Dragan,
This just confuses me again.
"Remove the calibration and save that to the default slot (0 slot) when
using NanoVNA Saver."
Remove *which* calibration? And save *what* to slot 0? Are you talking about the H4 device? Do you mean from the calibrate menu, choose "Reset" and then "Save" to memory 0?
What values does this put into memory 0? And since nanovna-saver depends on the calibration of the H4 device, what is that calibration now (after reset and store 0)?
"When you calibrate the Nano (on device calibration) in the range as the
documentation suggests 0-900MHz with 401 points..."
Where is there an option on the H4 device to select the number of points used for calibration? I haven't seen that as a menu option.
If the calibration of nanovna-saver gives different results, depending on the state of the H4's calibration, I don't know what to believe.
Forgive me, I still don't understand how this works together. I don't see why nanovna-saver can't just read raw results from the H4, and then use those for a calibration (which would make it independent of the H4's calibration). There have been some mentions about different numbers of points, about reporting invalid values, etc.
Does anyone KNOW, not guess, what the proper procedure to calibrate this system using nanovna-saver is? Nanovna-saver is what it is, I'm not bashing it or trying to change it -- I'm just trying to understand the limitations and requirements to get good results out of the software. The ability to store calibrations, write s-parameter files, and plot using different formats is invaluable to me. I *really* want to use it for these features, but not if I can't be sure of the measurement.
73,
Dean W8ZF