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

Note: this page is a mirror of https://groups.io/g/NanoVNAV2.
Click here to join and see most recent posts.

SV-4401A VNA


Bernie 2022/11/12 16:23

Hello Group:
I have been reading all the posts and comments about the NANO VNA and the clone problems.  I did try the NANO VNA V2 PLUS4 but the 4 inch screen
did my old eyes in and that is why I'm leaning toward the SV-4401A with the 7 inch screen and the "N" connectors.  Does anyone have first hand knowledge
they would like to share about this product.  The You Tube video does discuss operation but only as an instruction.  I would like comments from a actual
users prospective. As example, is it a V2 PLUS4 in a new box or is it an older design in a new box ?
You can reach me here or on the email shown on QRZ for Bernie/W4EDX.  Thank you again.

Vladimir Lebedev 2022/11/13 02:58

Hallo Bernie!
Link http://www.sysjoint.com/en ( http://www.sysjoint.com/en )
Best regards
Vladimir. dl7pga

David J Taylor 2022/11/13 14:34

On 13/11/2022 00:23, Bernie wrote:
> Hello Group:
> I have been reading all the posts and comments about the NANO VNA and the clone
> problems.  I did try the NANO VNA V2 PLUS4 but the 4 inch screen
> did my old eyes in and that is why I'm leaning toward the SV-4401A with the 7
> inch screen and the "N" connectors.  Does anyone have first hand knowledge
> they would like to share about this product.  The You Tube video does discuss
> operation but only as an instruction.  I would like comments from a actual
> users prospective. As example, is it a V2 PLUS4 in a new box or is it an older
> design in a new box ?
> You can reach me here or on the email shown on QRZ for Bernie/W4EDX.  Thank you
> again.

I bought one of these, but sent it back. The (UK) supplier didn't even refund
my full payment, claiming missing parts and a broken scree - as if I would have
sent it back in that condition!

- various things didn't work, like something as basic as setting the clock.

- the firmware/software appeared to be a year or more behind that for other
devices. Many missing functions.

- it's very big and bulky.

- it actually has SMA connectors (which I would prefer) but it had adapters
inside from SMA to the external N. So for my use it meant SMA-N-N-SMA. What a
mess!

I was disappointed as the large screen also appealed to me, but I'm £100 short
now, so I can't find a lot to say in its favour. If it worked I might have
kept it.

Cheers,
David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@blueyonder.co.uk
Twitter: @gm8arv

W0LEV 2022/11/13 17:21

Pretty pricey! .......

Dave - WØLEV

On Sun, Nov 13, 2022 at 10:50 AM Bernie <BGW210@currently.com> wrote:

> Hello Group:
> I have been reading all the posts and comments about the NANO VNA and the
> clone problems. I did try the NANO VNA V2 PLUS4 but the 4 inch screen
> did my old eyes in and that is why I'm leaning toward the SV-4401A with
> the 7 inch screen and the "N" connectors. Does anyone have first hand
> knowledge
> they would like to share about this product. The You Tube video does
> discuss operation but only as an instruction. I would like comments from a
> actual
> users prospective. As example, is it a V2 PLUS4 in a new box or is it an
> older design in a new box ?
> You can reach me here or on the email shown on QRZ for Bernie/W4EDX.
> Thank you again.
>
>
>

--
*Dave - WØLEV*
*Just Let Darwin Work*

Roger DL2YDP 2022/11/14 03:14

I have a Nano VNA plus 4 and a SV-4401A VNA. I have compared both devices and will keep both devices!
I mostly use the SV-4401A VNA in the shack and the Nano-VNA plus 4 outside for antenna construction or when I'm on the go.
The ease of use speaks clearly for the SV-4401A VNA and there is also current firmware 0.2.4

Bernie 2022/11/14 06:39

I now have something to think about before purchase.  Yes it is pricey but I could justify that if it was fully operational (maybe).  David has
some user info that also helps, seems they have some clean-up to do along with some Quality issues.  Being in Reliability and QA for many
years I can appreciate those inputs.  And Roger is a user without any issues.  Thank you to everyone for their inputs.  I believe I will wait
a bit longer before I make the purchase and see if others users have any input.
Thank you again and 73's. Bernie/W4EDX

Danny K5CG 2022/11/15 09:13

The only thing that would make me buy this device would be higher dynamic range than my NanoVNA V2. Then I could use it for other things the V2 can't handle. But alas, about the same.

To reply to this topic, join https://groups.io/g/NanoVNAV2

View this thread on groups.io