Hello,
I am performing an external calibration of a PXIe-5622 IF digitizer, following the official document NI 5622 Calibration Procedure (P/N 372669C-01, Nov 2011).
Step 8 of both the Absolute Amplitude Accuracy and Bandpass Amplitude Flatness verification sections requires the Apply Frequency Response Compensation VI which per the document should be downloaded from ni.com/info using info code ex6vhg. This info code no longer resolves, and I could not find the file anywhere on the current NI site, in the NI-SCOPE examples, or in niScopeCal.llb.
This VI is essential to the procedure: it configures the equalization FIR filter and returns the Reference Flatness Gain Correction Factor used directly in the error formulas of steps 15 and 23. Without it, the documented LabVIEW path cannot be completed.
Does anyone still have the ex6vhg package (Apply Frequency Response Compensation VI) and could attach or share it? Alternatively — what is the currently supported way to obtain the gain correction factor within an NI-SCOPE session? The C/C++ path in the same document uses niScope_GetFrequencyResponse + NISCOPE_ATTR_EQUALIZATION_NUM_COEFFICIENTS + niScope_ConfigureEqualizationFilterCoefficients — are these exposed as VIs in recent NI-SCOPE versions, or is a Call Library Function Node wrapper the expected approach? NI's Nigel AI assistant suggested using NI-RFSA (niRFSA Get Frequency Response) instead. That seems inconsistent with the NI-SCOPE-based calibration procedure (different driver/session on the same device, and no gain correction factor as defined in steps 15/23). Can anyone from NI confirm whether that suggestion is actually applicable here, or whether the NI-SCOPE path is the correct one?
Any help — the original file, or confirmation of the supported equivalent — would be greatly appreciated. I suspect this affects anyone attempting the 5622 calibration procedure today.
Thanks!
