I use nanovna-saver with my H4 because it aggregates several useful functions for operating, storing, printing, and exporting measurements. I am confused about the calibration done from nanovna-saver. I know I can load and save calibrations on my PC as files. This works and I use it all the time. I wanted to take the H4 out to the yard and do measurements at the antenna after I calibrated with nanovna-saver. It seems that it did not retain the calibration. I don't remember if I had turned the H4 off, then back on, but the results were different when I then brought out my laptop and loaded my calibration file. Everything seemed to measuring correctly, after that. So I have some questions;
1) What is the persistence of calibration done through nanovna-saver? I.e., does it persist if the USB cord is disconnected and the H4 is taken for mobile measurements?
2) Is the calibration done by nanovna-saver dependent on the calibration done by the H4's internal cal? For instance, say memory #0 on the H4 has a bad calibration stored. Since this is the default used by the H4 when it boots up, will it corrupt the calibration done in nanovna-saver. Does nanovna-saver depend on the calibration state of the H4 to be correct?
3) Is is possible to store the calibration done in nanovna-saver to one of the memory states in the H4? Storing it in memory #0 would allow for a calibration to be persistent through a power cycle.
Thanks and 73,
Dean W8ZF
