Self-calibrates the NI-RFSA device and associated modules that support self-calibration. If self-calibration completes successfully, the new calibration constants are stored immediately to the nonvolatile memory of the module. Refer to the specifications document for your device for more information about how often to self-calibrate.

For best results, NI recommends that you perform a complete self-calibration without omitting any steps. However, if the niRFSA Is Self Cal Valid VI indicates that the calibration data for a specific step is still valid, you can omit that step for faster execution.

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

Related Topics

PXI-5661 Calibration

PXIe-5663/5663E Calibration

PXIe-5665 Self-Calibration

PXIe-5667 Self-Calibration

PXIe-5668 Self-Calibration

PXIe-5820 Self-Calibration

PXIe-5830 Self-Calibration

PXIe-5831/5832 Self-Calibration

PXIe-5840 Self-Calibration

PXIe-5841 Self-Calibration


icon

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.

  • c1di64.png steps to omit —

    steps to omit specifies which calibration steps to skip during the self-calibration process. The default value is an empty array, which indicates that all supported calibration steps are performed. The only valid value for the PXIe-5820/5830/5831/5832/5840/5841/5842/5860 is an empty array.

    Preselector Alignment Omits the Preselector Alignment step. If you omit this step and the niRFSA Is Self Cal Valid VI indicates the calibration data for this step is invalid, the preselector alignment specifications are not guaranteed. This step applies only to the PXIe-5605/5606.
    Gain Reference Omits the Gain Reference step. If you omit this step and the niRFSA Is Self Cal Valid VI indicates the calibration data for this step is invalid, the absolute accuracy of the device is not guaranteed.
    IF Flatness Omits the IF Flatness step. If you omit this step and the niRFSA Is Self Cal Valid VI indicates the calibration data for this step is invalid, the IF flatness specifications are not guaranteed.
    Digitizer Self Cal Omits the Digitizer Self Cal step. If you omit this step and the niRFSA Is Self Cal Valid VI indicates the calibration data for this step is invalid, the absolute accuracy of the device is not guaranteed.
    LO Self Cal Omits the Local Oscillator (LO) Self Cal step. If you omit this step and the niRFSA Is Self Cal Valid VI indicates the calibration data for this step is invalid, the LO phase-locked loop (PLL) may fail to lock.
    Amplitude Accuracy Not used by this VI.
    Residual LO Power Not used by this VI.
    Image Suppression Not used by this VI.
    Synthesizer Alignment Omits the Synthesizer Alignment step. If you omit this step, the LO PLL is not adjusted.
    DC Offset Omits the DC Offset step. This step applies only to the PXIe-5820.
  • 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.

  • ierrcodeclst.png error out —

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

    • Details

    Open NI-RFSG Session for the PXIe-5820/5830/5831/5832/5840/5841/5842/5860

    If there is an existing NI-RFSG session open for the same PXIe-5820/5830/5831/5832/5840/5841/5842/5860 while this VI runs, it may remain open but cannot be used for operations that access the hardware, for example niRFSG Commit or niRFSG Initiate.

    PXIe-5841 with PXIe-5655

    The PXIe-5841 maintains separate self-calibration data for both the PXIe-5841 standalone and when associated with the PXIe-5655. Use this VI once for each intended configuration.

    IF Flatness Step Time

    • The IF Flatness step can take approximately 15 minutes to complete on the PXIe-5665 (3.6 GHz) and approximately 25 minutes to complete on the PXIe-5665 (14 GHz).
    • The IF Flatness step can take approximately 1 minute to complete on the PXIe-5667 (3.6 GHz) and approximately 1.5 minutes to complete on the PXIe-5667 (7 GHz).
    • The IF Flatness step can take approximately 15 minutes to complete on the PXIe-5668.