Date   

Re: Installing nanovna-saver on a Mac

David A <61david@...>
 

Im with you John ....... I need the idiots guide to find the idiots guide.


Re: V2 and V3 roadmap

Dragan Milivojevic
 

Great news, AFAIK there is no reasonably priced product, in the
amateur/semi profesional market as that
two port 3GHz version so that will place it at the top of the pack.

On Fri, 31 Jul 2020 at 10:53, Gabriel Tenma White <@owo>
wrote:

Here are the designs under way and future plans for VNA hardware
improvements:

- V2-N - this is still 2.8 inch and will replace the V2, and will feature
2x faster sweep (200 points/s) and lower trace noise. It will be ready in 1
month.
- V2-N4 - this one is 4 inch, and will have up to 5x faster sweep (500
points/s). It will be a redesign and won't be simply V2 with a large
display substituted in. Estimated availability in 2 months.

Some of our engineers are now working for another company on a new product
lineup:
- A USB-only 4GHz VNA with fast sweep. ETA 3 months. Pricing is supposed
to beat the V1 NanoVNA.
- A USB-only 6GHz VNA with fast sweep. ETA 3 months. Pricing is supposed
to beat the V2.
- A full two port 3GHz VNA with 100dB dynamic range across the band. I
don't know if this will feature a display.



Re: H4 hardware questions

Dragan Milivojevic
 

That is a sensible position, only people that need the board designs
are the cloners and the people that want to improve upon the design.
Since there were practically no attempts to improve the design by third
parties no harm is done.

We are working on a new hardware revision, named V2-N, that will

increase sweep speed 2x and reduce noise. This time however I've agreed
to a time-limited protection of the design, and will only be releasing
hardware layouts after a set time. It will also be only sold outside of
China for a while to allow for some time before cloners copy it again.


Re: Got my new NanoVNA-H4 today!

Charles Albert
 

I decided to give this a shot on a fresh install of Linux Mint 19.3 (Cinnamon) and made it to step #7.

I got the error:

  % Total    % Received % Xferd  Average Speed   Time    Time Time  Current
                                 Dload  Upload   Total   Spent Left  Speed
100 1840k  100 1840k    0     0   123k      0  0:00:14  0:00:14 --:--:--  109k
Traceback (most recent call last):
  File "<stdin>", line 23677, in <module>
  File "<stdin>", line 198, in main
  File "<stdin>", line 82, in bootstrap
  File "/tmp/tmpxeq7yd42/pip.zip/pip/_internal/cli/main.py", line 10, in <module>
  File "/tmp/tmpxeq7yd42/pip.zip/pip/_internal/cli/autocompletion.py", line 9, in <module>
  File "/tmp/tmpxeq7yd42/pip.zip/pip/_internal/cli/main_parser.py", line 7, in <module>
  File "/tmp/tmpxeq7yd42/pip.zip/pip/_internal/cli/cmdoptions.py", line 18, in <module>
ModuleNotFoundError: No module named 'distutils.util'

I ran through steps 1-6 several times in case I missed something, but I get the same results at step 7.

This looks like something wasn't installed at an earlier step, but I am by no means a Python expert, so I really no clue of where to go from here.

Any help from the real experts out there?

Take Care & 73
de KC6UFM
Charles

On 7/28/20 1:24 AM, Dave_G0WBX via groups.io wrote:
Try the instructions at:-

https://groups.io/g/nanovna-users/files/NanoVNA%20PC%20Software/NanoVNA-Saver/nvna-s-pve-rev-c.pdf

It works 100% on Linux Mint 19.3

73.

Dave G0WBX.


Re: Check out Twitter for additional Nanovna topics!

Chuck Carpenter
 

Lots of interesting stuff there.

Thanks

--
Chuck, W5USJ


Re: Broken Sma #repair #hardware #pcb

alperbulus@...
 

Thank you very much for your generous offer, but im thousand miles away from state.


Re: NanoVNA firmware user interface mod #mods

Igor Jobim
 

I normally use the nanovna with BW = 100 Hz.


Re: NanoVNA firmware user interface mod #mods

OneOfEleven
 

On Fri, Jul 31, 2020 at 08:49 PM, Igor Jobim wrote:
To adjust the duplexer it should be interesting.
You might the reaction is a bit to slow for that, but yes have a play.

It filters in time not frequency, so basically averages the traces with previous traces.


Re: NanoVNA firmware user interface mod #mods

Igor Jobim
 

To adjust the duplexer it should be interesting.


Re: NanoVNA firmware user interface mod #mods

OneOfEleven
 

Integration is only slight in this comparison (145MHz helical filter) because the noise level is fairly low near the noise floor.


Re: NanoVNA firmware user interface mod #mods

OneOfEleven
 

I've just changed the memories slightly in the PC software, they are no longer wiped. I no doubt will alter how they work etc over time. The markers or mouse aren't yet used on the three memories, currently only on the live trace/data.

The Integrator in the firmware was something I sometimes want to use. All it does is integrate (average) the traces over time, it smooths out noise/changes. It has it's uses but normally you have it disabled.


Re: NanoVNA firmware user interface mod #mods

Igor Jobim
 

I forgot to ask.
What exactly does the "INTEGRATOR" do?


Re: NanoVNA firmware user interface mod #mods

Igor Jobim
 

Thank you!
It's working really well!


Re: NanoVNA firmware user interface mod #mods

OneOfEleven
 

On Fri, Jul 31, 2020 at 12:35 PM, Igor Jobim wrote:
In the future comparing S1P and S2P data may be interesting.
Compare data obtained on different dates.
The same for "set memory". I realize that the memory only exists while "scan"
is active. Maybe it's your idea that the "scan" is always active.
Starting a new "scan" the memory is lost.
The option to load s1p and s2p files into the 3 memories is available and also the memories are now kept when you start/stop scans, but they are still currently wiped if you alter any of the frequency settings (just easier to do that - for now).


Re: NanoVNA firmvare, compiled by DiSlord #firmware

Brian Garber
 

Hi DiSlord,

I'm running the v1.0.3 H4 beta and noticed that after a few minutes the VNA freezes when on the version page. Not sure if you've ran across that issue yet.

73, Brian


Re: Broken Sma #repair #hardware #pcb

N8AUM
 

If you live state side I would be more than happy to repair it for you. I did my own PCB repair before retiring and NASA certified to play with soldering irons.
Good luck,
Vidas


Re: V2 and V3 roadmap

Dave_G0WBX
 

I hope you mean 201 and 501 points etc?
=============================================

... (200 points/s) ...
... (500points/s)....

Dave,
I think you confused number of measurement points with sweep speed.

- Herb

------------------------------------------------------------------------

Indeed.

It's too hot here, and my eyes are tired.

Regards.

Dave G8KBV



--
Created on and sent from a Unix like PC running and using free and open source software:


Re: V2 and V3 roadmap

hwalker
 

On Fri, Jul 31, 2020 at 04:59 AM, Dave_G0WBX wrote:

I hope you mean 201 and 501 points etc?
=============================================

... (200 points/s) ...
... (500points/s)....

Dave,
I think you confused number of measurement points with sweep speed.

- Herb


Re: V2 and V3 roadmap

Dave_G0WBX
 

Re:-

- V2-N - this is still 2.8 inch and will replace the V2, and will
feature 2x faster sweep (200 points/s) and lower trace noise. It will be
ready in 1 month.
- V2-N4 - this one is 4 inch, and will have up to 5x faster sweep (500
points/s). It will be a redesign and won't be simply V2 with a large
display substituted in. Estimated availability in 2 months.

------------------------------------------------------------------------

I hope you mean 201 and 501 points etc?

The point "dead centre" is important, plus that's what the big boys do
(HPAK, Anritsu, R&S, Tek etc) for a good reason.   A lot of
test/measurement work is performed using centre frequency and span (per
division.)

It's always good to know that the centre frequency you asked for*, has a
definite measurement point, not interpolated between points. (* +/- RF
source accuracy of course.)

73.

Dave G8KBV

--
Created on and sent from a Unix like PC running and using free and open source software:


Re: Broken Sma #repair #hardware #pcb

Reinier Gerritsen
 

Desoldering is very easy if you use a bismuth solder wire. Chip Quick sells a smd removal kit with flux, bismuth wire and cleaning pads. It has a very low melting point, just flood the soldered pins with this solder. It mixes with the existing solder on the board and keeps it melted for many seconds. Highly recommanded.


Op 31-7-2020 om 09:50 schreef alperbulus@...:

Thank you very much for detail instructions, I didn't realized that metal shield can be removeable , but now I can easily reach to PCB so good soldering job will complete the mission, after that I ll be print one of those SMA supported case .
Thanks again