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Re: A public message to Hugen
Your words are legally null and void!
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Locked
A public message to Hugen
Hello, on behalf of the NanoVNA V2 hardware design team we have to announce that from today on we can no longer permit you to use our hardware design. To avoid giving you unnecessary trouble we will allow you to continue to sell off your existing inventory, but we ask that you cease production of any hardware that uses our PCB layout design from today on. I understand that this notice is not legally binding because PCB layouts are not covered by copyright. However, we believe that vendors who use our design work and profit from it should respect the wishes of the original developers. We generally permit all vendors to use our design without any royalties, and only very rarely under extenuating circumstances would we rescind permission. However, the events in the past few months forces us to make this difficult decision. You are always free to develop your own layout design from scratch, or to partner with other engineers to develop alternative designs. Thank you and best of luck with your 6GHz VNA efforts. (for anyone else reading this, the backstory is here: /g/NanoVNAV2/message/30)
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Gyula,
I think you're referring to this download from your web page?
The main issue with NanoVNAPartner is its use of code obfuscation. While this not something inherently evil, it's something commonly used by malware authors. This is why it is misidentified as suspect by many virus scanners.
Regards
Christian
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Hi Tony,
you can find it on my web page without a virus.
73, Gyula HA3HZ
--
*** If you are not part of the solution, then you are the problem. ( ) ***
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Regrettably, even Google won't let me download it from Google Drive. I get...
"Sorry, this file is infected with a virus
Only the owner is allowed to download infected files."
- Tony G4WIF
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Re: New open source VNA released - excellent performance claimed
The SAA-2N has a VNA board inside with SMA connectors, short cables out to N-type connectors mounted on the case. As suggested in post /g/nanovna-users/message/17846I'm fine with that approach. And suspect that is what will happen with this 6ghz VNA for those that want to use N-type connectors. And for those that prefer to use SMA's as well. I can believe that the N-Type connectors stand up better to hard use than the rather small SMA. But I would not want N-Type connectors directly mounted to a PCB with easily fractured surface mount caps. N-type don't do any better than SMA's with regard to use at high frequencies. If anybody can point me to a thread with a "consensus" to the contrary, I'm all ears. I didn't find it. Me, I'm fine with SMA's, I don't use this thing often enough to wear anything out. I use my nanovna-H4 with SMA extender cables, so only the far end would wear out if it did. To each their own. Jerry, KE7ER
On Fri, Oct 2, 2020 at 02:24 PM, Sora wrote: N-type connector itself is physically sturdy and has stable RF
characteristics.
It was discussed in another topic whether it was fully demonstrated in SAA-2N,
for example,
but I have to say that the impression of that implementation is a little
unreliable.
SAA-2N did well for an additional cost of around $ 30. Well, it looks a bit
reckless, but I still like the challenge.
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Re: New open source VNA released - excellent performance claimed
Hello Jerry,
Some time ago, my friend got a wide-band receiver / spectrum analyzer KC908.
This is a project that was around $ 1500 during crowdfunding.
The developers say that there are plans to expand to 40GHz in the future and HW already supports it.
Certainly a 2.92mm K-type connector is used.
(It seems that the current product has been changed to a male connector)
Yes, the first impression I had when I saw Jan's previous 6G-VNA was a fascinating and beautiful design.
And I even tried to find an affordable CNC milling machine on AliExpress.
N-type connector itself is physically sturdy and has stable RF characteristics.
It was discussed in another topic whether it was fully demonstrated in SAA-2N, for example,
but I have to say that the impression of that implementation is a little unreliable.
SAA-2N did well for an additional cost of around $ 30. Well, it looks a bit reckless, but I still like the challenge.
Sora
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Re: Can Nano be used to test for power level (amps) at antenna?
On Sunday 27 September 2020 07:08:59 pm Jerry Gaffke via groups.io wrote: In post 17730 I wrote:
"Jeff has a bunch of really good blog posts about directional couplers."
Here's the blog post I was thinking of but could not find:
That's an excellent analysis of the Tandem Match.
This business of adding a voltage reading to a current reading (with proper scaling)
is the basis of most SWR meters that an amateur radio operator might use.
It is also an excellent example of how circuit analysis
of a rather difficult problem can be carried out.
And gives further insight to the nature of reflections. There's some good stuff there, as well as in some of the links that he provides, like: as well... -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, ?a critter that can be killed but can't be tamed. ?--Robert A. Heinlein, "The Puppet Masters" - Information is more dangerous than cannon to a society ruled by lies. --James M Dakin
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"merely a modification" ???
No disrespect intended - but if I could 'merely' write modifications like that I'd be Very pleased with myself !!
Kind Regards
Ross
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Hi Neb,
Very nice work - Many Thanks - Still learning how to use the VNA & this version of the interface software is very complete and should help a Lot :-)
Thanks again . .
Regds
Ross
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Re: need a startup guide that describes the behavior of the LEDs on the side
The two blue leds are connected to the ADF4350 and tell it is in lock. They will go off when the ADF4350 are powered down (aka scan stops before 140Mhz) There are two more leds on the PCB. One is to indicate clipping and the other shows activity. Gabriel or OwoComm described them somewhere but I cannot find it again. Also see /g/NanoVNA-V2/wiki
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Re: Strange problem with Dislord v1.0.39
Yes! This "calibrate 2 ch" version fixed my problem - thank you!! Really nice firmware - great job! Thank you for the fast support!
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On Thu, Oct 1, 2020 at 04:00 PM, DiSlord wrote:
Try this, in it for calibrate need 2x time, but i do some as on measure
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Re: Strange problem with Dislord v1.0.39
Hi DiSlord,
*This one* seems to work! I was able to properly calibrate the small span range. Thank you for very much for the help!
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On Thu, Oct 1, 2020 at 04:00 PM, DiSlord wrote:
Try this, in it for calibrate need 2x time, but i do some as on measure
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Re: Connect Antenna Trap to NanoVNA
And here is an excellent treatment of calculating the trap L/C values or ratio as mentioned in my prior post for an antenna dipole with a set of given physical dimensions.
Alan
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Re: need a startup guide that describes the behavior of the LEDs on the side
Since there are now many flavors of NANO's out there but the ones that I have with the 4 red LED's on the side indicate the state of the battery charge. While charging all 4 will be on with one of them flashing and once fully charged it stays on. While running on battery the 1st one goes out after a few minutes than after some time 2nd goes off than a bit later the 3rd will go out. the last led will stay on a few hours and once the battery voltage reaches its full discharge it turns off and so does the NANO. The 2 little blue leds and just my guess, 1 might be something like watchdog or every time it starts a sweep, have no clue about the 2nd one.
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Re: Strange problem with Dislord v1.0.39
There is no need for that:
dfu-util -d 0483:df11 -a 0 -s 0x08000000:leave -D build/ch.bin
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On Fri, 2 Oct 2020 at 00:34, Larry Rothman <nlroth@...> wrote: Ok, in that case, you need to use the dfu manager utility that comes with
DeFuSe to convert from hex to dfu. You'll find it in the stmicro folder in
the Start menu on windows.
I think it's on PG 28 of the userguide I edit in the forum files section.
Once you've mastered the conversion process, you'll be all set for
whatever the devs release.
... Larry
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Re: Strange problem with Dislord v1.0.39
Ok, in that case, you need to use the dfu manager utility that comes with DeFuSe to convert from hex to dfu. You'll find it in the stmicro folder in the Start menu on windows.? I think it's on PG 28 of the userguide I edit in the forum files section. Once you've mastered the conversion process, you'll be all set for whatever the devs release.? ... Larry On Thu, 1 Oct 2020 at 4:48 PM, Alan ¡°W2AEW¡± Wolke<alan.wolke@...> wrote: Larry - I haven't been able to find a .dfu for this version.
On Thu, Oct? 1, 2020 at 04:40 PM, Larry Rothman wrote:
Why not try edy555's June release of FW?
? On Thu, 1 Oct 2020 at 3:35 PM, Alan ¡°W2AEW¡± Wolke<alan.wolke@...>
wrote:? Very strange.? I got the same bad result with this version too.?
It's almost as if the source is not on when I reach the THRU calibration
step.? If I go back and repeat the THRU, it seems to sometimes work, but
mostly not.? Also, and I don't know if this is related, but when I return to
the CALIBRATION menu after DONE/SAVE operation, only some of the
OPEN/SHORT/LOAD/ISO/THRU items are checked, even though I ran through all of
them in order.?
I really love what you've done with the firmware - if I can get this issue
sorted out, it would give me a lot more confidence.
On Thu, Oct? 1, 2020 at 12:37 PM, DiSlord wrote:
Unfortunately I cannot reproduce the problem, I set the range 450-490,
460-475. Calibrated, everything went smoothly.
I later added a reset of the generator cache when starting the scan, maybe
this will help.
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Re: New open source VNA released - excellent performance claimed
I guess this finally ends the usefulness of my 20MHz-2GC GR-1607A transfer admittance bridge! Maybe I will put it on the fireplace mantel!
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Re: Strange problem with Dislord v1.0.39
Threshold setting of the Si5351? On Thu, 1 Oct 2020 at 22:50, Alan ¡°W2AEW¡± Wolke <alan.wolke@...> wrote: HI DiSlord,
This is what I have been doing. It seems that there are times that the
source is turned off (or maybe at wrong frequency) when this happens. Does
that give you a clue to what might be wrong?
On Thu, Oct 1, 2020 at 03:48 PM, DiSlord wrote:
you can made calibration in more big range
After only change start/stop frequency (in most cases calibration
interpolation work very good, now used 401 calibration points and get
less
errors)
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Re: Strange problem with Dislord v1.0.39
HI DiSlord,
This is what I have been doing. It seems that there are times that the source is turned off (or maybe at wrong frequency) when this happens. Does that give you a clue to what might be wrong?
toggle quoted message
Show quoted text
On Thu, Oct 1, 2020 at 03:48 PM, DiSlord wrote:
you can made calibration in more big range
After only change start/stop frequency (in most cases calibration
interpolation work very good, now used 401 calibration points and get less
errors)
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OwO
Gyula Molnar
Sora