I forgot to mention That I used 10 Segments in NanoVNA-Saver
Jos
Op 25-1-2020 om 21:37 schreef Jos Stevens:
toggle quoted message
Show quoted text
Hi Oristo and Herb,
Thinks for the pictures Oristo, i think they are from the 2.8" NanoVNA-H, my 2.8 -H version works well, this problem is? with my VNA new version H4.
Herb,? yes I did use the calibration wizard and I have done it so often that I can do it blindfolded..
The only thing different is that For the H4 I used portsavers and used one of the cables that were in the box of the -H4, the firmware is still from the first of Januari 2020, I did not upgrade yet because I learned that there are problems with the new firmware.
Anyhow you say that you have no problems,? I'm using NanoVNA-Saver 0.2.2.1, the latest version as far as I know. I hardly can believe that the problem is in the hardware, because the hardware stand alone shows "Ch1 Logmag 10 dB/-1.42 dB @ 50 kHz" , -0.07 dB @ 810Mhz and -1.55 dB @ 1500 MHz after a 101 point calibration. A minute ago I ran the calibration again on NanoVNA-Saver and attached the pictures before and after pressing "Apply".
What can I do more ?
Jos
Op 25-1-2020 om 19:04 schreef hwalker:
On Sat, Jan 25, 2020 at 09:19 AM, Jos Stevens wrote:
" I'm testing my new NanoVna-H4 iusing NanoVNA-Saver and have? a problem doing the 2 port calibration"
=======================================================================================
Jos,
??? I just performed a full 2-port calibration of my NanoVNA-H4 using NanoVNA-Saver and did not experience any problems.? Did you use the calibration wizard?? It should direct you through a full 1-port calibration and then ask if you want to continue with a 2-port calibration.? If you follow the directions and still have problems with s21 results, then you may want to verify that the cables and barrel you are using for through calibration are not defective (it occasionally happens).
- Herb
