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Sysjoint SV4401A nanoVNA


 

So i bought one of these on Amazon (SV4401A). They're $150 less on Ali
Express, but i don't entirely trust Ali Express -- i've been burned twice
by them. The last "burn" was $24 worth of fake coax. Not worth returning.

Anyway, this SV4401A is great and does what it's supposed to do. BUT there
are spelling errors on the main screen, unbelievable.

On the main screen, bottom right, there is a 'button' labelled
RUNING instead of RUNNING. There was another typo as well, but i can't find
it at the moment.

I guess that can be fixed with a firmware update.

Best 73
Orrin WN1Z


 

No, you may have gotten a clone. Try NanoVNA.com Good Luck.
________________________________
From: [email protected] <[email protected]> on behalf of Orrin Winton via groups.io <orrin.winton@...>
Sent: Wednesday, March 5, 2025 8:17 PM
To: [email protected] <[email protected]>; Orrin Winton <orrin.winton@...>
Subject: [nanovna-users] Sysjoint SV4401A nanoVNA

So i bought one of these on Amazon (SV4401A). They're $150 less on Ali
Express, but i don't entirely trust Ali Express -- i've been burned twice
by them. The last "burn" was $24 worth of fake coax. Not worth returning.

Anyway, this SV4401A is great and does what it's supposed to do. BUT there
are spelling errors on the main screen, unbelievable.

On the main screen, bottom right, there is a 'button' labelled
RUNING instead of RUNNING. There was another typo as well, but i can't find
it at the moment.

I guess that can be fixed with a firmware update.

Best 73
Orrin WN1Z


 

Completely different animal from the NanoVNA group


 

I appreciate any comments.

I go to nanovna.com, it suggests:

For platforms such as Amazon or AliExpress, please buy directly through the
store provided by the link. Other advertising links on the platform may
sell bad clones.

Amazon
AURSINC <>




So i go to the Aursinc store on Amazon with that link, and the exact
AURSINC/Sysjoint SV4401A that i bought is there in the Aursinc store. The
name Sysjoint seems to go along with the name Aursinc in several places i
look on the web.


The Chelegance site mentioned above (in this thread) only mentions a
SV4401A latest firmware of 0.4.0 but my device boots up as 0.5.9.

The Chelegance wiki page, for desktop software, lists nanoVNA Saver 0.3.12,
so i downloaded that.

My SV4401A causes nanoVNA Saver versions 0.3.12, 0.5.4, and 0.6.8 to either
fail to load or crash once connected. My F-V2 can connect to all 3 versions.


Without some advice, i am not sure how to proceed. ... I wrote down the
firmware version and serial number that my SV4401A gives on boot-up.


Best 73

Orrin WN1Z




El mié, 5 mar 2025 a la(s) 7:14?p.m., PT via groups.io (paultwa00=
[email protected]) escribió:

Completely different animal from the NanoVNA group








 

As a P.S. to my last comment (below), from a search i found a reference to
yet another version of nanoVNA Saver (0.7.3). On one PC, the SV4401A would
not connect (or would crash) just as in the other versions of nanoVNA
Saver. Then i found a comment by a user, that switching to another PC
solved that problem.

So, on my 2nd Win10 laptop, the SV4401A connects to nanoVNA Saver 0.7.3 and
appears to be working correctly.
I did not go back and see if the SV4401A will connect to pre-0.7.3 on the
2nd laptop.

So please, i'd like to hear why the SV4401A is a "completely different
animal from the nanoVNA group." Thank you for any comments.
There's still the issue of the home screen on the VNA misspelling the word
"running" as "runing." If this proves the unit is a fake, i am still
within the return window on amazon.

Thanks
Orrin WN1Z


El mié, 5 mar 2025 a la(s) 8:51?p.m., Orrin Winton via groups.io
(orrin.winton@...) escribió:

I appreciate any comments.

I go to nanovna.com, it suggests:

For platforms such as Amazon or AliExpress, please buy directly through the
store provided by the link. Other advertising links on the platform may
sell bad clones.

Amazon
AURSINC <>




So i go to the Aursinc store on Amazon with that link, and the exact
AURSINC/Sysjoint SV4401A that i bought is there in the Aursinc store. The
name Sysjoint seems to go along with the name Aursinc in several places i
look on the web.


The Chelegance site mentioned above (in this thread) only mentions a
SV4401A latest firmware of 0.4.0 but my device boots up as 0.5.9.

The Chelegance wiki page, for desktop software, lists nanoVNA Saver 0.3.12,
so i downloaded that.

My SV4401A causes nanoVNA Saver versions 0.3.12, 0.5.4, and 0.6.8 to either
fail to load or crash once connected. My F-V2 can connect to all 3
versions.


Without some advice, i am not sure how to proceed. ... I wrote down the
firmware version and serial number that my SV4401A gives on boot-up.


Best 73

Orrin WN1Z




El mié, 5 mar 2025 a la(s) 7:14?p.m., PT via groups.io (paultwa00=
[email protected]) escribió:

Completely different animal from the NanoVNA group












 

Hello,
There is a groups.io group you need to go to.
SV4401A:



It is the correct group for your version of a NanoVNA.
It is a different design than most of the NanoVNAs discussed in this group.
Hope this helps

Clyde KC7BJE


 

Clyde, thanks for that info. The SV4401A group. Just what i need.

Best 73
Orrin WN1Z


El jue, 6 mar 2025 a la(s) 9:59?a.m., Clyde Lambert via groups.io
(clyde.lambert@...) escribió:

Hello,
There is a groups.io group you need to go to.
SV4401A:



It is the correct group for your version of a NanoVNA.
It is a different design than most of the NanoVNAs discussed in this group.
Hope this helps

Clyde KC7BJE






 

Orrin

This post mentions that "firmware of SV4401A is encrypted, we have not found a cloned SV4401A so far on the market"


Mine also is firmware 0.5.9, which is the latest over at: [email protected], in the files section.

I also have the "Runing" typo, so I suspect we are OK and don't have a clone.

Regards
Phil
VK2KKZ


 

VK2KKZ de WN1Z

Phil, that's good news, a clone is unlikely. The 'RUNING' typo is also
visible on the Sysjoint SV4401A io.groups announcement of 0.5.9 firmware.

I posted over there that i found nanoVNA Saver 0.7.3 that works with the
SV4401A. But it only works on *one* of my Win10 machines, not the other.
That could be a problem with my PC.


Is there a better PC software available, than the 0.7.3 ?
73 Orrin WN1Z



El jue, 6 mar 2025 a la(s) 4:30?p.m., Phil Taylor via groups.io (philbyt1=
[email protected]) escribió:

Orrin

This post mentions that "firmware of SV4401A is encrypted, we have not
found a cloned SV4401A so far on the market"


Mine also is firmware 0.5.9, which is the latest over at:
[email protected], in the files section.

I also have the "Runing" typo, so I suspect we are OK and don't have a
clone.

Regards
Phil
VK2KKZ






 

Orrin

0.7.3 appears to be the latest, released last week


Is working ok on both my win 10 and win 11 machines

Good luck.


Cheers
Phil
VK2KKZ