开云体育

First results of my windows PC app for the NanoVNA. Nothing really new as other people have already demonstrated similar functionality
I'm reusing the app I build for my own build VNA's so there is a lot of functionality to start with
Its not very fast as I have not yet changed anything in the NanoVNA firmware but it can scan with 100,200, 400 or 1000 points, does calibration in the app
Can export various data formats and does the usual measurements a VNA is supposed to do including TDR
Will let you know when its becomes more stable

The measurement below is of a (not so good) Tee-check, first the screen of the PC app with a one sided output display with 1000 points resolution, then the two sided toutchstone output and then the calculated T-Check showing there is still room for improvement.

Sorry, I missed the higher frequencies in the T-Check graph, here they are

On Tue, 3 Sep 2019 at 13:46, <erik@...> wrote:

First results of my windows PC app for the NanoVNA. Nothing really new as
other people have already demonstrated similar functionality
I'm reusing the app I build for my own build VNA's so there is a lot of
functionality to start with
Its not very fast as I have not yet changed anything in the NanoVNA
firmware but it can scan with 100,200, 400 or 1000 points, does calibration
in the app

Might I suggest, if its not too much troube, to chance them to 101, 201,
401, and ideally 801 and 1601? Those are the numbers used by the very
popular HP 8753 series, that several members of this group, including
myself, have, or at least have access to them. It would make comparison of
Touchstone much easier if they all have the same number of points.

Can export various data formats and does the usual measurements a VNA is

supposed to do including TDR
Will let you know when its becomes more stable

The measurement below is of a (not so good) Tee-check, first the screen of
the PC app with a one sided output display with 1000 points resolution,
then the two sided toutchstone output and then the calculated T-Check
showing there is still room for improvement.

You are always going to be stuffed with decent T-check results unless there
is better support for calibration kits with defined thus.

Dave
--
Dr David Kirkby Ph.D C.Eng MIET
Kirkby Microwave Ltd
Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD,
Essex, CM3 6DT, United Kingdom.
Registered in England and Wales as company number 08914892

Tel 01621-680100 / +44 1621-680100

Hello erik, I am constructing a USB-VNA that can use your software. It includes a USB-HUB, USB Audio Codec and an Arduino-compatible MCU. I think this is a good solution.

hugen

Very nice Eric. Thank you.

On Tue, Sep 3, 2019 at 06:26 AM, <hugen@...> wrote:

Hello erik, I am constructing a USB-VNA that can use your software. It
includes a USB-HUB, USB Audio Codec and an Arduino-compatible MCU. I think
this is a good solution.

hugen

Please have a look at
It has all the functionality you need.
I will update over the coming weeks.
I'm willing to help you test the SW on your new HW

On Tue, Sep 3, 2019 at 06:33 AM, <erik@...> wrote:

On Tue, Sep 3, 2019 at 06:26 AM, <hugen@...> wrote:

Hello erik, I am constructing a USB-VNA that can use your software. It
includes a USB-HUB, USB Audio Codec and an Arduino-compatible MCU. I think
this is a good solution.

hugen

Please have a look at
It has all the functionality you need.
I will update over the coming weeks.
I'm willing to help you test the SW on your new HW

Is Tapr-VNA software for NanoVNA available now?

Yes,

Look in /g/nanovna-users/files/NanoVNA%20PC%20Software/TAPR%20VNA
Don't complain about the manual, it is being adapted but not done yet

Thanks Erik,

Thanks for the great work!

But I am having a problem. I use the serial com port for NanoVNA and select NanoVNA as device in settings.

At first, it doesn't like the serial com port and says nothing connected. After I try a few more times it goes to main screen. When I try a sweep, it says signal levels too low. Played around with many of the other settings to no avail. I'm obviously doing something wrong. But what is it?

Do I need to set com port data rate in Windows device manager?

When I change to NanoSharp program, everything works well.

Hello Erik,
I have exactly the same Problem and it Looks Like the nanovna itself crashes in some way.
I can activate the Touchkeys but the graphs are not refreshed any more.
Greetz
Ton - PA0ARR

Did you install the modified firmware?

Oeps, stupid me.
Something to do...
Greetz
Ton - PA0ARR

On Wed, Sep 11, 2019 at 11:10 AM, <erik@...> wrote:

Did you install the modified firmware?

Erik,

Are you implying that a regular NanoVNA with latest Hugen firmware will not work with this TAPR software?

if so, I'm sorry to hear it. If it would work with Hugen's firmware, even using 101 points, it could still be useful.

Also would be nice to allow using the NanoVNA's internal calibrations, CAL0 ... Cal4. That way, calibrations you made in the field (without PC) could be saved and used on the bench-top.

I understand that this software has many features that depend on the new "scan" command in your firmware, but I mistakenly thought it would be compatible with the Hugens firmware. I guess its back to NanoSharp.

Life with these nanoVNAs is getting complicated. Just saw over on eeVblog that a new NanoVNA V2 is going to be introduced that will go to 2.5 GHz without using harmonics and also use higher frequency mixers. At least it makes life interesting!

I updated the SW so it also works with the original firmware.
Can you test?
/g/nanovna-users/files/NanoVNA%20PC%20Software/TAPR%20VNA/VNAR4.2.zip

Ok Erik,
Starting taprvna
Connect com3 says no vna connection to com3
Second time it connects, sometimes the nano screen turns white and everything hangs, sometimes Connection is ok.
If so, calibration runs fine and I see the nano display jumping through the frequency steps.
Scanning 200khz-200Mhz runs also (frequency steps ok)
But no S11 magnitude graph, Line stays on 0 dB, also S11 SWR graph.
I have connected a endfed longwire antenne for 7, 14, 21 ... MHz. To port CH0
Thanks anyway for your efforts
73 Ton PA0ARR

Did you switch the S11 magnitude on in the menu?

Yes
Scanning hoe from 6 to 8 MHz
View rectangular
Trace S11 magnitude stays 0
Trace S11 Phase graph Looks ok, anyway the same values as the nano.

Ok Erik,
During scanning sometimes a window pops Up with
Error
De indeling van de invoertekenreeks is onjuist.

I have to push [OK] to let the software continue

Are we Both dutch?

Hello Erik,
Found the trick.
I have to check Apply calibration ,
Even with the white nano display taprvna is communicating and displaying the right graphs.
Is there a possibility to ignore the invoertekenreeks error, I think it is an error in communication.
73 Ton PA0ARR

Yes, both dutch, I'm waiting for AT to get my ham licence.
Will implement a fix for the mentioned error. Its probably a .dotnet error. Is you windows language set to Dutch.
Can you take the manual and mark where you see differences with the manual?
Attached a word version of the manual