Beware of cheap underperforming clones

As of 2023 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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NanoVNA-H2

Duncan 2023/04/12 10:00

Does anyone know how high the H2 can reliably go, I'm testing some antennas for Inmarsat and iridium (1.5GHz and 1.6Ghz)

The VNA lets me calibrate it from 1GHz to 2GHz and I get some interesting traces but not sure if I am just fooling myself.

Thanks

W0LEV 2023/04/12 17:29

With a limited maximum number of frequency points, calibration and use over
1 GHz is questionable. Even if it is supported on SAVER that allows 1000
points, that's a cal. frequency only every 10 MHz.

Dave - WØLEV

On Wed, Apr 12, 2023 at 5:11 PM Duncan <duncan.hislop@gmail.com> wrote:

> Does anyone know how high the H2 can reliably go, I'm testing some
> antennas for Inmarsat and iridium (1.5GHz and 1.6Ghz)
>
> The VNA lets me calibrate it from 1GHz to 2GHz and I get some interesting
> traces but not sure if I am just fooling myself.
>
> Thanks
>
>
>

--

*Dave - WØLEV*

Vladimir Lebedev 2023/04/12 10:55

Hello Duncan!
NanoVNA-H2 exist not!

NanoVNA-H (50khz...1500 mhz, 2.8" display
NanoVNA-H4 (50 khz...1500 mhz, 4" display)
NanoVNA-V2/SAA-2 (50 khz... 3GHz, 2.8")
NanoVNA-V2/SAA-2N (50 khz...3 ghz, 4")
NanoVNA-V2Plus4 and Plus4Pro ( 50 khz...4.4 ghz, 4")

What NanoVNA have You?
Best regards
Vladimir

Duncan 2023/04/13 01:27

Hello it is the -H version, I wanted something else from Aliexpress but this one arrived.  They said I'd have to order again so I decided to keep it.  It is great for lower frequencies but my current fascination is for L band satellites.

Jim Lux 2023/04/13 05:34

On 4/12/23 10:29 AM, W0LEV wrote:
> With a limited maximum number of frequency points, calibration and use
> over 1 GHz is questionable.  Even if it is supported on SAVER that
> allows 1000 points, that's a cal. frequency only every 10 MHz.
>
> Dave - WØLEV

The issue might be SNR - I don't know how number of points would make a
big difference. You'd calibrate over the range of interest. Say
you're doing a GPS antenna at 1575 MHz, you might calibrate from
1500-1650 (a range of 150 MHz). The sticky part would be if one of the
harmonic switches occurs in the range of interest.

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