rfsa c api reference

niRFSA_GetSpectralInfoForSMT

  • Updated2024-05-08
  • 1 minute(s) read

niRFSA_GetSpectralInfoForSMT

ViStatus niRFSA_GetSpectralInfoForSMT(ViSession vi, SmtSpectrumInfo* spectrumInfo);

Purpose

Returns 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

Parameters

Input
Name Type Description
vi ViSession Identifies your instrument session. vi is obtained from the niRFSA_init or niRFSA_InitWithOptions function.
Output
Name Type Description
spectrumInfo SmtSpectrumInfo* Returns returns properties of the computed spectrum such as spectrum type, spectrum scale (linear or logarithmic), the window type the function used to compute the spectrum, window size, and FFT size. Pass this parameter to subsequent functions that contain the spectrumInfo parameter.

Return Value

Name Type Description
status ViStatus Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. Examine the status code from each call to an NI-RFSA function to determine if an error has occurred.

To obtain a text description of the status code and additional information about the error condition, call the niRFSA_GetError function. To clear the error information from NI-RFSA, call the niRFSA_ClearError function.

The general meaning of the status code is as follows:

Value Meaning
0 Success
Positive Values Warnings
Negative Values Errors

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