Represents the properties used to configure the hardware when acquiring in I/Q mode.

Derives from

Syntax

Namespace: NationalInstruments.ModularInstruments.NIRfsa

public class RfsaSpectrumAcquisitionConfiguration : RfsaSubObject

Remarks

For more information, refer to NI RF Vector Signal Analyzers Help.

Properties

NameDescription
AveragingMode

Gets or sets the averaging mode for the spectrum acquisition.

CenterFrequency

Gets or sets the center frequency, hertz (Hz), in a spectrum acquisition.

FftSize

Gets the size of the fast Fourier transform (FFT).

FftWidth

Gets or sets the FFT width of the device. The FFT width is the effective bandwidth of the signal path during each signal acquisition.

FftWindowShapeFactor

Gets 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.

FftWindowSize

Gets the size of the window used in the fast Fourier transform (FFT).

FftWindowType

Gets or sets the time-domain used in the FftWindowType.

NumberOfAverages

Gets or sets the number of acquisitions to average. The averaging process returns the final result after the number of averages is complete.

NumberOfSpectralLines

Gets or sets the number of spectral lines expected with the current power spectrum configuration.

PowerSpectrumUnits

Gets or sets the units of the power spectrum.

ResolutionBandwidth

Gets or sets the resolution along the x-axis of the spectrum, in hertz (Hz).

ResolutionBandwidthType

Gets or sets how the ResolutionBandwidth property is expressed.

SmoothSpectrumEnabled

Gets or sets whether an optimized IF filtering selection is made at different spectrum frequency ranges during spectrum acquisition.

Span

Gets or sets the frequency range of the computed spectrum, in hertz (Hz).

SpectrumOspSamplingRatio

Gets or sets the over sampling ratio (OSP) on the digitizer board in spectrum mode.

SubspanOverlap

Gets or sets the amount of overlap between consecutive subspans in a multispan spectrum acquisition.

Methods

NameDescription
ConfigureSpectrumFrequencyCenterSpan(double, double)

Configures the span and center frequency of the spectrum read by NI-RFSA. A spectrum acquisition consists of data surrounding the center frequency.

ConfigureSpectrumFrequencyStartStop(double, double)

Configures the start and stop frequencies of a spectrum read by NI-RFSA.