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No it does not work with the NanoVNA-F. The firmware in the -F does not have the "new " data transfer protocol. Roger

Hi Manfred, I'll add the GR 1606A to WB2UAQ's list -- Dick Benson, W1QG, who wrote the MATLAB app mentioned in my previous post, has used his to measure capacitance Q in the thousands range (e.g.

Only thing possibly missing is the Smith Chart. Looks good to me as well. Have a look through the Wiki for starters. Dave - W?LEV wrote: -- *Dave - W?LEV* *Just Let Darwin Work*

By any chance does it work with the NanoVna-F. When I start my NanoVna-F it does detect the device version 0.2.1 but the seems to time out. NanoVNA app version is 1-1-1-193. Mike N2MS

I had a play yesterday with the newer firmware versions and the 111 VNA App. Overall I wasn't that impressed and went back to my own PC tools and the earlier firmware. With my PC tools I can correct

Hi, Very useful discussions around this demo kit. I was trying to do the measurements on it but I realized that the OPEN structure nr 14 was causing me large problems. After calibration it did not

Hello Toma? Roger Need has made a comparion of two different RF Demo kit PCB's. See: /g/nanovna-users/message/20702 and the attached photo: RD-Demo-Kit_PCB_comparison.png How about

I may be wrong, but for NanoVNA-H and H4 the requirement is Virtual COM Port Driver. https://www.st.com/en/development-tools/stsw-stm32102.html Martin 9A2JK

looks OK to me

NanoVNA app only works with the latest firmware from DiSlord or Hugen. The reason is that it uses a different data transfer protocol. Roger

What is wrong with the device?

Thanks - this 1/11 app looks promising ! What driver is required for Windows 7/8/10 ? I cannot connect so I know I do not have the correct driver.

Hi Manfred, I don't have much to offer because you don't have one of the ancient Q meters but with these old instruments you could determine the Q of a cap. I also have a GR-821 A Twin T Impedance

this is insteresting

I see that zarath is making changes.. Maybe some of them are fixing the problems? the "master" appears to be pretty similar to what I have from August.

Well, that's difficult to say, having no "standard" crystal. With my limited recent experience, I think it compares well with other methods. I'm accustomed to seeing differences of 2% or sometimes

Jeff, I just had a quick look at those papers. I didn't read them fully, and I didn't work through the maths, since obviously this isn't what I'm looking for. Unless I missed something, he just

Dear all, I've been using the RF Demo Kit for calibrating my VNA when measuring devices behind a U.FL connector (I'm only using fields 13, 14, 15 - short, open, load). I found out that I get better

Yes I was wondering how accurate is his method as he said it's only an approximation. Is the PHSNA value an absolute measurement?

Yes... Larry Rothman gave you the link to it. There are quite a few outstanding issues. https://github.com/NanoVNA-Saver/nanovna-saver/issues Roger