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NanoVNA V2 Plus4 - Pointing UHF Antenna


DavidC KD4E 2021/07/05 17:18

Could I use my just-acquired NanoVNA V2 Plus4 to aim a small UHF antenna?

Can it measure the received signal on 856MHz and indicate signal strength?

Thanks,

David KD4E

David Eckhardt 2021/07/05 15:23

You really want to use a spectrum analyzer, not the VNA. Check out the
Tiny SA at:

h
<https://us-browse.startpage.com/av/proxy?ep=546c63454a31304f65774958425455584f52514d645663454e5138534e554a4b4933784d44466b59526834464c7749524a306b574544356265446f4d6451344e4e5270664a314566426a7361653051654f467349494239574a51464f4132684f666867644d46774e64526c5564774e66466970444279687a6553513446414976416959444c793562655467504d79354b4d67746664564642566d68494b5234614e7739646542395864465161566a3149656b6b614d6c4a6263454e5164565a66466a45624a786b58546755434a4630534e52524555773d3d&ek=4p57707351587469526q6435596p6p2o536r7771&ekdata=697e0351d53189f91f9643bd7e2bba1d>
ttps://tinysa.org/ <https://tinysa.org/>

The VNA is designed to measure complex impedances, pass and/or reject
properties, and many other parameters of various networks. It is not
suited for aiming antennas and measuring signal strengths. That is the job
of a spectrum analyzer or calibrated receiver.

Dave - WØLEV

On Mon, Jul 5, 2021 at 3:18 PM DavidC KD4E <qrv@kd4e.com> wrote:

> Could I use my just-acquired NanoVNA V2 Plus4 to aim a small UHF antenna?
>
> Can it measure the received signal on 856MHz and indicate signal strength?
>
> Thanks,
>
> David KD4E
>
>
>
>
>
>
>

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

DavidC KD4E 2021/07/05 19:24

I wonder if there's an app that will let me use my RTL-SDR for this purpose?

I love new toys but keeping them organized, batteries removed when not
in use,

or charged for when I need them, gets complicated as they multiply ...

If not then I'll go this way. Sure sounds like a cool little tool ...

Thanks!


On 7/5/21 5:23 PM, David Eckhardt wrote:

David Eckhardt 2021/07/05 17:41

The AirSpy receivers, the R2, (a bit less than $200) offers quite a capable
spectrum analyzer application; SpectrumSpy. It is included free with the
download of SDR#. Min sweep is 10 MHz, max is 1.8 GHz. Coverage is from
roughly 25 MHz through 1.8 GHz. The SDRPlay line of receivers also offers
a rudimentary SA, but nowhere near as capable as the AirSpy products.

Dave - WØLEV

On Mon, Jul 5, 2021 at 5:25 PM DavidC KD4E <qrv@kd4e.com> wrote:

> I wonder if there's an app that will let me use my RTL-SDR for this
> purpose?
>
> I love new toys but keeping them organized, batteries removed when not in
> use,
>
> or charged for when I need them, gets complicated as they multiply ...
>
> If not then I'll go this way. Sure sounds like a cool little tool ...
>
> Thanks!
>
>
> On 7/5/21 5:23 PM, David Eckhardt wrote:
>
> You really want to use a spectrum analyzer, not the VNA. Check out the
> Tiny SA at:
>
> h
> <https://us-browse.startpage.com/av/proxy?ep=546c63454a31304f65774958425455584f52514d645663454e5138534e554a4b4933784d44466b59526834464c7749524a306b574544356265446f4d6451344e4e5270664a314566426a7361653051654f467349494239574a51464f4132684f666867644d46774e64526c5564774e66466970444279687a6553513446414976416959444c793562655467504d79354b4d67746664564642566d68494b5234614e7739646542395864465161566a3149656b6b614d6c4a6263454e5164565a66466a45624a786b58546755434a4630534e52524555773d3d&ek=4p57707351587469526q6435596p6p2o536r7771&ekdata=697e0351d53189f91f9643bd7e2bba1d>
> ttps://tinysa.org/ <https://tinysa.org/>
>
> The VNA is designed to measure complex impedances, pass and/or reject
> properties, and many other parameters of various networks. It is not
> suited for aiming antennas and measuring signal strengths. That is the job
> of a spectrum analyzer or calibrated receiver.
>
> Dave - WØLEV
>
> On Mon, Jul 5, 2021 at 3:18 PM DavidC KD4E <qrv@kd4e.com> wrote:
>
>> Could I use my just-acquired NanoVNA V2 Plus4 to aim a small UHF antenna?
>>
>> Can it measure the received signal on 856MHz and indicate signal strength?
>>
>> Thanks,
>>
>> David KD4E
>
>
>
>

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

Siegfried Jackstien 2021/07/06 02:34

touchstone software from nuts about nets ... works also with an rtl dongle

http://nutsaboutnets-downloads.s3.amazonaws.com/Touchstone_Setup.exe

it is manly built for the rf explorer(s) ... but works superb with an
rtl dongle too :-)

or ... use a pluto with satsagen software

Am 06.07.2021 um 01:41 schrieb David Eckhardt:

Siegfried Jackstien 2021/07/06 02:41

no ... but any rtl dongle or similar with several different soft can do
it :-)

dg9bfc sigi

Am 05.07.2021 um 23:18 schrieb DavidC KD4E:

Jim Lux 2021/07/05 17:52

On 7/5/21 4:24 PM, DavidC KD4E wrote:
>
> I wonder if there's an app that will let me use my RTL-SDR for this
> purpose?
>
RTL-SDR will do just fine.

look for "spectrum analyzer rtl-sdr" to find an app with graphics.

The test software (rtl_power) that comes with it will do it with text
into a .csv, but it's a bit tedious for what you want to do.


DavidC KD4E 2021/07/05 21:43

Is this really worth 2x the price or is it just Internet sales hype of a
rebranded device?

https://www.amazon.com/Portable-tinySA-Spectrum-Analyzer-0-1MHZ-960MHz/dp/B093DKVWVV/


On 7/5/21 5:23 PM, David Eckhardt wrote:

DavidC KD4E 2021/07/05 21:49

This looks awesome but only runs natively in a MS version of windows:

https://www.albfer.com/en/2021/01/31/satsagen-0-5/

I don't fuss with the WINE interpreter in Linux.

Hopefully, someone will fully port it to native Linux.

Still looking, but may save hassle and grab a tinySA.

Wouldn't hurt to have both ...

Thanks,

kd4e


On 7/5/21 8:52 PM, Jim Lux wrote:

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