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Sorry, Just got my second NanoVNA. The first one was DOA, back screen light, but no display. Second one seems to work fine at my limited time getting to know it.

A few questions, I am used to working in rectangular coordinates with R and j displayed. I don't use the smith chart, it is a distraction for me.So.
1. what gets you to the rectangular display with R and j?
2. How to get rid of the Smith chart in the background.

I know these are simple things, but I just have not found them in the menus, sorry.
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Mel, K6KBE

I just have not found them in the menus

This should help find things in menus:


.. or this, for newer firmwares:


You could first turn of all traces, then enable one,
then, under DISPLAY, keep trying options until you like one.
Then, back to TRACE, enable another, and repeat.

Hi Mel, good to see you (and your Bauer) on the group.

I just took a look at my NanoVNA (which I've had for a month or two, so it doesn't have the latest firmware), and I don't see any way to display R and X. In fact, I only see R and X as marker annotation when displaying the Smith Chart (and in this case X is not in terms of ohms, but apparently H or F).

But if you don't mind using your NanoVNA with a PC, check out the NanoVNA-Saver application, which runs under windows. (You can download the .EXE file from this page: )

I've attached a screenshot showing a plot of S11 in terms of R and X (it's the top plot of the two). Is this what you are looking for?

Best regards,

- Jeff, k6jca

P.S. It's a very cute little tool. I've added N connectors to mine. Tell Ray 'VAB he should get one, too.

Jeff Anderson wrote: I just took a look at my NanoVNA ... and I don't see any way to display R and X.

Jeff, I'm running edy 0.2.3 and it will display R and X.

Please explain edy 0.2.3 SW Thanks

Mel, K6KBE

Thanks Jeff, near but not quite, It gives the R in terms of ohms, but the X in terms of pF?? Yes I can get there, but it would be nice to see the Mag R in ohms and the X in terms of j like my itger two VNA do.....

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Mel, K6KBE

On Mon, Oct 14, 2019 at 07:40 AM, W5DXP wrote:

Jeff, I'm running edy 0.2.3 and it will display R and X.

Thanks very much, Cecil. I've been too chicken to attempt updating the firmware. Maybe it's time to bite the bullet.

Mel -- edy 0.2.3 is *firmware* that would need to be downloaded onto the NanoVNA platform, itself. I've never attempted it, so I don't know how difficult it is. But take a look at the Wiki section of this group, there are probably instructions.

Also -- you should be able to see X in terms of ohms with NanoVNA-saver. Here's a closer look at a screenshot. You can see that the primary marker readout is in terms of ohms for both R and X, and the plot's 'jX' axis (vertical axis, right-hand side of the top plot) is in terms of ohms.

- Jeff, k6jca

On Mon, Oct 14, 2019 at 08:39 AM, Jeff Anderson wrote:

Here's a closer look at a screenshot....

...and attached is the missing screenshot...

Mel Farrer, K6KBE wrote: Please explain edy 0.2.3 SW

I see it called edy255 and also edy555 so I didn't know which number to post.

OK, but not knowing what that is, did anyone rewrite the manual in English? The words are all english but don't make a whole lot of sense. Reminds me of the days when the off shore boys wrote the operational manuals for ham radios, UGLY.

OK here is where I am. I have a rudimentary knowledge of the NanoVNA and have walked through a lot of the set up. NO where in the manual does it tell you step by step how to get rid of the Smith chart overlay. Next, nothing on interface to the computer NADA. Nor does it tell you how to download new revisions. So call me a newbie and I am with 60 years developing communication and testing products from DC to 40 GHz. To say I am at a loss on this is an understatement. Comments appreciated, GRIN. I need help.
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Mel, K6KBE

That can be a problem with a decentralized project.

Mel, do you want to meet on 80 meters later? I’m at my wife’s place in Nevada City, so I’d think propagation along the foothills ought to be good. Much more efficient to talk through issues rather than type back and forth.

Let me know if this works for you. I’m sometimes on 3663 around 5:15. But pitch a time and frequency that works best for you.

By the way, regarding the serial port...if you plug the included cable into your computer’s USB port and the other end into your NanoVNA, it will look like a device talking through a serial port (I think it defaults to comm port 12)

Anyway...if you have downloaded the NanoVNA-Saver .EXE file...

1. Plug NanoVNA into included cable,
2. Plug other end of included cable into a USB port on your PC.
3. Turn the NanoVNA ON.
4. On your PC, click on the NanoVNA-Saver icon (or filename) to launch it.
5. The app should launch, and down in the left hand corner it should say “COM12” in the “Serial Port” field. (If you don’t see a comm port listed, something g is probably bunged up).
6. Assuming you see a com port listed, click the “Connect to NanoVNA button just below it. (this button will then change to say “Disconnect” if a connection has been established).

You can then use the Sweep button on the upper left to make sweeps.

Anyway — I’d be happy to get on the air, too, if you’d like.

- Jeff

From: Mel Farrer, K6KBE wrote: NO where in the manual does it tell you step by step how to get rid of the Smith chart overlay. Next, nothing on interface to the computer NADA.

If you choose "Display" then "Trace", you will see the four traces are color coded. If you tap on a tracex button and the color goes away, that will turn off the display for that tracex.

Info on PC interface at:

On Mon, 14 Oct 2019 at 17:32, Mel Farrer, K6KBE <farrermesa@...> wrote:

OK, but not knowing what that is, did anyone rewrite the manual in English? The words are all english but don't make a whole lot of sense. Reminds me of the days when the off shore boys wrote the operational manuals for ham radios, UGLY.

Some background might help.
You didn't buy a commercial product with an R&D division, marketing,
and support departments.
You bought one man's hobby project; one that he open sourced.
The Chinese industrial system found it and began producing them -
that's how we ended up with one.

The originator, Tomohiro, has a Github where he released the firmware;
the software that runs on the device itself. Also in that package are
Python programs that allow one to interact with the device from a PC,
Mac, *nix, etc. His 'handle' is 'edy555'. Tomohiro is Japanese;
English is not his first language. A Chinese programmer has been
modifying and enhancing the edy555 firmware; that is 'hugen'. Hugen's
first language is not English. Hugen has released a PC application
that is more polished than the original Python scripts. There are
other PC-side developers as well as people working on the firmware.

We are reaping the benefits of early access to the physical device and
to the firmware that runs on it, and to the software being developed
for the PC. The downside, if one can call it that, is that virtually
all of the work is being done by people for whom English is not their
primary language. In addition, the software changes are very frequent:
people on the list are almost certainly discussing software that
didn't come on your particular device from the factory.

There are two areas in this group that might prove useful for
self-education. The Files section, and the Wiki. Since this is
actually quite early in the life of the NanoVNA, neither resource is
all-encompassing. But several people have been continuously improving
them as time allows. In particular, the Wiki is a resource that any
one of us can edit/enhance - anyone can contribute a note or a brief
writeup that would help the next newcomer...

OK here is where I am. I have a rudimentary knowledge of the NanoVNA and have walked through a lot of the set up. NO where in the manual does it tell you step by step how to get rid of the Smith chart overlay.

The Smith Chart is tied to one of the traces. Turn them all off. On
the NanoVNA, select Trace, then de-select all of the traces. Voila, no
Smith Chart.
Now, turn one trace on at a time. The description of the current
assignment appears in the upper left.
If you'd like to re-assign a visual graph to a specific trace, choose
one of the traces. Note that there are two traces for CH0 and two for
CH1.
Select the trace you'd like to re-assign.
Press Back. You should see the menu with Trace, Format, Scale,
Channel, Transform'.
Press Format. You should see the menu with the various graph types,
'LOGMAG, PHASE, DELAY...'
Press the format you prefer.
You've now assigned your choice of graph to the trace.

Next, nothing on interface to the computer NADA. Nor does it tell you how to download new revisions.

Much of that is in the Wiki and Files section. As I said, we're still
in the early days, so help organising things is welcome. The thumbnail
is that there are several PC-side programs. Look for NanoVNA-Saver.
I'm old fashioned, so I prefer to go direct to the author:


Welcome to the community! I hope some of this was of use.
73 de kc2hiz
--buck

Hi Mel,
The author of the manual (cho45) is a friend of the original designer (edy555) of the NanoVNA and both gents are Japanese. I translated the manual using Google translate and cleared up several areas that didn't sound right but I wanted to keep the context as original as possible.?
It's a big manual and there are areas that can be expanded upon, when I get some time to do so.?
If you look at the document I recently updated, that contains all the console commands, you can get an idea of the capabilities of this great little device.?
At this time, it s turning into more of a little software-defined 'black box' with all the great software development that is taking place both in firmware and external applications.?
Oristo and I have been attempting to sort out and make the forum wiki and files sections a little easier to navigate. Please browse both, download everything in site and read it all offline and of course, play, play, play.?
RegardsLarry

I see it called edy255 and also edy555

Oops, should be edy555; correcting...

OK, but not knowing what that is, did anyone rewrite the manual in English?

No professional tech writers here, sorry.
Several folks have taken whacks at manuals.
Unfortunately, many are not under revision control @ GitHub
and best one there is not in English.

The words are all english but don't make a whole lot of sense. Reminds me of
the days when the off shore boys wrote the operational manuals for ham radios,

Plenty of other "professional" documents are comparably scrogged;
some of us recently suffered thru poor USB-C pages....

NO where in the manual does it tell you
step by step how to get rid of the Smith chart overlay.

Not sure to which manual you refer; there are several here:
/g/nanovna-users/wiki/User-Guides

Actually, it never before occurred to me that Smith might not be wanted.
Beyond that, menus and button interactions evolve with firmware..
FWIW, I mostly use firmware limited to 2 traces, so depend on specific feedback
to make corrections.

Next, nothing on interface to the computer NADA.

You are correct that there is no consolidated how-to for linux, macOS, and Windows 7 - 10.
Writing for unavailable platforms is tricky...

Nor does it tell you how to download new revisions.

Until rather recently, firmware updates were IMO sketchy,
but I hope this works:

NO where in the manual does it tell you
step by step how to get rid of the Smith chart overlay.

Added link to HexAndFlex's "Configuring Traces, Channels and Formats"
/g/nanovna-users/wiki/User-Guides

Good idea, Have a house full of visitors this week. 3663 is fine. Can
do. Otherwise I will download the saver file and get ready. Thanks.

Mel, K6KBE

More on getting started, I have a laptop fine, can the Saver be downloaded to a Kindle Fire for portable use? Just a question. On a ladder in the antenna range the Kindle is a lot smaller.

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Mel, K6KBE

Hi Mel,Use this free Android app with the nanoVNA:
?
You will need to ensure your kindle has OTG USB and the proper cable adapter.
Regards,Larry