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On 4/23/21 2:28 PM, gnarlodious@... wrote:

/g/nanovna-users/message/5421

THANK YOU, I don't know why that was so hard to find!

Only differences were:
I didn't have to "Change PyQt restriction"
补苍诲…
I had to specify my exact Python version:
python3.9 -m pip install .

Ah, this might be a pip vs pip3 thing. I've gotten fouled up in that more than one time.? Sometimes typing "python" at the prompt doesn't necessarily run python3, for instance. On my machine it does, now, but in the past "python" ran 2.7, "python3" ran 3.8

(base) :nanovna-saver jimlux$ which python
/Users/jimlux/opt/anaconda3/bin/python
(base) :nanovna-saver jimlux$ which python3
/Users/jimlux/opt/anaconda3/bin/python3
(base) :nanovna-saver jimlux$

(base) :nanovna-saver jimlux$ python3 -m pip -V
pip 20.3.3 from /Users/jimlux/opt/anaconda3/lib/python3.8/site-packages/pip (python 3.8)

On 4/23/21 2:28 PM, gnarlodious@... wrote:

/g/nanovna-users/message/5421

THANK YOU, I don't know why that was so hard to find!

Only differences were:
I didn't have to "Change PyQt restriction"
补苍诲…
I had to specify my exact Python version:
python3.9 -m pip install .

But it is running on Big Sur.

Now if I could only figure out how to use it! So far no data shows up on the graphics.

Did you "connect to device" (and does your device show up in the pulldown? (I'm not connected, so mine isn't showing).
Until you do that, nothing will happen.

Then click "Sweep" in the upper left subwindow, and new data should appear in the plots.

/g/nanovna-users/message/5421

THANK YOU, I don't know why that was so hard to find!

Only differences were:
I didn't have to "Change PyQt restriction"
补苍诲…
I had to specify my exact Python version:
python3.9 -m pip install .

But it is running on Big Sur.

Now if I could only figure out how to use it! So far no data shows up on the graphics.

try /g/nanovna-users/wiki - NanoVNA-Saver can be installed on different operating systems.
Scroll your mouse to Software - NanoVNA-Saver.
eg here: /g/nanovna-users/message/5421 or
here or
here /g/nanovna-users/files/NanoVNA%20PC%20Software/NanoVNA-Saver/nvna-s-pve-rev-d.pdf
Yes the PyQt5 version is sensitive. 5.13 or 5.14 will be good.

73, Gyula HA3HZ
--
*** If you are not part of the solution, then you are the problem. ( ) ***

On 4/22/21 7:19 AM, gnarlodious@... wrote:

Hello, glad to be here. Can the NanoVNA-saver be installed and run on MacOS 11.2.3 Big Sur? I tried but it quits with "Segmentation fault: 11".

Or else can I run it on Raspberry Pi 4b? Preferably in Python3.8 which I have installed. Truth be told, I have tried for 3 days but did not succeed in getting it installed. The obstacle is PyQt5.

Thanks for any advice.

-- K5ZN

I've not tried it on Big Sur, but it certainly works on Catalina.
Python 3.8.6 | packaged by conda-forge | (default, Oct? 7 2020, 18:42:56)
[Clang 10.0.1 ] on darwin

I use Anaconda to get python and all the packages installed (including pyqt, which matplotlib uses)


I've also run it on a Pi (a 3 or 4) or a beaglebone green, but I don't recall which. I'll take a look later. I can't remember how I got pyqt installed (apt-get probably), and lately, I've been using tkinter, so I'm not sure it's up to date.

Hello, glad to be here. Can the NanoVNA-saver be installed and run on MacOS 11.2.3 Big Sur? I tried but it quits with "Segmentation fault: 11".

Or else can I run it on Raspberry Pi 4b? Preferably in Python3.8 which I have installed. Truth be told, I have tried for 3 days but did not succeed in getting it installed. The obstacle is PyQt5.

Thanks for any advice.

-- K5ZN

Colleagues, thank you very much!
Great community feedback!
Take care!
73!

On 22. 04. 21 15:28, Jim Lux wrote:

I've been using NanoVNA-Saver (the python app) to run the nanoVNA, since
I want denser spacing of points (i.e. 2000 points from 1-50 MHz).? And,
then, I want to dembed the feed line from the antenna measurement
(essentially running the calibration plane to the end of a 30m cable).?
I've attached an example of two antennas measured that way.

Ultimately, I'm interested in measuring the mutual Z between the
antennas (which are about 5m apart)

I'm not familiar with the NanoVNA-Saver application.

I would do what you are describing by performing the S, O, L calibration
procedure on the end of your antenna feedline. Follow the usual
instructions for calibrating nanoVNA, but connect the calibration
standards on the end of the feedline instead of the connectors on the
nanoVNA. This way the calibration will remove the effect of the feedline
from the measurement.

With plain nanoVNA firmware this can be done through the on-screen
calibration menu. I'm sure you can do the same thing through the
NanoVNA-Saver.

Best regards
Toma?

On 4/22/21 2:10 AM, tomaz.solc via groups.io wrote:

Hi

I've been using scikit-rf to implement calibration for my own home made VNA. More or less what is shown in this example in the docs works for me:



I never used it with nanoVNA since its firmware already includes calibration routines. For nanoVNA I just use the calibration menu to calibrate it on whatever point I need to do the measurement.

Best regards
Toma?

I've been using NanoVNA-Saver (the python app) to run the nanoVNA, since I want denser spacing of points (i.e. 2000 points from 1-50 MHz).? And, then, I want to dembed the feed line from the antenna measurement (essentially running the calibration plane to the end of a 30m cable).? I've attached an example of two antennas measured that way.

Ultimately, I'm interested in measuring the mutual Z between the antennas (which are about 5m apart)

Hi

I've been using scikit-rf to implement calibration for my own home made VNA. More or less what is shown in this example in the docs works for me:



I never used it with nanoVNA since its firmware already includes calibration routines. For nanoVNA I just use the calibration menu to calibrate it on whatever point I need to do the measurement.

Best regards
Toma?

On Wed, Apr 21, 2021 at 07:04 AM, Dionisis “Dennis” Drakopoulos wrote:

Thank you all for the help!
Besides NANOVNA use of the generator I have some other projects in my
wishlist. So I am looking for the generator to have a +/-2dB power level
accuracy and +/-1dB stability for up to 500MHz. Power level say -40dBm to 0dBm
max would suffice for ham projects. Furthermore a CW sinusoid carrier would be
great, a clean one as well. All within the radio amateur budget, not looking
for a high end professional lab bench top equipment. For reference keep in
mind RF EXPLORER Combo product.

I suggest the TinySA for your needs. It has a range of -8 to -76 dBm with 1 db steps up to 350 MHz in low frequency output mode. In high output frequency mode it goes from 240 to 960 MHz. with -34 dB to +16 db but in very large steps so you need an external programmable attenuator ( I bought one for $40 USD on eBay). The output is a sine wave and it can do frequency sweeping. You have limited modulation features as well. It's primary function is as a spectrum analyzer and it does a good job at that. Price is around $50 USD which is a bargain.

A new version (with better ESD protection) will be released in early May. You can get express delivery from the manufacturer's store on Ali Express or wait until the distributors get stock.

Roger

Ooops! Forgo the file, sorry.
Doug K6HFK

THe TinySA fits most of those requirements, I have used it to align tube ham radios and I needed to order some 10, 20 and 30db attenuate-rs in order to measure sensitivities i the -103db range.? The TinySA can produce cw, fm and am signals with various levels of modulation and sweep.

--
This email has been checked for viruses by Avast antivirus software.

On 4/21/21 7:04 AM, Dionisis “Dennis” Drakopoulos wrote:

Thank you all for the help!
Besides NANOVNA use of the generator I have some other projects in my wishlist. So I am looking for the generator to have a +/-2dB power level accuracy and +/-1dB stability for up to 500MHz. Power level say -40dBm to 0dBm max would suffice for ham projects. Furthermore a CW sinusoid carrier would be great, a clean one as well. All within the radio amateur budget, not looking for a high end professional lab bench top equipment. For reference keep in mind RF EXPLORER Combo product.

For really inexpensive - I'd look at one of the boards with a SiLabs chip on it I don't know if they go up to 500MHz.

Your accuracy and stability might be a problem for a "simple" device without some sort of leveler - the SiLabs parts have reasonably good PSRR, but ultimately, the output voltage is determined by the supply voltage, and, of course if you want 40dB of adjustment range, that's pretty much driving you to some sort of programmable attenuator.

The other strategy is using one of the many wideband RF systems on a chip - Those have wide range PLLs and I/Q and internal oscillators, as well as attenuators. This is what I assume is inside the RF Explorer in its many forms, something like an AD936x or a Lime Micro chip.? That might actually be the way to go - the LimeSDR Mini will go down to 100kHz and up to 3.8 GHz.? There is software to do simple signal generator with the LimeSDR Mini.

I can't find the signal generator models for sale, but I assume they're in the $150 range just like the spectrum analyzers are.

73 de SV1CDN, Dennis!

Thank you all for the help!
Besides NANOVNA use of the generator I have some other projects in my wishlist. So I am looking for the generator to have a +/-2dB power level accuracy and +/-1dB stability for up to 500MHz. Power level say -40dBm to 0dBm max would suffice for ham projects. Furthermore a CW sinusoid carrier would be great, a clean one as well. All within the radio amateur budget, not looking for a high end professional lab bench top equipment. For reference keep in mind RF EXPLORER Combo product.

73 de SV1CDN, Dennis!

TinySA indeed, yet they don't have a European supplier.

That was odd. My prior email got mangled. Here is the link to the firmware: /g/nanovna-users/files

In there is a link: Dislord's Nanovna -H Firmware

Near the bottom, NanoVNA v1.0.53.rar

73,

Vince N2JRS

At the bottom of every email:

Doug,

where can one find it?

thanks, 73, Stay Safe,

Robin, G8DQX

I've had this NanoVNA-H for two days and upgraded the firmware to 1.0.53 already. This firmware is quite powerful and well designed. However since this version has 'out stripped' 1.0.23 and I couldn't find an update menu scheme, I did one myself for me and anyone that wants it. I can't guarantee 100% but it's close. Message me back with corrections and changes.
Enjoy
Doug K6HFK