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.

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SAA2 ojisan firmware and nanovna saver problem

pe2kxh 2020/10/07 14:15


I have the SAA2 3 Ghz vna [ bare pcb version with sma connectors] with a 4
inch display and use the latest greatest OJIsan firmware.
I want to save on my pc measurements with the nanosaver software because it
has more possibilities then the QT software.

It is for me impossible to connect the saa2 to this software, to QT it is
no problem.

Is this normal or has anyone experienced the same effect.

PC runs on win 10.

regards, jac pe1kxh

Siegfried Jackstien 2020/10/07 12:55

from 10 tests it worked 3 or 4 times ... so yes there seems to be a tiny

sometimes it works ... but most times it does not (software closes down
and cause it does it fast i can not read the error message at the end)

but i tried something here ... in nano saver next to "connect to device"
you will find a button "manage" .. i switched off "validate data" and
now connect to device works 10/10 ...

so ... when connecting to device there seems to be some incorrect data
that causes the soft to close down (maybe a timing issue?!?)

test was done here with saver 0.3.6

greetz sigi dg9bfc

Am 07.10.2020 um 12:15 schrieb pe2kxh:

pe2kxh 2020/10/07 15:21

Hallo Siegfried

I will have try with validate off

Thanks for testing !!

vielen dank, jac pe1kxh

On Wed, Oct 7, 2020 at 2:58 PM Siegfried Jackstien <> wrote:

Siegfried Jackstien 2020/10/07 13:24

i made another test

with 0.36 i had to switch off validate .. (see other mail)

 just downloaded 0.38 pre release and there the connection problems
seems to be gone ... even with valifate switched ON i could reliably connect

hope that helps

greetz sigi dg9bfc

Am 07.10.2020 um 13:21 schrieb pe2kxh:

Siegfried Jackstien 2020/10/07 13:27

here latest beta (0.38 prerelease)

dg9bfc sigi

Am 07.10.2020 um 12:15 schrieb pe2kxh:

David Bradley 2020/10/07 15:33

I will say this you have to wait a good while till saver software to initiate load up it’s almost like a dos program no installer if it makes sense then connect too vna device

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