Hello,

I've encountered a peculiar issue with my V2 Plus4. I've been using it within a Python application, gathering raw uncalibrated values with the skrf.vi.vna.NanoVNAv2 class, and everything has been functioning smoothly so far. However, when I use it directly with NanoVNA Saver on Linux, I'm now compelled to calibrate each time within the application, or else I receive entirely inaccurate measurements.

My question is, are there (or were there) any factory calibration networks saved somewhere within the device?

I've never had to do this in the past (though I'm aware that it's always better to calibrate).

Thank you, and
73! de HB9IIU

Hi, it is always necessary to calibrate before making measurements, but you can store the calibration in a file in your program. The factory calibration only makes minor adjustments to device parameters and isn't a substitute for user calibration, which needs to be done with external Short, Open, and Load standards.
Thanks,
NanoRFE Support