Returns a cluster containing information about the power spectrum NI-RFSA computes.

Note The NI Spectral Measurements Toolkit (SMT) requires this information.

Supported Devices: PXIe-5644/5645/5646, PXI-5661, PXIe-5663/5663E/5665/5667/5668, PXIe-5820/5830/5831/5832/5840/5841/5842/5860


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Inputs/Outputs

  • civrn.png instrument handle —

    instrument handle identifies your instrument session. instrument handle is obtained from the niRFSA Initialize VI or the niRFSA Initialize With Options VI.

  • cerrcodeclst.png error in —

    error in describes error conditions that occur before this node runs. This input provides standard error in functionality.

  • iivrn.png instrument handle out —

    instrument handle out passes a reference to your instrument session to the next VI. instrument handle is obtained from the niRFSA Initialize VI or the niRFSA Initialize With Options VI and identifies a particular instrument session.

  • inclst.png spectral info —

    spectral info returns properties of the computed spectrum such as spectrum type, spectrum scale (linear or logarithmic), the window type the VI used to compute the spectrum, window size, and FFT size. Connect this parameter to subsequent VIs that contain the spectral info input. Do not modify the values.

  • iu16.png spectrum type —

    spectrum type returns the type of spectrum.

  • iu16.png linear/dB —

    linear/dB returns whether the spectrum scale is linear or logarithmic.

  • iu16.png window —

    window returns the time-domain window that the VI uses.

  • ii32.png window size —

    window size returns the window size used in window.

  • ii32.png FFT size —

    FFT size returns the FFT size.

  • ierrcodeclst.png error out —

    error out contains error information. This output provides standard error out functionality.