开云体育

G'day!
New to nanoVNA and new to groups.io, so please bear with me..
got my unit three days ago from Aliexpress. It's white, no lizard logo, no RF shielding, no idea what FW it's running and I get only two traces, blue and yellow.
I've done a fair bit of reading and I'm still very confused. One thing I noticed in my readings is that the 2-trace unit is referred to as "antenna analyser" and has better screen resolution?
I'm not ready to start playing with the different FWs.
Antenna testing is all I want to do at the moment but later I would like to be able to play with filters and other RF (VHF & UHF) things.
I'll keep on reading, but in the meantime could some kind soul point me in the right direction re finding out exactly what I've got?
Thanx & regards,
Luigi M.

Hi Luigi,

welcome to the group. There really is a lot of information and you have to select what you are curious about.
In the group you have access to the Wiki and Files folders, where you can decide whether you are interested in the subject or move on. There are several websites where some information can be found, if you have any further questions, please ask.

Good job!
73, Gyula HA3HZ

On 03.11.2019 07:00, l49mantuano@... wrote:

G'day!
New to nanoVNA and new to groups.io, so please bear with me..
got my unit three days ago from Aliexpress. It's white, no lizard logo, no RF shielding, no idea what FW it's running and I get only two traces, blue and yellow.
I've done a fair bit of reading and I'm still very confused. One thing I noticed in my readings is that the 2-trace unit is referred to as "antenna analyser" and has better screen resolution?
I'm not ready to start playing with the different FWs.
Antenna testing is all I want to do at the moment but later I would like to be able to play with filters and other RF (VHF & UHF) things.
I'll keep on reading, but in the meantime could some kind soul point me in the right direction re finding out exactly what I've got?

What you have will do the job.

However, new firmware offers new features and bugfixes. It is nothing you must have but it is good to have.

Two track firmware does not have higher resolution. It just uses bigger font so text is more readable. but as memory space is limited, space reserved for two traces data is reassigned for big font. Other than that it is the same functionality. And for usual measuring two tracks are enough.

There is actually one firmware clone that keeps four tracks and offers bigger font. It freed memory by removing Chinese font.


--
73,
Pedja YT9TP

Checkout:

Hi Luigi,To determine the version, touch the display to bring up the menu.?Does the menu show Config as the least bottom button?If there is no Config button you most likely have version .0.2.x firmware.?If there is a Config button, press it so it turns green and release.?If one of the other buttons is selected it the menu disappears, you will need to do a touchscreen calibration but first, try to get to the config menu.?In the config menu there should be a Version key.?
Another way to determine the version is through the Console Commands.?The NanoVNA will need to be connected to your PC.?What are you running?? For Windows, install the STM serial drivers located in the files section of the forum. Check the wiki's firmware section on what to install.?You will also need a serial terminal emulator. I use Teraterm. Putty is ok but slightly more involved to config. Since this is a usb device, the speed settings are irrelevant.?
Once in console mode, you will get a CM> prompt.?Enter:? helpThat will show you all the commands. Please refer to the Console Commands document in the files section of the forum.?There are two commands you want...version and infoInfo will show you all the version information in the newer firmware releases.?The version command will show you the basic version number.?
Once you have all that, you can print a copy of the user guide I formatted for clean printing and you're ready to start playing.?
Enjoy!
... Larry


On Sun, 3 Nov 2019 at 1:00 AM, l49mantuano@...<l49mantuano@...> wrote: G'day!
New to nanoVNA and new to groups.io, so please bear with me..
got my unit three days ago from Aliexpress. It's white, no lizard logo, no RF shielding, no idea what FW it's running and I get only two traces, blue and yellow.
I've done a fair bit of reading and I'm still very confused.? One thing I noticed in my readings is that the 2-trace unit is referred to as "antenna analyser" and has better screen resolution?
I'm not ready to start playing with the different FWs.
Antenna testing is all I want to do at the moment but later I would like to be able to play with filters and other RF (VHF & UHF) things.
I'll keep on reading, but in the meantime could some kind soul point me in the right direction re finding out exactly what I've got?
Thanx & regards,
Luigi M.

One thing I noticed in my readings is that the 2-trace unit is referred to as
"antenna analyser"

While limited to 2 traces, your firmware does support that second port,
so is truly a VNA. To find items 'hidden' in touch screen menu, see:


Other introductory material:
/g/nanovna-users/wiki/User-Guides

Thank you Larry and everybody else! There is no Config button. Tomorrow I'll get busy with Console Commands (Putty on my Ubuntu laptop should do the trick) and will go through more of the Wiki and Files stuff.
Thanks again to all for the warm and helpful replies.. I'll keep you informed..
ciao
lm

Ok, now that I know you're running Linux, please read the wiki notes on device access if you're going to flash new FW. A number of forum members here are also running *nix boxes so if you run into issues...ask.?
Cheers
Larry



On Sun, 3 Nov 2019 at 6:50 AM, l49mantuano@...<l49mantuano@...> wrote: Thank you Larry and everybody else!? There is no Config button. Tomorrow I'll get busy with Console Commands (Putty on my Ubuntu laptop should do the trick) and will go through more of the Wiki and Files stuff.
Thanks again to all for the warm and helpful replies.. I'll keep you informed..
ciao
lm

Tomorrow I'll get busy with Console Commands
(Putty on my Ubuntu laptop should do the trick)
and will go through more of the Wiki and Files stuff.

PuTTY works, but if your Ubuntu already has Python,
then this script enables interacting directly from bash:


.. after edits for your path and serial port.

By adding to your ~/bash_profile:
ch ()
{
python /path/to/nVcmd.py "$*"
}

Then you can invoke, e.g.:
$ ch help
Commands: help exit info threads version reset freq offset time dac saveconfig clearconfig data dump frequencies port stat gain power sample scan scanraw sweep test touchcal touchtest pause resume cal save recall trace marker edelay capture vbat transform threshold color vbat_offset
$ ch trace
0 LOGMAG CH0 10.000000000 8.000000000
1 LOGMAG CH1 12.000000000 8.000000000
2 SMITH CH0 1.000000000 0.000000000
$ ch marker
1 50 57000
$ ch frequencies > freq
$ ch data 0 | paste freq - > my.s1p