I'm hoping someone can help me with my inability to calibrate my NanoVna
classic after upgrading
sucessfully to 1.2.20h.dfu.
While attempting to debug this problem, I did the following:
1) Ran a 'clearconfig 1234' via putty
2) Did a Touch Cal
3) Reduced the si535I frequency to 290 Mhz
4) Reset the calibration before starting the calibration process
But the nanoVna just wouldn't confirm a successful calibration when I
tested the Smith Chart with a 50 ohm or short load. I've attached an image
of what i see.
The odd part is that every so often the nanoVna does calibrate successfully
but when
I try and repeat the process it fails to calibrate.
Any clues? I love this little device and it is now a matter of personal
pride to get it to work!
Sanjay
AI6PM