Acquisition:Spectrum:Smooth Spectrum Enabled
Specifies that an optimized IF filtering selection is made at different spectrum frequency ranges during spectrum acquisition.
Acquisition:Spectrum:Subspan Overlap
Use subspan overlap process to eliminate or reduce analyzer spurs. To enable this feature, specify a non-zero percentage overlap between consecutive subspans in a spectrum acquisition.
Acquisition:Fetch:Fetch Relative To
Specifies the reference location within the acquired record from which to begin fetching.
Acquisition:Fetch:Fetch Offset
Specifies the offset relative to the position specified by the Fetch Relative To property from which to start fetching data. Offset can be a positive or negative value.
Acquisition:Fetch:Records Done
Returns the number of records the RF vector signal analyzer has acquired.
Acquisition:Fetch:Data Transfer:Data Transfer Maximum Bandwidth
Specifies the maximum bandwidth that the device can consume.
Acquisition:Fetch:Data Transfer:Data Transfer Block Size
Specifies the maximum number of samples to transfer at one time from the device to host memory. Increasing this number should result in better fetching performance because the driver does not need to restart the transfers as often. However, increasing this number may also increase the amount of page-locked memory required from the system.
Acquisition:Fetch:Data Transfer:Host DMA Buffer Size
Specifies the size of the DMA buffer in computer memory, in bytes. To set this property, the NI-RFSA device must be in the Configuration state.
Acquisition:Advanced:Downconverter Frequency Offset Mode
Specifies whether to allow NI-RFSA to select the downconverter frequency offset. You can either set an offset yourself or let NI-RFSA select one for you.
Acquisition:Advanced:Downconverter Center Frequency
Enables in-band retuning and specifies the current frequency, in Hz, of the RF downconverter. If you set this property, any measurements outside the instantaneous bandwidth of the device are invalid. To disable in-band retuning, reset the property or call the niRFSA Reset VI.
Acquisition:Advanced:IF Output Frequency
Returns the center frequency of the IF output signal that corresponds to the configured RF center frequency.
Acquisition:Advanced:Allow Out Of Specification User Settings
Enables or disables warnings and errors when you set frequency, power, or bandwidth values beyond the limits of the NI-RFSA device specifications. When you enable this property, the driver does not report out-of-specification warnings and errors.
Clocking:Ref Clock Source
Specifies the Reference Clock source.
Clocking:Ref Clock Rate
Specifies the Reference Clock rate, in Hz, of the signal present at the REF IN or CLK IN connector. This property is only valid when the Ref Clock Source property is set to ClkIn or RefIn.
Clocking:Ref Clock Exported Terminal
Specifies a comma-separated list of the terminals at which to export the Reference Clock.
Clocking:Digitizer Sample Clock Timebase Source
Specifies the source of the Sample Clock timebase, which is the timebase used to control waveform sampling.
Clocking:Digitizer Sample Clock Exported Terminal
Specifies the terminal at which to export the Digitizer Sample Clock.
Clocking:Digitizer Sample Clock Timebase Rate
Specifies the frequency, in Hz, of the external clock used as the timebase source if you set the Digitizer Sample Clock Timebase Source property to an external source, such as ClkIn or LORefClk.
Clocking:Digitizer Sample Clock Rate
Specifies the frequency, in Hz, of the Sample Clock on the digitizer.
Clocking:PXI Chassis Clk10 Source
Specifies the signal to drive the 10 MHz Reference Clock on the PXI backplane. This option can be configured only when the PXI-5600 is installed in Slot 2 of the PXI chassis.
Clocking:Ref Clock Exported Rate:Ref Clock Exported Rate
Specifies the Reference Clock Rate, in Hz, of the signal sent to the Ref Clock Exported Terminal.
Triggers:Start:Type
Specifies whether you want the Start Trigger to be a digital edge or software trigger.
Triggers:Start:Terminal Name
Returns the fully qualified signal name as a string.
Triggers:Start:Digital Edge:Source
Specifies the source terminal for the Start Trigger. This property is used only when the Start Trigger Type property is set to Digital Edge.
Triggers:Start:Digital Edge:Edge
Specifies the active edge for the Start Trigger. This property is used only when the Start Trigger Type property is set to Digital Edge.
Triggers:Start:Export:Output Terminal
Specifies the destination terminal for the exported Start Trigger.
Triggers:Ref:Type
Specifies whether you want the Reference Trigger to be a digital edge, I/Q power edge, or software trigger.
Triggers:Ref:Pretrigger Samples
Specifies the number of pretrigger samples—the samples acquired before the Reference Trigger is received—to be acquired per record.
Triggers:Ref:Minimum Quiet Time
Specifies a time duration, in seconds, for which the signal must be quiet before the device arms the IQ Power Edge trigger. The signal is quiet when it is below the trigger level if the trigger slope, specified by the Reference Trigger IQ Power Edge Slope property, is set to Rising Slope or when it is above the trigger level if the trigger slope is set to Falling Slope.
Triggers:Ref:Terminal Name
Returns the fully qualified signal name as a string.
Triggers:Ref:Digital Edge:Source
Specifies the source terminal for the digital edge Reference Trigger. This property is used only when the Reference Trigger Type property is set to Digital Edge.
Triggers:Ref:Digital Edge:Edge
Specifies the active edge for the Reference Trigger. This property is used only when the Ref Trigger Type property is set to Digital Edge.
Triggers:Ref:IQ Power Edge:Source
Specifies the channel from which the device monitors the trigger. NI-RFSA currently supports only 0 as the value of this property.
Triggers:Ref:IQ Power Edge:Level
Specifies the power level, in dBm, at which the device triggers. The device asserts the trigger when the signal exceeds the level specified by the value of this property, taking into consideration the specified slope. If you are using external gain with your device, refer to the External Gain property for more information about how this property affects the I/Q power edge trigger level.
Triggers:Ref:IQ Power Edge:Slope
Specifies whether the device asserts the trigger when the signal power is rising or falling. When you set the Reference Trigger Type property to IQ Power Edge, the device asserts the trigger when the signal power exceeds the specified level with the slope you specify.
Triggers:Ref:Export:Output Terminal
Specifies the destination terminal for the exported Reference Trigger.
Triggers:Ref:Advanced:Ref Trigger Delay (s)
Specifies the trigger delay time, in seconds. The trigger delay time is the length of time the IF digitizer waits after it receives the trigger before it asserts the Reference Event.
Triggers:Ref:Advanced:Start To Ref Trigger Holdoff (s)
Specifies the minimum time, in seconds, that must elapse after the Start Trigger is received before the device recognizes a Reference Trigger.
Triggers:Ref:Advanced:Ref To Ref Trigger Holdoff (s)
Specifies the minimum time, in seconds, that must elapse between Reference Triggers of two records. The device does not recognize the Reference Trigger of the next record before this minimum time elapses.
Triggers:Ref:Advanced:OSP Delay Enabled
Specifies whether to enable the digitizer OSP block to delay Reference Triggers, along with the data samples, moving through the OSP block. If you set this property to Disabled, the Reference Triggers bypass the OSP block and are processed immediately.
Triggers:Advance:Type
Specifies whether you want the Advance Trigger to be a digital edge or software trigger.
Triggers:Advance:Terminal Name
Returns the fully qualified signal name as a string.
Triggers:Advance:Digital Edge:Source
Specifies the source terminal for the Advance Trigger. This property is used only when the Advance Trigger Type property is set to Digital Edge.
Triggers:Advance:Export:Output Terminal
Specifies the destination terminal for the exported Advance Trigger.
Triggers:Arm Ref:Type
Specifies whether the Arm Reference Trigger uses a digital edge or software trigger.
Triggers:Arm Ref:Digital Edge:Source
Specifies the source terminal for the digital edge Arm Reference Trigger. This property is used only when the Arm Reference Trigger Type property is set to Digital Edge.
Triggers:Configuration List Step:Digital Edge:Source
Configures the list trigger source. The default value is the End Of Record Event. When the value is End Of Record Event, this will signal the instrument to reconfigure from configuration N to configuration N + 1 after the End Of Record Event, and before the Ready For Advance Event. If you configure this property to any other value, the instrument reconfiguration will occur whenever the specified trigger is asserted, which may be decoupled from the acquisition state machine. Therefore, if you trigger a reconfiguration during a record acquisition, you may see transient data in the record, which should be discarded by the application. NI recommends you to use this property only in case of streaming.
Triggers:Advanced:DDC Reference Trigger Override
This property is not for customer use.
Triggers:Advanced:Start Trigger Delay
This property is not for customer use.
Events:Ready For Start:Output Terminal
Specifies the destination terminal for the Ready for Start Event.
Events:Ready For Start:Terminal Name
Returns the fully qualified signal name as a string.
Events:Ready For Advance:Output Terminal
Specifies the destination terminal for the Ready for Advance Event.
Events:Ready For Advance:Terminal Name
Returns the fully qualified signal name as a string.
Events:Ready For Ref:Output Terminal
Specifies the destination terminal for the Ready for Reference Event.
Events:Ready For Ref:Terminal Name
Returns the fully qualified signal name as a string.
Events:End Of Record:Output Terminal
Specifies the destination terminal for the End of Record Event.
Events:End Of Record:Terminal Name
Returns the fully qualified signal name as a string.
Events:Done:Output Terminal
Specifies the destination terminal for the Done Event.
Events:Done:Terminal Name
Returns the fully qualified signal name as a string.
Events:User Source:Pulse Width
Specifies the pulse width for the User Source. Use the User Source Pulse Width Units property to set the units for the pulse width.
Events:User Source:Pulse Width Units
Specifies the pulse width units for the User Source. When the value is Seconds, it is assumed that the clock rate of the signal is the data clock. Use Clock Periods if the user source clock rate is anything else.
Device Characteristics:Serial Number
Returns the serial number of the RF downconverter module.
Device Characteristics:Module Revision
Returns the revision of the RF downconverter module.
Device Characteristics:Device Temperature (Degrees C)
Returns the current temperature, in degrees Celsius, of the module.
Device Characteristics:LO Temperature (Degrees C)
Returns the current temperature, in degrees Celsius, of the LO module associated with the NI-RFSA device.
Device Characteristics:Digitizer Temperature (Degrees C)
Returns the current temperature, in degrees Celsius, of the digitizer module.
Device Characteristics:FPGA Temperature (Degrees C)
Returns the current temperature, in degrees Celsius, of the FPGA.
Device Characteristics:RF Conditioning Temperature (Degrees C)
Returns the current temperature, in degrees Celsius, of the RF conditioning module associated with the NI-RFSA device.
Device Characteristics:IF Conditioning Temperature (Degrees C)
Returns the current temperature, in degrees Celsius, of the IF conditioning module associated with the NI-RFSA device.
Device Characteristics:Temperature Read Interval
Indicates the minimum time between temperature sensor readings in seconds. When you call the niRFSA Read Power Spectrum VI, niRFSA Read IQ VI, or niRFSA Initiate VI, NI-RFSA checks if at least the amount of time specified by this property has elapsed before reading the hardware temperature.
Device Characteristics:Memory Size
Returns the digitizer onboard memory size, in bytes.
Device Characteristics:RF Preamp Present
Returns whether an RF preamplifier is available on the RF downconverter module.
Device Characteristics:Preselector Present
Returns whether a preselector is available on the RF downconverter module.
Device Characteristics:FPGA Bitfile Path
Returns a string containing the path to the location of the current NI-RFSA instrument driver FPGA extensions bitfile, a .lvbitx file, that is programmed on the device. You can specify the bitfile location using the Driver Setup string in the option string property of the niRFSA Initialize With Options VI.
Device Characteristics:FPGA Target Name
Returns a string containing the name of the FPGA target being used. This name can be used with the RIO open session to open a reference to the FPGA.
Device Characteristics:Max Device Instantaneous Bandwidth
Returns the maximum instantaneous bandwidth of the device.
Device Characteristics:Max IQ Rate
Returns the maximum I/Q rate.
Device Characteristics:Module Power Consumption (W)
Returns the module power consumption, in watts.
Peer-to-Peer:Enabled
Specifies whether peer-to-peer streaming is enabled for the active stream endpoint.
Peer-to-Peer:FIFO Endpoint Count
Returns the number of peer-to-peer streams supported by the device.
Peer-to-Peer:Samples Transferred
Returns the number of complex samples transferred through the peer-to-peer stream endpoint since the endpoint was last reset.
Peer-to-Peer:Samples in P2P Endpoint
Returns the current number of complex samples available in the peer-to-peer endpoint.
Peer-to-Peer:Most Samples in P2P Endpoint
Returns the largest number of complex samples available in the peer-to-peer endpoint since this property was last read.
Peer-to-Peer:Endpoint Size
Returns the size, in samples, of the peer-to-peer endpoint.
Peer-to-Peer:Endpoint Overflow
Indicates whether the endpoint has overflowed. An overflow condition occurs when data is written to the endpoint faster than it can be streamed from it. During an overflow, data in the endpoint begins to be overwritten. Reset the device or close the session to reset the overflow condition.
Peer-to-Peer:Onboard Memory Enabled
Specifies whether a limit is placed on the number of records and the size of the records by the size of the device onboard memory. When a peer-to-peer stream is enabled and onboard memory is disabled, any fetch calls result in an error.
Configuration List:Active List
Specifies the configuration list for RF list mode to make active for configuration or initiation.
Configuration List:Active Step
Specifies the step in the configuration list for RF list mode to make active for configuration or initiation.
Configuration List:Step In Progress
Returns the configuration list step that is currently programmed to the hardware. The list is zero-indexed. You can query this property only when a list is executed.
Configuration List:Timer Event Interval
Specifies the time, in seconds, that the timer counts before generating a Timer Event.
Configuration List:Advanced:Minimum Reconfiguration Time
This property is not for customer use.
Configuration List:Advanced:Timer Start Source
This property is not for customer use.
Inherent IVI Attributes:User Options:Cache
Specifies whether to cache the value of properties. If you set this property to TRUE, NI-RFSA tracks the current NI-RFSA device settings and avoids sending redundant commands to the device.
Inherent IVI Attributes:User Options:Interchange Check
Specifies whether to perform interchangeability checking and retrieve interchangeability warnings.
Inherent IVI Attributes:User Options:Driver Setup
The Driver Setup property returns, as a string, the initial values for properties that are specific to NI-RFSA.
Inherent IVI Attributes:User Options:Query Instrument Status
Specifies whether NI-RFSA queries the NI-RFSA device status after each operation. Querying the device status is useful for debugging. After you validate your program, you can set this property to FALSE to disable status checking and maximize performance.
Inherent IVI Attributes:User Options:Range Check
Specifies whether to validate property values and VI parameters. If enabled, NI-RFSA validates the parameter values that you pass to NI-RFSA VIs. Range-checking parameters is very useful for debugging. After you validate your program, you can set this property to FALSE to disable range checking and maximize performance.
Inherent IVI Attributes:User Options:Record Value Coercions
Specifies whether the IVI engine keeps a list of the value coercions it makes for integer and real type properties.
Inherent IVI Attributes:User Options:Simulate
Specifies whether NI-RFSA simulates I/O operations. This property is useful for debugging applications without using hardware. After a session is opened, you cannot change the simulation state. Use the niRFSA Initialize with Options VI to enable simulation.
Inherent IVI Attributes:Driver Identification:Description
Returns a string that contains a brief description of NI-RFSA. This property returns RF Signal Analyzer Instrument Driver.
Inherent IVI Attributes:Driver Identification:Driver Prefix
Returns a string that contains the prefix for NI-RFSA. The name of each user-callable VI in NI-RFSA starts with this prefix. This property returns niRFSA.
Inherent IVI Attributes:Driver Identification:Driver Vendor
Returns a string that contains the name of the vendor that supplies NI-RFSA. This property returns National Instruments.
Inherent IVI Attributes:Driver Identification:Revision
Returns a string that contains additional version information about NI-RFSA. For example, NI-RFSA can return Driver: NI-RFSA 2.9, Compiler: MSVC 7.10, Components: IVI Engine 4.00, VISA-Spec 4.00 as the value of this property.
Inherent IVI Attributes:Driver Capabilities:Supported Instrument Models
Returns a comma-separated list of supported devices.
Inherent IVI Attributes:Instrument Identification:Manufacturer
Returns a string that contains the name of the manufacturer for the NI-RFSA device you are currently using.
Inherent IVI Attributes:Instrument Identification:Model
Returns a string that contains the model number or name of the NI-RFSA device that you are currently using.
Inherent IVI Attributes:Instrument Identification:Firmware Revision
Returns a string containing the firmware revision information for the NI-RFSA downconverter for the composite device you are currently using.
Inherent IVI Attributes:Advanced Session Information:Logical Name
Contains the logical name you specified when opening the current IVI session. You may pass a logical name to the niRFSA Initialize VI or the niRFSA Initialize with Options VI. The IVI Configuration Utility must contain an entry for the logical name. The logical name entry refers to a driver session section in the IVI Configuration file. The driver session section specifies a physical device and initial user options.
Inherent IVI Attributes:Advanced Session Information:Resource Descriptor
Indicates the resource descriptor NI-RFSA uses to identify the physical device. If you initialize NI-RFSA with a logical name, this property contains the resource name that corresponds to the entry in the IVI Configuration Utility.
De-embedding:Type
Specifies the type of de-embedding to apply to measurements on the specified port. Use the Active Channel property to specify the name of the port to configure for de-embedding.
De-embedding:Selected Table
Selects the de-embedding table to apply to the measurements on the specified port. Use the Active Channel property to specify the name of the port to configure for de-embedding.
De-embedding:Compensation Gain
Returns the de-embedding gain applied to compensate for the mismatch on the specified port. Use the Active Channel property to specify the name of the port to configure for de-embedding.
Self Calibration:NI 5665/5667/5668R:Downconverter Cal Tone Mode
Specifies the location in a signal path where an RF downconverter calibration tone is injected or whether the tone is disabled.
Self Calibration:NI 5665/5667/5668R:Downconverter Cal Tone Frequency
Specifies the frequency of the RF downconverter calibration tone, in Hz.
Self Calibration:NI 5665/5668R:Calibration Correction for Through Filter
Sets the internal gain self-calibration correction, in decibels, for the IF filter through path. The value you set for this property overrides any previously-set value.
Self Calibration:NI 5665/5668R:Calibration Correction for 300 kHz Filter
Sets the internal gain self-calibration correction, in decibels, for the 300 kHz IF filter path. The value you set for this property overrides any previously-set value.
Self Calibration:NI 5665/5668R:Calibration Correction for 5 MHz Filter
Sets the internal gain self-calibration correction, in decibels, for the 5 MHz IF filter path. The value you set for this property overrides any previously-set value.
Self Calibration:NI 5665/5668R:Calibration Correction for 100 MHz Filter
Sets the internal gain self-calibration correction, in decibels, for the 100 MHz IF filter path. The value you set for this property overrides any previously-set value.
Self Calibration:NI 5665/5668R:Calibration Correction for 320 MHz Filter
Sets the internal gain self-calibration correction, decibels, for the 320 MHz IF filter path. The value you set for this property overrides any previously-set value.
Self Calibration:NI 5665/5668R:Calibration Correction for 765 MHz Filter
Sets the internal gain self-calibration correction, in decibels, for the 765 MHz IF filter path. The value you set for this property overrides any previously-set value.
Self Calibration:RF Conditioning Cal Tone Mode
Specifies the location in a signal path where an RF conditioning calibration tone is injected or whether the tone is disabled.
Self Calibration:RF Conditioning Cal Tone Frequency
Specifies the frequency of the RF conditioning calibration tone, in Hz.
Self Calibration:Digitizer ID
Returns the currently associated digitizer ID. Allows the use of self calibration data when configured in external digitizer mode.
Factory Calibration:NI 5665/5668R:RF Path Selection
Specifies the RF path to use during calibration. This property is valid only during a calibration session. When you set this property, NI-RFSA does not select the RF path based on the downconverter center frequency.
Factory Calibration:NI 5665/5668R:RF Lowband Signal Conditioning Path Selection
Specifies the RF lowband signal conditioning path.
Factory Calibration:NI 5665/5668R:RF Electronic Attenuation Table Index
Selects the value of the RF electronic attenuation from a table of valid configurations. This property is valid only during a calibration session and when you set the RF Path Selection property to RF band 1.
Factory Calibration:NI 5665/5668R:RF Mechanical Attenuation Table Index
Selects the value of the RF mechanical attenuation configuration from a table of valid configurations. This property is valid only during a calibration session.
Factory Calibration:NI 5665/5668R:IF Filter Selection
Specifies the IF filter path used during calibration. The property is valid only during a calibration session.
Factory Calibration:NI 5665/5668R:IF Attenuation Table Selection
Specifies the IF attenuation table to use for external calibration. This property is valid only in a calibration session.
Factory Calibration:NI 5665/5668R:IF Attenuation Table Index
Specifies the IF attenuation index from a table of valid settings. This property is valid only during a calibration session.
Factory Calibration:NI 5665/5668R:IF Attenuation Table Size
Queries the size of the selected IF attenuation table.
Factory Calibration:NI 5665/5668R:LO Path Selection
Selects the LO signal path used during calibration. During non-calibration sessions, NI-RFSA implicitly derives the LO signal path from the center frequency. During calibration sessions, you must explicitly specify the LO signal path. This property is valid only during a calibration session.
Factory Calibration:NI 5665/5668R:LO1 Attenuation
Specifies the LO1 attenuation, in decibels, during a calibration session. This property is valid only during a calibration session.
Factory Calibration:NI 5665/5668R:LO2 Attenuation
Specifies the LO2 attenuation, in decibels, during a calibration session. This property is valid only during a calibration session.
Factory Calibration:NI 5665/5668R:LO3 Attenuation
Specifies the LO3 attenuation, in decibels, during a calibration session. This property is valid only during a calibration session.
Factory Calibration:NI 5665/5668R:Cal Tone Step Attenuation
Specifies the step attenuator, in decibels, to engage in the calibration tone path. This property is valid only during a calibration session.
Factory Calibration:NI 5693:RF Attenuation Index
Specifies the value of the RF attenuation from a table of valid configurations.
External Alignment:NI 5665/5668R:Preselector Tuning DAC Value
Specifies the preselector tuning DAC value during the preselector external alignment step. This value is valid only during a external alignment session.
Device Specific:Vector Signal Transceiver:Signal Path:Input Port
Specifies the connector(s) to use to acquire the signal. To set this property, the NI-RFSA device must be in the Configuration state.
Device Specific:Vector Signal Transceiver:Signal Path:LO In Power (dBm)
Returns the power level expected, in dBm, at the LO IN terminal when the LO Source property is set to LO In.
Device Specific:Vector Signal Transceiver:Signal Path:LO Out Power (dBm)
Specifies the power level, in dBm, of the signal at the LO OUT terminal when the LO Export Enabled property is set to TRUE.
Device Specific:Vector Signal Transceiver:Signal Path:Absolute Delay
Specifies the sub-sample clock delay, in seconds, to apply to the acquired signal. Use this property to reduce the trigger jitter when synchronizing multiple devices with NI-TClk. This property can also help maintain synchronization repeatability by writing the absolute delay value of a previous measurement to the current session.
Device Specific:Vector Signal Transceiver:Signal Path:Decimation Delay
Specifies the sub-sample delay, in seconds, to apply to the acquired signal. To set this property, the NI-RFSA device must be in the Configuration state.
Device Specific:Vector Signal Transceiver:Signal Path:LO Frequency Step Size (Hz)
Specifies the step size for tuning the local oscillator (LO) phase-locked loop (PLL).
Device Specific:Vector Signal Transceiver:Signal Path:LO VCO Frequency Step Size (Hz)
Specifies the step size for tuning the internal voltage-controlled oscillator (VCO) used to generate the LO signal.
Device Specific:Vector Signal Transceiver:Signal Path:LO PLL Fractional Mode Enabled
Specifies whether to use fractional mode for the local oscillator (LO) phase-locked loop (PLL). Fractional mode gives a finer frequency step resolution, but it may result in non harmonic spurs. Refer to the specifications document for your device for more information about fractional mode and non harmonic spurs.
Device Specific:Vector Signal Transceiver:Acquisition:Advanced:Downconverter Frequency Offset
Specifies an offset from the I/Q carrier frequency for the downconverter. If you set this property, any measurements outside the instantaneous bandwidth of the device are invalid. After you set this property, the RF downconverter is locked to that frequency offset until the value is changed or the property is reset.
Device Specific:Vector Signal Transceiver:Triggers:Ref:IQ Analog Edge:Source
Specifies the channel from which the device monitors the trigger. Use a value of "I" to monitor the I channel. Use a value of "Q" to monitor the Q channel. Use a value of "I,Q" to monitor both I and Q channels. This property affects the device operation only when the Reference Trigger Type property is set to IQ Analog Edge.
Device Specific:Vector Signal Transceiver:Triggers:Ref:IQ Analog Edge:Hysteresis
Specifies the size of the hysteresis window on either side of the trigger level. The device triggers when the signal passes through the threshold you specify with the IQ Analog Edge Trigger Level property, has the slope you specify with the IQ Analog Edge Trigger Slope property, and passes through the hysteresis window that you specify with this property. This property affects the device operation only when the Reference Trigger Type property is set to IQ Analog Edge.
Device Specific:Vector Signal Transceiver:Triggers:Ref:IQ Analog Edge:Slope
Specifies whether the device asserts the trigger when the voltage level is rising or falling. When you set the Reference Trigger Type property to IQ Analog Edge, the device asserts the trigger when the signal level exceeds the specified level with the slope you specify. This property affects the device operation only when the Reference Trigger Type property is set to IQ Analog Edge.
Device Specific:Vector Signal Transceiver:Triggers:Ref:IQ Analog Edge:Level
Specifies the analog level, in volts, at which the device triggers. 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 affects the device operation only when the Reference Trigger Type property is set to IQ Analog Edge.
Device Specific:Vector Signal Transceiver:Triggers:Synchronization:Sync Start Trigger Master
Specifies whether the device is the master for synchronizing the shared Start Trigger between multiple devices. The master device distributes the synchronized Start Trigger to all devices in the system through the Start Trigger distribution line.
Device Specific:Vector Signal Transceiver:Triggers:Synchronization:Sync Start Trigger Dist Line
Specifies which external trigger line distributes the synchronized Start Trigger signal. When synchronizing the Start Trigger, configure all devices to use the same Start Trigger distribution line.
Device Specific:Vector Signal Transceiver:Triggers:Synchronization:Sync Ref Trigger Master
Specifies whether the device is the master for synchronizing the shared Reference Trigger between multiple devices. The master device distributes the synchronized Reference Trigger to all devices in the system through the Reference Trigger distribution line.
Device Specific:Vector Signal Transceiver:Triggers:Synchronization:Sync Ref Trigger Dist Line
Specifies which external trigger line distributes the synchronized Reference Trigger signal. When synchronizing the Reference Trigger, configure all devices to use the same Reference Trigger distribution line.
Device Specific:Vector Signal Transceiver:Triggers:Synchronization:Sync Advance Trigger Master
Specifies whether the device is the master for synchronizing the shared Advance Trigger between multiple devices. The master device distributes the synchronized Advance Trigger to all devices in the system through the Advance Trigger distribution line.
Device Specific:Vector Signal Transceiver:Triggers:Synchronization:Sync Advance Trigger Dist Line
Specifies which external trigger line distributes the synchronized Advance Trigger signal. When synchronizing the Advance Trigger, configure all devices to use the same Advance Trigger distribution line.
Device Specific:Vector Signal Transceiver:Triggers:Synchronization:Sync Sample Clock Master
Specifies whether the device is the master when synchronizing the Sample Clock between multiple devices. The master device distributes the Sample Clock sync signal to all devices in the system through the Sample Clock sync distribution line.
Device Specific:Vector Signal Transceiver:Triggers:Synchronization:Sync Sample Clock Dist Line
Specifies which external trigger line distributes the Sample Clock Sync signal. When synchronizing the Sample Clock between multiple devices, configure all devices to use the same Sync Sample Clock distribution line.
Device Specific:Vector Signal Transceiver:Triggers:Synchronization:Sync Ref Trigger Delay Enabled
Specifies whether the Reference Trigger is delayed with the data. Set this property to Disabled when the Reference Trigger Type property is set to IQ Power Edge or IQ Analog Edge.
Device Specific:Vector Signal Transceiver:IQ In Port:Carrier Frequency
Configures the frequency of the signal. The onboard signal processing (OSP) frequency shifts the signal at this frequency to baseband prior to acquiring it.
Device Specific:Vector Signal Transceiver:IQ In Port:Vertical Range
Specifies the voltage range for the I/Q terminals.
Device Specific:Vector Signal Transceiver:IQ In Port:Terminal Configuration
Configures the terminal configuration of the I/Q IN port.
Device Specific:Vector Signal Transceiver:IQ In Port:Common Mode Level
Specifies the common-mode level, in volts, presented at each differential input terminal. Common-mode level shifts both positive and negative terminals in the same direction. This must match the common-mode level of the device under test (DUT).
Device Specific:Vector Signal Transceiver:IQ In Port:Temperature (Degrees C)
Returns the temperature, in degrees Celsius, of the I/Q IN circuitry on the device.
Device Specific:5606:Noise Source Power Enabled
Enables the 28 V DC source on the device front panel.

NI-RFSA LabVIEW VI Reference

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