Date   

Bad calibration on nanovna-saver #calibration #firmware #docs

n.s.shadrin@...
 

Hello everyone!
I have found the difference between Internal calibration on device and calibration on nanovna-saver.

I was calibrate on pcb by soldering/desoldering open stab/short 0402 resistor (0 ohm) and 50 ohm 0402 resistor. When I do this by internal device calibration it successfully done.

But if I try to do this in nanovna-saver then I keep error “two of short, open and load returned the same values at frequency ...”. For more control of this process I had sweep every steep and looking for the graphics. It all was different for every step open/short/load.

How can I fix this?
And does any way to take internal files of calibration in nanovna2 and use it in nanovna-saver?


Re: Old Guy--New User

Jeffrey Reid
 

Larry, thank you for the information. Will get to reading.

Jeffrey
N6TDG


Re: Old Guy--New User

Jeffrey Reid
 

Thank you for the information Jerry.

Jeffrey
N6TDG


Re: nanoVNA Partner #nanovna_partner

Chris K2STP
 

So, where can we get a "clean" copy of this? I'd love to try her out.....

--
Regards,
K2STP   Chris


Re: Old Guy--New User

Jerry Gaffke
 

Tomohiro Takahashi (AKA edy555) in Japan kicked this off with his low volume kit
that I believe is no longer available:
https://github.com/ttrftech/NanoVNA
Hugen in China is mass producing a completed device with significant improvements
https://nanovna.com/
Hugen at first just called it the "nanovna", had the same 2.8" screen as edy555's design.
Hugen changed the name to nanovna-H, made some minor changes to improve
accuracy at 1ghz+ frequencies, and to allow easier comunication over a USB-C cable.

Most of the clones are of the nanovna, or perhaps nanovna-H, have the 2.8" screen.

There are a number of variants being built.
Hugen is building the nanovna-H4 with a 4" screen, has a bigger processor, but other than the screen
is pretty much identical to your nanovna-H.
There is a nanovna-F, also with a 4" screen, being built by somebody else, has significant changes,
but I believe is roughly equivalent to the nanovna-H4.
The SAA-2 designed by OwO and friends is good to 3ghz.
The new V2 that Hugen is working on should do 6ghz.

But for most of us using these things below 1ghz, any of the variants will do.

Regarding the SAA2, Hugen posted a polite reply to OwO in the recent forum thread.
His post was lost along with all others when the thread was terminated.
Hopefully Hugen will make it publicly accessible elsewhere.

R&L distributes Hugen's products here in the USA, I was very happy buying through them.
I bought $60 nanovna-H4 with the 4" screen, they also sell a 2.8" version, and the SAA2.
The tinySA might also be of interest. Arrived in about 3 days.
http://www.randl.com/shop/catalog/product_info.php?cPath=8620&products_id=75145

A good starting place for figuring out how to use a nanovna is the hexandflex tutorial:
https://hexandflex.com/2019/08/31/getting-started-with-the-nanovna-part-1/

Looking through some old posts in the forum, I suspect Aursinc is distributing
product from Hugen (since they shipped a very early nanovna-H4).
Though hard to say, many distributors switch between manufacturers depending on
who has stock, and what's cheapest.
There seem to be dozens of Chinese clone shops building nanovna's now.
Some better than others.

Jerry, KE7ER

On Sun, Oct 4, 2020 at 10:35 AM, Jeffrey Reid wrote:
Hello All,

New member here as well as a (soon to be) new owner of a Nano-VNA. I purchased
the Aursinc:
【Upgraded】AURSINC Vector Network Analyzer 10KHz -1.5GHz HF VHF UHF Antenna
Analyzer Measuring S Parameters, Voltage Standing Wave Ratio, Phase, Delay,
Smith Chart(Latest Version REV3.4) <
https://www.amazon.com/%E3%80%90Upgraded%E3%80%91AURSINC-Analyzer-Measuring-Parameters-Standing/dp/B07Z5VY7B6
From our favorite internet site… $69. Plus a couple of adapters.
Like many, I plan on using this to measure built and constructed antennas for
HF. I have watched several youtube videos in anticipation of the device’s
arrival. With this in mind, what files gathered here that should I read to
understand this particular Aursinc device. I understand that this device is
designed in Japan (and built in China). Does anyone know if this is true, if
this device is one of the “originals?”

Thanks in advance,


Re: Old Guy--New User

Larry Rothman
 

Hi Jeff,
Welcome to the forum.
Please read through the forum Wiki for info on the origin and evolution of the Nanovna. You will find a number of links to various user guides and Amateur websites with expanded info on the device. 
Be prepared for a fair amount of reading as there is a lot of info. If you have questions about anything, feel free to ask in the forum. 
Note that there are 3 main groups of the Nanovna models:   The original Nanovna and Nanovna-H - all use Nanovna(H) firmware.The Nanovna-F - uses only Nanovna-F firmware.   The Nanovna-H4 - uses only Nanovna-H4 firmware.  The firmware is not interchangeable. However, you cannot brick the Nanovna, so if you accidentally flash wrong FW, just reflash with the correct one and you're up.
The SAA2 uses an entirely different design and firmware. 
One big item to remember: always make sure your device is calibrated and that calibration is enabled or the readings are meaningless. The user guides, videos and websites detail how to calibrate and perform various measurements.
Lastly, please read the very first link in the Wiki to learn how to search forum content and narrow down to find the info you want. 
CheersLarry


On Sun, 4 Oct 2020 at 1:35 PM, Jeffrey Reid<N6tdg@mail.com> wrote: Hello All,

New member here as well as a (soon to be) new owner of a Nano-VNA.  I purchased the Aursinc:
【Upgraded】AURSINC Vector Network Analyzer 10KHz -1.5GHz HF VHF UHF Antenna Analyzer Measuring S Parameters, Voltage Standing Wave Ratio, Phase, Delay, Smith Chart(Latest Version REV3.4) <https://www.amazon.com/%E3%80%90Upgraded%E3%80%91AURSINC-Analyzer-Measuring-Parameters-Standing/dp/B07Z5VY7B6>  From our favorite internet site…  $69.  Plus a couple of adapters.

Like many, I plan on using this to measure built and constructed antennas for HF.  I have watched several youtube videos in anticipation of the device’s arrival.  With this in mind, what files gathered here that should I read to understand this particular Aursinc device.  I understand that this device is designed in Japan (and built in China).  Does anyone know if this is true, if this device is one of the “originals?”

Thanks in advance,

N6TDG


Old Guy--New User

Jeffrey Reid
 

Hello All,

New member here as well as a (soon to be) new owner of a Nano-VNA. I purchased the Aursinc:
【Upgraded】AURSINC Vector Network Analyzer 10KHz -1.5GHz HF VHF UHF Antenna Analyzer Measuring S Parameters, Voltage Standing Wave Ratio, Phase, Delay, Smith Chart(Latest Version REV3.4) <https://www.amazon.com/%E3%80%90Upgraded%E3%80%91AURSINC-Analyzer-Measuring-Parameters-Standing/dp/B07Z5VY7B6> From our favorite internet site… $69. Plus a couple of adapters.

Like many, I plan on using this to measure built and constructed antennas for HF. I have watched several youtube videos in anticipation of the device’s arrival. With this in mind, what files gathered here that should I read to understand this particular Aursinc device. I understand that this device is designed in Japan (and built in China). Does anyone know if this is true, if this device is one of the “originals?”

Thanks in advance,

N6TDG


Re: nanoVNA Partner #nanovna_partner

hwalker
 

On Sun, Oct 4, 2020 at 07:03 AM, Gyula Molnar wrote:

Herb,
i know the program you recommend was not published by its author, this is when you tend to disable githubos access when someone alleges its existence.
Do you know that differently?

===============================================================
Hi Gyula,
The only info I have is that OneOfEleven recently decided to release her NanoVNA-H firmware branch back to GitHub along with the NanoVNA-App test bed application after moving to a private beta testing channel for a while. I'm not privy to any information beyond that.

- Herb


Re: nanoVNA Partner #nanovna_partner

Gyula Molnar
 

more info here: https://thehackernews.com/2020/08/google-drive-file-versions.html

--
*** If you are not part of the solution, then you are the problem. ( http://ha3hz.hu/ ) ***


Re: nanoVNA Partner #nanovna_partner

Gyula Molnar
 

Hi Bruce,
We are not talking about one. I claim that the program was made by an Indonesian radio amateur as a hobby, which can also be found on a google drive. I read somewhere that it’s not that hard to hack these materials put on the drive, so I can imagine it’s also a hacked version that’s there. That's why I recommended what I had.
If you find a similar problem in this, please let me know, because then I will remove it. For me, Nod32 protects and doesn't signal anything like that.

Herb,
i know the program you recommend was not published by its author, this is when you tend to disable githubos access when someone alleges its existence.
Do you know that differently?

73, Gyula
--
*** If you are not part of the solution, then you are the problem. ( http://ha3hz.hu/ ) ***


Re: nanoVNA Partner #nanovna_partner

hwalker
 

On Sat, Oct 3, 2020 at 05:16 AM, TONY G4WIF wrote:

Regrettably, even Google won't let me download it from Google Drive.
============================================
Tony,
As an alternative to nanoVNA Partner, which has not been actively supported by the author in a while, you might want to try the NanoVNA-App at https://github.com/OneOfEleven/NanoVNA-H/blob/master/Release/NanoVNA-App.exe . OneOfEleven has done a very nice job with this Windows application and it supports the latest DiSlord firmware modifications. Additional features such as a built-in console mode, nice info panel, LC matching, S21 offset correction, and a function to update the NanoVNA firmware from within the application are very appealing.

OneOfEleven has only recently released the application on GitHub after extensive beta testing. The software application was initially intended as a test bed for her open source NanoVNA-H firmware but has developed into a very fine NanoVNA application in its own right. OneOfEleven continues to make frequent improvements to the program.

The program is free for use but is not open source. OneOfEleven retains all rights. It has become my go to application for the NanoVNA-H and NanoVNA-H4. Like nanoVNA Partner, it uses the NanoVNA's internal calibration.

- Herb


locked Re: A public message to Hugen

Dave Daniel
 

Please do not continue to contribute to this thread. This is a provaye matter between OwO and Hugen. Further public discussion of this matter will be shut down quickly.

DaveD (moderator)

On Oct 4, 2020, at 08:52, Dragan Milivojevic <d.milivojevic@gmail.com> wrote:

I/m going to keep repeating this ad nauseam:
This has nothing to do with Open Source.

For those that this fact is non obvious:
Hugens Nano has been cloned for ages now and he
did not publish board files and yet cloners produce
carbon copies of his version.



On Sun, 4 Oct 2020 at 13:02, Peter Ide-Kostic <on7yi.pik973@gmail.com>
wrote:

This is very much understandable and unavoidable given the way the nanovna
v2 story developed.

Going for open hardware makes sense as long as the product gets improved
by people/organisations who copy it so user gets a better experience and
the size of the market also eventually grows.

The V2 is not a copy of the V1, except at the conceptual level, it is a
fresh pcb design resulting in outstanding technical specifications compared
to the V1. The hardware could have been closed but it was kept open with
the hope that the product would be further improved by the community.

Open hardware should be more about colaboration than competition, everybody
should enjoy the ride including of course the original designer of the
product.

Unfortunately it did not happen with the Nanovna v2. I own a genuine model
and two clones so I know what I am talking about. The clones are copy paste
of
the original design: there was no attempt to further improve the dynamic
range or isolation, the sweeping speed, the return loss improvement on
port 2 , the frequency range, etc... .

It was also suggested at some early stage of the V2 saga on some forums
that cloners of the V2 offer the functionality to swap port and 1 and 2 to
ease measurements of the 4 s parameters but it did not happen.

The only benefit for users was a somewhat lower price compared to the
genuine model. On the other hand, the return loss above 1.5 Ghz of port 2
of the two clones that I own is not as good as the one of the genuine
model. Quality control of clones seems to be an issue. One of my two
clones was shipped initially defective by the way... .

The designer of the V2 didn't draw any fruits of his open hardware
strategy, he only faced harsher competition, what happens was just
unavoidable, expecting the hardware to remain open would be unreasonable
very unfortunately. It could have happened differently though.

On Sun, 4 Oct 2020, 07:51 , <aleks07111971@yandex.ru> wrote:

Your words are legally null and void!













Re: nanoVNA Partner #nanovna_partner

BruceN
 

Gyula,
Using the link from Tony, attached are some screenshots I've taken on the .rar archive and the exe file inside. I'd be very hesitant to run this on windows. The screenshots were taken on a linux box so I think I'm safe to at least run them through the analyzer.

BruceN / K4TQL


--
*"To invent, you need a good imagination and a pile of junk"* -- Thomas Alva Edison (1847-1931)


locked Re: A public message to Hugen

Dragan Milivojevic
 

I/m going to keep repeating this ad nauseam:
This has nothing to do with Open Source.

For those that this fact is non obvious:
Hugens Nano has been cloned for ages now and he
did not publish board files and yet cloners produce
carbon copies of his version.



On Sun, 4 Oct 2020 at 13:02, Peter Ide-Kostic <on7yi.pik973@gmail.com>
wrote:

This is very much understandable and unavoidable given the way the nanovna
v2 story developed.

Going for open hardware makes sense as long as the product gets improved
by people/organisations who copy it so user gets a better experience and
the size of the market also eventually grows.

The V2 is not a copy of the V1, except at the conceptual level, it is a
fresh pcb design resulting in outstanding technical specifications compared
to the V1. The hardware could have been closed but it was kept open with
the hope that the product would be further improved by the community.

Open hardware should be more about colaboration than competition, everybody
should enjoy the ride including of course the original designer of the
product.

Unfortunately it did not happen with the Nanovna v2. I own a genuine model
and two clones so I know what I am talking about. The clones are copy paste
of
the original design: there was no attempt to further improve the dynamic
range or isolation, the sweeping speed, the return loss improvement on
port 2 , the frequency range, etc... .

It was also suggested at some early stage of the V2 saga on some forums
that cloners of the V2 offer the functionality to swap port and 1 and 2 to
ease measurements of the 4 s parameters but it did not happen.

The only benefit for users was a somewhat lower price compared to the
genuine model. On the other hand, the return loss above 1.5 Ghz of port 2
of the two clones that I own is not as good as the one of the genuine
model. Quality control of clones seems to be an issue. One of my two
clones was shipped initially defective by the way... .

The designer of the V2 didn't draw any fruits of his open hardware
strategy, he only faced harsher competition, what happens was just
unavoidable, expecting the hardware to remain open would be unreasonable
very unfortunately. It could have happened differently though.

On Sun, 4 Oct 2020, 07:51 , <aleks07111971@yandex.ru> wrote:

Your words are legally null and void!










locked Re: A public message to Hugen

Peter Ide-Kostic <on7yi.pik973@...>
 

This is very much understandable and unavoidable given the way the nanovna
v2 story developed.

Going for open hardware makes sense as long as the product gets improved
by people/organisations who copy it so user gets a better experience and
the size of the market also eventually grows.

The V2 is not a copy of the V1, except at the conceptual level, it is a
fresh pcb design resulting in outstanding technical specifications compared
to the V1. The hardware could have been closed but it was kept open with
the hope that the product would be further improved by the community.

Open hardware should be more about colaboration than competition, everybody
should enjoy the ride including of course the original designer of the
product.

Unfortunately it did not happen with the Nanovna v2. I own a genuine model
and two clones so I know what I am talking about. The clones are copy paste
of
the original design: there was no attempt to further improve the dynamic
range or isolation, the sweeping speed, the return loss improvement on
port 2 , the frequency range, etc... .

It was also suggested at some early stage of the V2 saga on some forums
that cloners of the V2 offer the functionality to swap port and 1 and 2 to
ease measurements of the 4 s parameters but it did not happen.

The only benefit for users was a somewhat lower price compared to the
genuine model. On the other hand, the return loss above 1.5 Ghz of port 2
of the two clones that I own is not as good as the one of the genuine
model. Quality control of clones seems to be an issue. One of my two
clones was shipped initially defective by the way... .

The designer of the V2 didn't draw any fruits of his open hardware
strategy, he only faced harsher competition, what happens was just
unavoidable, expecting the hardware to remain open would be unreasonable
very unfortunately. It could have happened differently though.

On Sun, 4 Oct 2020, 07:51 , <aleks07111971@yandex.ru> wrote:

Your words are legally null and void!






Re: nanoVNA Partner #nanovna_partner

Gyula Molnar
 

To the best of my knowledge, neb (who made the program) tried programming as a hobby.
I have no more knowledge of the author, I tested this program a lot in terms of usability in the early stages. I hope you will show up neb and clear up any misunderstandings.
Thanks to everyone who took part in the testing or gave some feedback on its usability.
According to feedback, windows XP can be used from windows 10.

Gyula
--
*** If you are not part of the solution, then you are the problem. ( http://ha3hz.hu/ ) ***


locked Re: A public message to Hugen

Stephen Laurence
 

Dear Gabriel,

I am sorry to hear your announcement.

The whole nanovna movement has transformed my participation in radio and electronics, which has spanned 60 years. I would never have experimented with any of the more traditional “ home” vnas.

I have been so taken by the device concept that I currently own four altogether (one original nano and the three main V2 devices. I opened one up yesterday to investigate installing emi absorber, and was amazed again at the PHYSICAL creation of the core board.

The 6ghz device is probably no-go for me as it is a bit big (physically) for the pocket and needs a computer. Also I have little need for 6ghz.

I wish your team well, and hope your future devices are sucessful and not tooooo expensive.

Steve L. G7PSZ


Re: nanoVNA Partner #nanovna_partner

TONY G4WIF
 

Thanks for that link Christian. It is appreciated because you can test it before even downloading with https://www.virustotal.com
.. and with more than one anti-virus engine.

It's something useful to try - especially when even Google reports it unsafe to download from its own Google Drive.

- Tony


locked Re: A public message to Hugen

aleks07111971@...
 

Your words are legally null and void!


locked A public message to Hugen

OwO
 

Hello, on behalf of the NanoVNA V2 hardware design team we have to announce that from today on we can no longer permit you to use our hardware design. To avoid giving you unnecessary trouble we will allow you to continue to sell off your existing inventory, but we ask that you cease production of any hardware that uses our PCB layout design from today on.

I understand that this notice is not legally binding because PCB layouts are not covered by copyright. However, we believe that vendors who use our design work and profit from it should respect the wishes of the original developers. We generally permit all vendors to use our design without any royalties, and only very rarely under extenuating circumstances would we rescind permission. However, the events in the past few months forces us to make this difficult decision. You are always free to develop your own layout design from scratch, or to partner with other engineers to develop alternative designs.

Thank you and best of luck with your 6GHz VNA efforts.

(for anyone else reading this, the backstory is here: https://groups.io/g/NanoVNAV2/message/30)

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