Gervais:
I have good news--- I've had similar difficulties getting to understand
what to do with my NanoVNA-H4.
I came upon a very informative book that I bought on Amazon to read on my
Kindle app in this laptop.
It's called "NanoVNAs Explained for the Radio Amateur: The author is Mike
Richards, G4WNC. It's copyright 2022, and the price is about USD 20, as I
recall.
The great thing is that he starts out explaining what VNA's are, how & when
invented. And then he moves on to the NanoVNA, explaining what the two
ports are, and why they are called "S11" or "S21"---- etc.
Then he moves on to examples and limitations of these inexpensive units
[mostly bandwidth and sensitivity at VHF and above.]
Finally, he tells about a freeware program called "NanoVNA-saver"---where
to download it, and what it lets you do. The examples in that section are
worth the price of the book!
The entire Part 2 of the book is a series of sections on topics like
"antenna feeder loss", "Passive filter measurement" and "Cable checker" to
name a few.
Oh! He also has a very clear explanation of how a Smith Chart works.
73
Bill, K2TNO
On Thu, Nov 7, 2024 at 7:08?AM Gervail Antoine via groups.io
<gervail.antoine@...> wrote:
Hello guys,
I'm new here and I'm having a hard time figuring out how to use my NanoVNA
to measure those things.
I made a search in the group topics but it's always about the results and
I can't really find any simple tutorial on how to take those measurements.
- About transformers I would like to measure the ratio but I don't really
know where to plug my nanovna to do that and how to configure it.
I have "three outputs" primary, common and secondary. Should I use the 2
ports of the nanoVna to try and obtain a result ?
- for the inductors I would like to know if I can just plug to the 2 ends
of it and find it's value ? which value should I show on my display ?
- for the trap filter I used the method where you just go through the
inductor with a cable and look at the phase but I'm not really sure it's
the best way to do it, can I just plus to A and B on my graph and look at
the result instead ?
If you have any link or video that shows the detail of the measurement and
wiring process I'd greatly appreciate that.
As I said I'm a new ham so I don't really know how to use my VNA except
for measuring SWR of my antenna but I'm convince it's a great tool, I just
need to learn how to use it.
