Beware of cheap underperforming clones

As of 2022 there are many badly performing clones on the market. V2/3GHz NanoVNA uses parts like ADF4350 and AD8342 which are costly and clones have been cutting costs by using salvaged or reject parts.

See official store and look for V2 Plus4/V2 Plus4 Pro versions only to avoid getting a bad clone. We have stopped selling V2.2 versions since October 2020, so all V2 hardware that are not Plus or Plus4 are not made by us and we can not guarantee performance.

NanoVNA V2 Forum

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New Information: integration of NanoVNA Saver with the NanoVNA V2Plus4


Dave VE3TLY 2022/06/10 14:00

Hi,

I just received my NanoVNA V2Plus4 and have been exploring its behaviour with the NanoVNA-Saver and NanoVNA-QT software. I've encountered some interesting observations which I have reported to HCXQS as follows:

1. If I flash the NanoVNA V2Plus4 with an older version of firmware, 20211227, then NanoVNA-Saver recognizes the V2Plus4 and runs. This points to a problem with the latest firmware release, 20220301 which appears to corrupt the USB interface, rendering the Saver application unusable with the V2.

2. Unfortunately when I try to capture data using the older firmware, 2021122, the data is corrupted and is not usable. Capturing data using the latest firmware, 20220301 gives good results.

At this time, this leaves me with no alternative other than to use NanoVNA-QT and the current firmware. Obviously I look forward to your NEXT firmware release.

In minutes I received an email response from HCXQS thanking me for my comments and indicating that they will look into the problem. Whether the fix lies with a V2 firmware update or with Saver itself is their decision. In the meantime I will keep an eye open for new updates.

Hope this helps.

73
Dave VE3TLY

Marc Nordquest 2022/06/12 07:19

What I do is connect with NanoVNA-QT and then close the program. Now start
up NavoVNA Saver and connect. Works everytime for me.

On Sat, Jun 11, 2022, 12:31 AM Dave VE3TLY <dave.green@ncf.ca> wrote:

Anne Ranch 2022/06/13 13:45

This  probably will; not help . but ...
ever since PC with serial port came to be
once the serial port is used by ONE application it has to be
released (!) to be free to be used by another application

Sometime closing the original user application is not enough....
if the coder included (!)  the release and closing the app does not run it...

Dave VE3TLY 2022/06/13 14:29

Thanks for the suggestion Marc. I tried that on two different WIN10 machines while using the most recent NanoVNA V2Plus4 firmware (20220301). No luck. I tried several versions of NanoVNA-Saver from Vers. 0.3.7 to Vers. 0.4.0, but got no satisfaction. In all cases, NanoVNA-Saver failed to find any COM ports.

73
Dave VE3TLY

Vladimir Lebedev 2022/06/13 22:57

Hello Dave!
Have You installed Cypress driver for Windows, but Windows 10 install own driver?
Vladimir,  dl7pga

Vladimir Lebedev 2022/06/13 23:01

Dave, this driver
https://nanorfe.com/downloads/NanoVNA-QT/CypressDriverInstaller_1.exe
Without this driver works not.
Vladimir, dl7pga

Dave VE3TLY 2022/06/14 05:57

Thanks Vladimir. Yes I have installed the Cypress drivers and NanoVNA-QT runs correctly. My problem is that NanoVNA-Saver does not find the device, when using the current firmware release 20220301. As I mentioned previously, it does find the device if I flash the previous firmware release 20211227.
--
Dave VE3TLY

gouzou82 2022/06/14 10:00

What i did was to uninstall the cypress drivers and saver could find the device.
I have win10 home 64bit.

Vladimir Lebedev 2022/06/14 13:02

Hello gouzu82!

It is very easy. See this picture - Windows 10 Control Panel ---> Apps & Futures
Sypress driver uninstall only.

Best regards
Vladimir

Dave VE3TLY 2022/06/14 13:22

Thanks. I tried that but it didn't work here. I too have Win10 home 64-bit machines.

BTW I have been communicating with the developers of NanoVNA-Server who are currently working on a fix for this problem. I'll post an announcement, if/when a solution becomes available.
--
Dave VE3TLY

Steve K3FZT 2022/07/10 11:01

On my Windows 10 Pro machine UNinstalling the Cypress driver, including deleting the files from the computer, unplugging the USB cable, rebooting the computer and then both applications load and operate without difficulty so long as one is closed before the other is open.

Thank you, Vladimir Lebedev.
--
73 de K3FZT / Steve

Dave VE3TLY 2022/07/12 17:42

Thanks for the comments Steve. Unfortunately I had no success when I tried your suggestions.

I am running Win10 Home. When I removed the Cypress driver and rebooted as you suggested, the S.A.A.2 could not be found by either NanoVNA application. The fact that your WIN10 machine could find the device is curious. It would be very interesting to know what driver was used in your machine to communicate with the S.A;A.2 (and which versions of the software and firmware were being used.)

The firmware installed in my S.A.A.2 is 20220301.

The version of NanoVNA-Saver I'm running is V0.4.0 that I downloaded on 2022-06-14. HCXQ had notified me that they had just updated the Saver application and asked me to test it. ( https://nanorfe.com/nanovna-v2-software.html#nanovna-saver )  I found with the new version that the S.A.A.2 was now recognized by Saver but the application crashes as soon as I click "Connect". The error report indicates errors in a function call - apparently a different code bug.

As it stands now, QT runs fine, but I much prefer Saver. I will continue to watch for any new code releases.
Thanks again.

73
Dave VE3TLY

Ambro_IW2FVO 2022/07/13 07:11

I recently updated the Firmware of my nano VNA V2_2 black and gold and I have this behavior:
NanoVNA_APP   > good USB connection and operationNanoVNA Saver v 0.3.8 > good USB connection and operationVNA_QT > good USB connection and operationNanoVNA Saver v 0.4.0 (32 or 64 bit)   NO Connection at all:  No port displayed: If you press "connect" then tha program is terminated.
nanoVNA FW: 20201310Win_10 64 bit PRO 8GRAM  SSD :500GB CPU intel I_5 @ 3.2 GHz
Hope this could help.Regards,Ambrogio


On Wednesday, July 13, 2022 at 06:55:31 AM GMT+2, Dave VE3TLY <dave.green@ncf.ca> wrote:

Thanks for the comments Steve. Unfortunately I had no success when I tried your suggestions.

I am running Win10 Home. When I removed the Cypress driver and rebooted as you suggested, the S.A.A.2 could not be found by either NanoVNA application. The fact that your WIN10 machine could find the device is curious. It would be very interesting to know what driver was used in your machine to communicate with the S.A;A.2 (and which versions of the software and firmware were being used.)

The firmware installed in my S.A.A.2 is 20220301.

The version of NanoVNA-Saver I'm running is V0.4.0 that I downloaded on 2022-06-14. HCXQ had notified me that they had just updated the Saver application and asked me to test it. (https://nanorfe.com/nanovna-v2-software.html#nanovna-saver)  I found with the new version that the S.A.A.2 was now recognized by Saver but the application crashes as soon as I click "Connect". The error report indicates errors in a function call - apparently a different code bug.

As it stands now, QT runs fine, but I much prefer Saver. I will continue to watch for any new code releases.
Thanks again.

73
Dave VE3TLY

Vladimir Lebedev 2022/07/13 00:20

Hello Dave!
You can try NanoVNA-APP, here is download link

https://disk.yandex.ru/d/PgLthVAsG90TGg

Unzip and start.
You need Cypress driver. Windows 10 install own driver, unusable.

73 de Vladimir, dl7pga

Albert Kleyn 2022/07/13 01:26

Dave... apologies for butting in here. Why not try to run Joe's wonderful program on your SAA-2 ?   While I have the nano-QT and nano saver programs... Joe's program runs circles around them... but be warned !, it has a learning curve.  It is the nanovna solver64.exe    ( I too have the N type SAA-2 here )
BUT... I HAVE A CONFESSION TO MAKE.  I only got this working because of the great help I received in this forum from several people. Without that help I would still be trying an would have given up LONG AGO !
Don't get me wrong... the QT and Saver programs are great... nothing wrong with them.
I run windows 10 prof on here and do note my VNA will be about 8 months old( from Amazon USA) and I have NEVER touched the firm ware. Too risky i.m.o.
FYI..... for all my main antenna work I use a RIGEXPERT 650 Zoom... ye cannot beat that unit.
Albert   EI7II.

Siegfried Jackstien 2022/07/13 15:26

There is newer fw available for your device

Dg9bfc sigi



Am 13.07.2022 09:11 schrieb "Ambro_IW2FVO via groups.io"
<iw2fvo=yahoo.com@groups.io>:

> I recently updated the Firmware of my nano VNA V2_2 black and gold and I
have this behavior:

>

>
>

>

> NanoVNA_APP > good USB connection and operation

>

> NanoVNA Saver v 0.3.8 > good USB connection and operation

>

> VNA_QT > good USB connection and operation

>

> NanoVNA Saver v 0.4.0 (32 or 64 bit) NO Connection at all: No port
displayed: If you press "connect" then tha program is terminated.

>

>
>

>

> nanoVNA FW: 20201310

>

> Win_10 64 bit PRO 8GRAM SSD :500GB

>

> CPU intel I_5 @ 3.2 GHz

>

>
>

>

> Hope this could help.

>

> Regards,

>

> Ambrogio

>

>
>

>

>
>

>

>
>

>

> On Wednesday, July 13, 2022 at 06:55:31 AM GMT+2, Dave VE3TLY
<dave.green@ncf.ca> wrote:

>

>
>

>

>
>

>

> Thanks for the comments Steve. Unfortunately I had no success when I tried
your suggestions.
>
> I am running Win10 Home. When I removed the Cypress driver and rebooted as
you suggested, the S.A.A.2 could not be found by either NanoVNA application.
The fact that your WIN10 machine could find the device is curious. It would be
very interesting to know what driver was used in your machine to communicate
with the S.A;A.2 (and which versions of the software and firmware were being
used.)
>
> The firmware installed in my S.A.A.2 is 20220301.
>
> The version of NanoVNA-Saver I'm running is V0.4.0 that I downloaded on
2022-06-14. HCXQ had notified me that they had just updated the Saver
application and asked me to test it.
(<https://nanorfe.com/nanovna-v2-software.html#nanovna-saver>) I found with
the new version that the S.A.A.2 was now recognized by Saver but the
application crashes as soon as I click "Connect". The error report indicates
errors in a function call - apparently a different code bug.
>
> As it stands now, QT runs fine, but I much prefer Saver. I will continue to
watch for any new code releases.
> Thanks again.
>
> 73
> Dave VE3TLY
>



_._,_._,_

* * *

Dave VE3TLY 2022/07/13 09:50

Thanks. My S.A.A.2 runs QT and APP correctly but can't run Saver. It's
apparent that different versions of the NanoVNA V2xx behave differently
when interfaced to NanoVNA-Saver. I have also found that my S.A.A.2 will
not operate correctly when I burn the previous version of firmware. My
preference then is to evaluate the latest version of firmware and
applications as they become available.

73
Dave VE3TLY

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