开云体育

On Wed, Sep 2, 2020 at 07:59 AM, Dragan Milivojevic wrote:

It would be nice if she would answer ...
I sent a message a while back asking why there is no shipping option
for Serbia, when all surrounding countries are supported, and got no reply.
Unless you are using NATO planes (only difference between Serbia and
neighbouring countries)
to deliver packages I see no reason why.

==================================================
Dragan,
I believe you sent your correspondence to Maggie at hugen's on-line store. OwO's official stores are on Taobao and Tindie. This group provides support for all V2 variants so OWO started another group that supports only the original V2 at /g/NanoVNAV2/ . You might ask about shipping to Serbia at that group, especially if you are intending on purchasing the original V2.

-Herb

On Thu, 27 Aug 2020 at 18:50, Jerry Gaffke via groups.io <jgaffke=
[email protected]> wrote:

Interesting plot here showing feed impedance vs height for a center fed
dipole:




Jerry, KE7ER

I wish people would give the source of the information.

The behaviour shown looks quite believable to me. One can show that the
mutual impedance between dipoles follows a similar pattern. The formula is
fairly complicated (more than I would want to put in email), but it
includes either sine or cosine integrals (perhaps both), which shows a
similar behaviour



Note that the mutual impedance has both a real and imaginary part. I would
expect not only the real part of the impedance to show this, but also the
imaginary part.

Dave

--

Dr. David Kirkby,
Kirkby Microwave Ltd,
drkirkby@...

Telephone 01621-680100./ +44 1621 680100

Registered in England & Wales, company number 08914892.
Registered office:
Stokes Hall Lodge, Burnham Rd, Althorne, Chelmsford, Essex, CM3 6DT, United
Kingdom

Forget about resonance, just adjust length for reasonable SWR so power can be coupled to the antenna. Then turn on radio and have fun
Ray
W7LYJ

It would be nice if she would answer ...
I sent a message a while back asking why there is no shipping option
for Serbia, when all surrounding countries are supported, and got no reply.
Unless you are using NATO planes (only difference between Serbia and
neighbouring countries)
to deliver packages I see no reason why.

S-A-A-2 is a new design and not based on the original NanoVNA:

It was open source which means there are many "clones" and variants on the market. Most of the clones perform fine, so you will be well served buying any random one on Aliexpress or Banggood. However if you want to support the original developers, only the stores listed on the above page will do that.

Greetings,
I am new to this group and totally unfamiliar with the nomenclature for the various models of NanoVNA. With that in mind, what, if any, is the difference between NanoVNA (including H4) and SAA2N ?
I have an FA-VA5 and it works fine but there is hardly any activity on their reflector while this group seems to be very active so, here I am.

Thanks,
Mike / W8DN

Thank you! I am already a member. It's not me who started the subject here ?

Hugo,

I suggest you join

/g/NanoVNA-V2

You will find more specific information regarding the SAA2 and their
variants.

Also some reviews about SAA2N.

Cheers,

Luís CT2FZI

A quarta, 2/09/2020, 06:08, Hugo <ve2_ugo@...> escreveu:

Hello they have all been checked and are working as they should be
thanks David

Buyers should always beware.
It would be helpful to the group to know:
- Did you return the unit?
- Did the seller refund your money or replace the unit?
- Would you care to share the name of the seller and their response?

These things would provide value to future purchasers.

On Wed, Sep 2, 2020 at 08:49 PM, Hugo wrote:

Hugen,

Is this your product sold here at Zeenko?

C$ 93.50 | SAA-2N NanoVNA V2 3GHz 2.2 version 3000mAh

Yes, this is Maggie's shop.

Hugen,

Is this your product sold here at Zeenko?

C$ 93.50 | SAA-2N NanoVNA V2 3GHz 2.2 version 3000mAh

Problem in calibration units, cables

Check it better.

Connecting to a laptop makes the microbe stationary, mobility is lost!

Hello after reset all looks good everything in the right place

Please give me a case model for a 4-inch display, no where?

So...

First things first.

Hugen does not sell on Tindie.

One cannot compare nanoVNA-H with SAA2 firmware.

What you said is not 100% correct, and it's user misunderstanding about the
tool itself.

V2 holds calibration and saves it. If you change frequencies either you
recall again calibration or do calibration again.

That is from OwO SW feature. I agree with it up to the point it reminds
user that it's using different calibration for the frequency span.

This feature was discussed already many times.

About the display... I cannot understand who wants to use the display if
nanovna-saver exponentially enhances the usability, including the saving of
infinite calibration scenarios?

;)




A quarta, 2/09/2020, 13:05, <aleks07111971@...> escreveu:

Disable calibration (or reset)

You see noise after? if no - wrong calibration. If yes another problem (possibly hardware)

On Wed, Sep 2, 2020 at 07:51 PM, Aleksander Shalygin wrote:

The V2 version I bought on Tindy from Hugen was disappointing to me.
I will refrain for now to support this "business".
Hugen saw all the problems in the mail from Maggie.

I haven't sold any products on "Tindy"? Are you sure you bought our products?

Hello i am using port 0

I have attached an image you can ee there its going crazy

I have attached a pic of the version

I will need to do some reading if i need to upgrade the version

Nothing was soldered it is as it was delivered

Thanks David