开云体育

On Wed, Dec 11, 2019 at 03:52 AM, Dennis W1UE wrote:

I'm a newbie user- just received one last week. I've downloaded an instruction package on how to use the VNA. I've used a Mini VNA for several years, and have had problems because of its limited 50dB dynamic range.

What software works with the Nanovna? Are there pros or cons with the various packages? Or am I limited to only one? My primary use of the VNA
is to measure BPFs, HF Stubs, and HF antenna parameters.

=========================================================
Dennis,
I'm surprised for its cost that the MiniVNA has only a 50 dB dynamic range. I am assuming you are referring to S21 measurements.

The NanoVNA has nominal S21 dynamic range specifications of: 50k-300MHz better than 70dB; 300M-600MHz better than 50dB; and the 600M-900MHz better than 40dB. You gain about 20 dB more in the 50k-300MHz range but about the same elsewhere.

The "Software" section of this Wiki page, /g/nanovna-users/wiki/home , provides some of the different software applications available for the NanoVNA. As a new user you'll want to explore other offering on the same Wiki page.

Your experience using the MiniVNA should have you up and using the NanoVNA in no time.

- Herb

I agree with Joe's decision to not release his software to anyone. He has already made several great videos on the nanoVNA which I found useful. Some people feel "entitled" to his work and this was expressed in the eevblog thread on this topic. Unfortunately there are individuals who will criticize his code, demand support and claim credit for forked versions of his code. Who needs that kind of aggravation when you have lost interest in the project as he clearly stated?

I appreciate people like Rune who publish their code, offer support and updates because it takes a lot of work to do so. The community needs to respect this kind of work and not become demanding and discourage him.

#82 : On The Two-Port Sine Qua Non Practical Application - Source and Load
-
REF: #81" : update : on the physical expression of two-port s-parameters
10 December 2019 - /g/nanovna-users/message/8076

Hello,

Allow us, please, to announce that we just finished our work on this subject and
uploaded the updated results at the very same address:



Also allow us, please, to say that in our sow, the virtue of this formulation lies
on that : facupov, we are not able to see any simpler way to express it more
completely other than this one - well, at least currently.

Sincerely,

gin&pez@arg

:82#

Hi Dennis,
there's nothing immediately limiting you to using only once package. I can
only speak for NanoVNA-Saver, and it certainly uses industry standard
Touchstone files where possible, and it does not require using specific
firmware on your device - though in general, it works best and gives the
best results using new(ish) firmware.

I hope you enjoy using your NanoVNA, and I'll happily take any feedback you
might have on NanoVNA-Saver!
--
Rune / 5Q5R

I'm a newbie user- just received one last week. I've downloaded an
instruction package on how to use the VNA. I've used a Mini VNA for
several years, and have had problems because of its limited 50dB dynamic
range.

What software works with the Nanovna? Are there pros or cons with the
various packages? Or am I limited to only one? My primary use of the VNA
is to measure BPFs, HF Stubs, and HF antenna parameters.

Dennis W1UE

Thanks, this helps.

As I understand now: they determine the embedded port parameters by using the equivalent of a one-port calibration with 3 known terminations, then express the embedded port parameters in the response measured for these 3 terminations, thus allowing the identification of regions of uncertainties in these measurements so these can be translated into uncertainties of the embedded port parameters (the uncertainty derivations) and this gives the uncertainty of the measurements done with the one port VNA?


--
NanoVNA Wiki: /g/nanovna-users/wiki/home
NanoVNA Files: /g/nanovna-users/files
Erik, PD0EK

In addition, ISTR that the Gnu Octave development team considers any lack of functionality as compared to MatLab to be a bug.

Sent from a small flat thingy

Eric;

It might be helpful to review msg #6670. GIN&PEZ presents the derivation of the G-mini equation which is the one-port measurement model, which they summarize in msg #6798.

That one port model, based on an embedded S parameter matrix consisting of an (s, o, l, and DUT) terminated LeastVNA (virtual) reflection port, was then rearranged, then presented, and subsequently revised (corrected) in msg #7272 as a derivation, of a two port indirect measurement model that relies only on the single one port set of reflection measurements... not the independent S11, S22, and thru measurements in common use today.

An important component of their work is that all uncertainties are included in the calculations, and the s, o, l standards used are all considered nominal values. Regions of uncertainty are derived from the results but are defined independently, as a graphical mapping surrounding each measurement based on easily defined real boundaries.

This is my understanding to this point subject to forthcoming corrections by GIN&PEZ.

I have not yet studied the uncertainty derivations in detail, but the concept appears to be sound. I have independently coded the G-mini equation, and have found it to be spot on in agreement with the corrected output results of 3 independent analyzers; the NanoVNA, an N2PK VNA, and an AQRP VIA of similar architecture to the NanoVNA.

I personally find it helpful to return to and review previous posts periodically as I begin to sense that I am gaining in my understanding. I find the communications becomes more clear and it often exposes important details I missed altogether. The process does take a lot of additional effort on my part, but I find it beneficial in areas that the language fails to translate precisely.

I hope you find at least some part of this to be helpful.

--
73

Gary, N3GO

Please have a look here:


Quote: "Hardware design material is disclosed to prevent bad quality clone. Please let me know if you would have your own unit."


--
NanoVNA Wiki: /g/nanovna-users/wiki/home
NanoVNA Files: /g/nanovna-users/files
Erik, PD0EK

thats fair enough but why cant it be offered on an as is basis warts and all with no support,at least give others a chance to work with it!

I don't think your thoughts about a person's ego is of any relevance
whatsoever to this mailing list.

I understand that Joe does not have the time nor interest in supporting his
software - and knowing as I do the number of support requests that can
easily arise from making a piece of software for the NanoVNA - ;-) - I
fully understand where he's coming from. :-)

--
Rune / 5Q5R

the guy who did that on youtube has a long thread on eevblogg,for some reason he wont release the s/w has been asked about releasing it a few times but always replys with what looks like b.s lame excuses,think its more about the guys ego,just my thoughts.

That seems unlikely. On the contrary; the development to move it from
300MHz to 900MHz would likely not have happened, and the product would be a
largely unknown hobby project - akin to what it was a year ago.

Open sourcing things like this creates innovation in the community. I'm
still amazed at the animosity I see against being open about one's
inventions and ideas in the amateur radio community - I would have thought
the nature of it would be more conducive to openness.

--
Rune / 5Q5R

edy555 decided to open source SW AND HW to avoid bad clones.

--
NanoVNA Wiki: /g/nanovna-users/wiki/home
NanoVNA Files: /g/nanovna-users/files
Erik, PD0EK

In view of the way this thing has took off,i imagine the developer is miffed about making it open source,would of thought there would have been a fair sum of money earnt if not.

While not fully compatible with LabView you can use GNU Octave (free) to very quickly create all kind of nice instrument control and computational applications.
Octave has (almost?) all of the computational functions of LabView and it also has UI capability so you can quickly create a user interface to control you device.



--
NanoVNA Wiki: /g/nanovna-users/wiki/home
NanoVNA Files: /g/nanovna-users/files
Erik, PD0EK

While looking up the various versions of LabVIEW, I came across this webpage:



Where it was mentioned that National Instruments is going to be developing a free 'community' version of LabVIEW.

Please refer to the webpage for further info.

With regard to historical references, while edy555 has not followed up on his original kit with a fully manufactured product he has remained at the forefront of the NanoVNA firmware evolution and also maintains the NanoVNA.py Python class module.

His GitHub site where he maintains the firmware repository is at: . I've assumed by association that ttrftech and edy555 are pseudonyms for the same person.

-Herb

My company has the full $3,000 version of LabView. However, there's a VERY
INEXPENSIVE version available for "Home" use at $49 from Digilent:



It is the 2014 version - but for most hobbyists it's all you need.

Cheers,
Lyle
--
On Tue, 10 Dec 2019 13:59:35 -0800
"aparent1/kb1gmx" <kb1gmx@...> wrote:

No kidding... I believe there is a student version that only breaks the
bank. Base edition is 399$, full is over 3100$ and up...

It is Labview a National Instruments product and its pretty nice tool for
building test or measurement systems and even simulations. I've used it
with PNAs to build step and repeat measurement systems for antennas
ranges.

--
73 NM6Y
Bickley Consulting West Inc.


"Black holes are where God is dividing by zero"


--
73? ?NM6Y
Bickley Consulting West Inc.


"Black holes are where God is dividing by zero"

That LabVIEW application was written by a gentleman over at eevblog and he is not releasing it to anyone. It runs on LabVIEW.?



On Tue, 10 Dec 2019 at 4:18 PM, Hans , PA3HGT via Groups.Io<pa3hgt@...> wrote: Hello all,

I saw on you tube the nice software for the NanoVNA : NanoVNA Labview :
I am very curious to try it, is it where i can download this program.
I searched but no succes ;-(

Thanks in advance !