Re: Loading Wrong FW version for Nano
Gary,
You cannot brick your Nanovna even if you load the wrong FW as the bootloader is in a normally non-writable area, not flash.?
I've intentionally corrupted the FW in my unit to verify this.?
All Nanovna units that are NOT an H4 or F can take any FW that is NOT labelled as H4 or F. (exception is a few of DiSlord's versions that support external 32khz xtals - you need the xtal installed for that FW)
... Larry
On Sat, 18 Jul 2020 at 8:27 PM, gary.sewell@...<gary.sewell@...> wrote: Before I screw up my Nano, I was wanting to know if you load the wrong version of FW into say H4 that was written for the H, first can you, and if so can you reverse it back to the correct FW?
Gary
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Re: Loading Wrong FW version for Nano
If you have H version, open nanoVNA, search Vdd and Boot0 pads Connect in together and power on nanoVNA, after possible upload new firmware as before Remove this connection after finish On H4, possible push leveler button and power on, after upload new firmware
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Re: NanoVNA Saver 0.3.3 or 0.3.4
Hi Enrique,
NanoVNA-Saver 3.6 runs well on Windows 10 64 bit, at least for me, you
can download it here :
Jos
======================================
Do anyone happen to know whether 0.3.6 incorporates updated for the NanoVNA-F 3 GHz update? I recall you need the version: nanovna-saver-0.3.4-bh5hnu.exe for this firmware update.....
Thanks,
David
--
SatSignal Software - Quality software for you
Web:
Email: david-taylor@...
Twitter: @gm8arv
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Re: hi all...VNA noob here, encountering a problem I haven't seen before
An easy to prove possible cause: It could well be a contact (or less probably a PCB jack solder) problem. Try to rescrew the plugs or gently rock them a bit. The SMA cal Load received together with my NanoVNA caused that behavior, too. Purchasing another one fixed it. If the cal Load is bad not at the contact, but inside, you may measure something different to 50 Ohms with a DC Ohm meter. The cal Open cannot be the reason, as it is open anyway, but the cal Short might also have a contact problem. 73, Hans DJ7BA -----Urspr¨¹ngliche Nachricht----- Von: [email protected] < [email protected]> Im Auftrag von Chuck Gesendet: Sonntag, 19. Juli 2020 06:59 An: [email protected]Betreff: Re: [nanovna-users] hi all...VNA noob here, encountering a problem I haven't seen before On Sat, Jul 18, 2020 at 6:47 PM Tim Reimers KA4LFP <treimers95@...> wrote: I have a nano VNA that is now refusing to read correctly after calibration it seems.
After running a one port calibration using the calibration assistant,
using the supplied open, short, and load calibration elements ... My normal technique is to do a scan of the Load element at the
frequencies I have selected (before the calibration)... expecting to see a dot n the middle of the Smith chart and a straight 1:1 line on the SWR chart, as I believe the load element should be 50 ¦¸ of pure resistance. But as of yesterday that is not now how the device responds.
The Smith chart is covered in zigzags instead of even trying to be circles, and the SWR chart looks like a seismograph measuring a 5 on the Richter scale! Well, several things come to mind. First, did anything of note happen "yesterday" ? It is pretty easy to burn out the port if you accidentally transmit into it, or connect an "active" antenna which feeds back power into the VNA. Simpler question is are you using the correct port? The Nano VNA is not a two port device, it transmits only on one port (I don't really expect this to be the case but in the interest of completeness ...) Do you have a different load? If not do you have a 50 ohm resistor you can solder across a cable and plug that in and see what you see? Things that might be helpful when using your VNA, a 6 dB pad to mitigate the effects of high SWR, and/or a DC blocker. If you do the through port calibration does that work as expected? --Chuck AI6ZR -- Diese E-Mail wurde von Avast Antivirus-Software auf Viren gepr¨¹ft.
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Re: hi all...VNA noob here, encountering a problem I haven't seen before
On Sat, Jul 18, 2020 at 6:47 PM Tim Reimers KA4LFP <treimers95@...> wrote: I have a nano VNA that is now refusing to read correctly after calibration it seems.
After running a one port calibration using the calibration assistant,
using the supplied open, short, and load calibration elements ... My normal technique is to do a scan of the Load element at the frequencies I have selected (before the calibration)... expecting to see a
dot n the middle of the Smith chart and a straight 1:1 line on the SWR chart, as I believe the load element should be 50 ¦¸ of pure resistance. But as of yesterday that is not now how the device responds.
The Smith chart is covered in zigzags instead of even trying to be circles, and the SWR chart looks like a seismograph measuring a 5 on the Richter scale! Well, several things come to mind. First, did anything of note happen "yesterday" ? It is pretty easy to burn out the port if you accidentally transmit into it, or connect an "active" antenna which feeds back power into the VNA. Simpler question is are you using the correct port? The Nano VNA is not a two port device, it transmits only on one port (I don't really expect this to be the case but in the interest of completeness ...) Do you have a different load? If not do you have a 50 ohm resistor you can solder across a cable and plug that in and see what you see? Things that might be helpful when using your VNA, a 6 dB pad to mitigate the effects of high SWR, and/or a DC blocker. If you do the through port calibration does that work as expected? --Chuck AI6ZR
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Re: hi all...VNA noob here, encountering a problem I haven't seen before
Checking before calibration is not reliable.
Put it in the freezer for a few minutes and see if it works again until it warms up.
Gary AG7TH
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On 7/18/20 18:47, Tim Reimers KA4LFP wrote: Hello everyone,
I have a nano VNA that is now refusing to read correctly after calibration it seems.
After running a one port calibration using the calibration assistant,
using the supplied open, short, and load calibration elements
... My normal technique is to do a scan of the Load element at the frequencies I have selected (before the calibration)... expecting to see a dot n the middle of the Smith chart and a straight 1:1 line on the SWR chart, as I believe the load element should be 50 ¦¸ of pure resistance.
But as of yesterday that is not now how the device responds.
The Smith chart is covered in zigzags instead of even trying to be circles, and the SWR chart looks like a seismograph measuring a 5 on the Richter scale!
I've read on the topics here, and as a result, I have connected to the device on its COMport and done a "clear config 1234", followed by a power cycle and careful recalibration and retest against the Load, that got me nowhere. Same results on NanoVNASaver, and best I can tell on the tiny LCD, same thing....
what next, o guru's of the NanoVNA?
thanks and 73, Tim KA4LFP
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hi all...VNA noob here, encountering a problem I haven't seen before
Hello everyone,
I have a nano VNA that is now refusing to read correctly after calibration it seems.
After running a one port calibration using the calibration assistant,
using the supplied open, short, and load calibration elements
... My normal technique is to do a scan of the Load element at the frequencies I have selected (before the calibration)... expecting to see a dot n the middle of the Smith chart and a straight 1:1 line on the SWR chart, as I believe the load element should be 50 ¦¸ of pure resistance.
But as of yesterday that is not now how the device responds.
The Smith chart is covered in zigzags instead of even trying to be circles, and the SWR chart looks like a seismograph measuring a 5 on the Richter scale!
I've read on the topics here, and as a result, I have connected to the device on its COMport and done a "clear config 1234", followed by a power cycle and careful recalibration and retest against the Load, that got me nowhere. Same results on NanoVNASaver, and best I can tell on the tiny LCD, same thing....
what next, o guru's of the NanoVNA?
thanks and 73, Tim KA4LFP
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Loading Wrong FW version for Nano
Before I screw up my Nano, I was wanting to know if you load the wrong version of FW into say H4 that was written for the H, first can you, and if so can you reverse it back to the correct FW?
Gary
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Re: User settable number of sample points
Reg, All of DiSlord's firmware for the H4 supports 50, 101 and 201 points. He uploaded his last release a few days ago - search his name and you'll find it. It also has a nicer menu now.? ... Larry On Sat, 18 Jul 2020 at 5:00 PM, Reginald Beardsley via groups.io<pulaskite@...> wrote: I've got a black 2.8" clone and a recent Hugen H-4 from R&L Electronics.? I suspect that the STM32F103 version can't do more than 101 points except via a PC, but it seems to me the STM32F303 version should be able to do more.? I've not seen any option for setting the number of points in the menus. Is there FW that supports user setting of the number of sampling points? Have Fun! Reg
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Re: NanoVNA Saver 0.3.3 or 0.3.4
Hi Enrique,
NanoVNA-Saver 3.6 runs well on Windows 10 64 bit, at least for me, you can download it here :
Jos
Op 15-7-2020 om 01:52 schreef Enrique A. Wembagher LU8EFF:
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Hi Larry,
My programming and compilation knowledge is not the best ones to do it but I totally agree with you.
Holger and Gyula told me how to do it with the Python and I was able to run it (yours help is very best) , ¡.
but it would be nice if someone compiled the latest versions for win 10 / 32-64....
Vy 73
Enrique LU8EFF
-----Mensaje original-----
De: [email protected] [mailto:[email protected]] En nombre de Larry Rothman
Enviado el: martes, 14 de julio de 2020 20:14
Para: [email protected]
Asunto: Re: [nanovna-users] NanoVNA Saver 0.3.3 or 0.3.4
Holger,
One of the newsletters I receive had an article on malware written in Python.
Part of the discussion revolved around how to get the size of the windows package down and there were 3 different Python to EXE utilities presented that are used for non-malware Python to Windows uses.
One of these is: Nuitka -
Right now, the NanoVNA-Saver EXE application is very large and takes time to execute.
What Nuitka does is to convert Python code to C and then compile.
The resultant application size is a fraction of what you get with py2exe or pyinstaller and runs much faster.
Could you try Nuitka on NanovnaSaver to see if it speeds up the application?
I did not look over the entire website but if Nuitka compiles C, it might be able to generate both 32 and 64 bit binaries.
Thanks,
Larry
--
El software de antivirus Avast ha analizado este correo electr¨®nico en busca de virus.
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User settable number of sample points
I've got a black 2.8" clone and a recent Hugen H-4 from R&L Electronics. I suspect that the STM32F103 version can't do more than 101 points except via a PC, but it seems to me the STM32F303 version should be able to do more. I've not seen any option for setting the number of points in the menus.
Is there FW that supports user setting of the number of sampling points?
Have Fun!
Reg
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Re: Protective Case for H4
The lid is in the picture to the right of the base and NanoVNA. I keep the case and accessories in a canvas zipper bag with allows for additional adapters for different kinds on cables you may come across. If it works for you like it does me, feel free to print it.
Darrell
Sent from my over-rated IPhone 7 Plus. Any Mis-spellings or grammar errors are due to my IPhone auto correct feature.
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On Jul 18, 2020, at 15:28, Reginald Beardsley via groups.io <pulaskite@...> wrote:
?Seems to me it needs a lid and space for the cables, cal kit, adapters, etc.
Of course *which* adapters is a very loaded question.
For the moment the very nice box it came in will do for me. Eventually I'll probably put it in a Pelican style case with a bunch of other test gear. If the FNIRSI scope gets hacked so there is better FW, a nanoVNA, FNISRI-1013D, F***Tech 6800 hacked to use a self contained LiPo battery, BSIDE ESR02 Pro and a DMM would make a really nice compact field day support kit.
Have Fun!
Reg
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Re: Protective Case for H4
Seems to me it needs a lid and space for the cables, cal kit, adapters, etc.
Of course *which* adapters is a very loaded question.
For the moment the very nice box it came in will do for me. Eventually I'll probably put it in a Pelican style case with a bunch of other test gear. If the FNIRSI scope gets hacked so there is better FW, a nanoVNA, FNISRI-1013D, F***Tech 6800 hacked to use a self contained LiPo battery, BSIDE ESR02 Pro and a DMM would make a really nice compact field day support kit.
Have Fun!
Reg
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Rees,
At 1dB/div, a REFERENCE POSITION value of 14 puts a -10dB response at mid-screen. Is that what you are looking for, or do you want a more intuitive entry method?
--John Gord
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On Sat, Jul 18, 2020 at 12:40 PM, Kees wrote:
Hi Developper Team,
Since a week I have a NanoVna-H4 with SW version 0.5.0
It is a nice instrument for investigation of someone's designs.
After playing with the possibilities of this instrument
I miss the vertical OFFSET menu to give the REFERENCE a value (dB) in case the
measurement result is falling outside the screen.
If for example I like to see the measurement result of a device with an
attenuation of about 10 dB with a scale of 1 dB/div halfway the height of the
screen,
then I can put the REFERENCE at 8 and give an OFFSET value of -4 dB (to the
REFERENCE).
It may be that this OFFSET menu is discussed earlier but is perhaps not
implemented because there was not enough memory for it in the NanoVna-H4.
Or the OFFSET value may be implemented in a PC application like NanoVna Saver?
Thank you for your effort in advance.
Kees, PE0CWK
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Hi Developper Team,
Since a week I have a NanoVna-H4 with SW version 0.5.0
It is a nice instrument for investigation of someone's designs.
After playing with the possibilities of this instrument
I miss the vertical OFFSET menu to give the REFERENCE a value (dB) in case the measurement result is falling outside the screen.
If for example I like to see the measurement result of a device with an attenuation of about 10 dB with a scale of 1 dB/div halfway the height of the screen,
then I can put the REFERENCE at 8 and give an OFFSET value of -4 dB (to the REFERENCE).
It may be that this OFFSET menu is discussed earlier but is perhaps not implemented because there was not enough memory for it in the NanoVna-H4.
Or the OFFSET value may be implemented in a PC application like NanoVna Saver?
Thank you for your effort in advance.
Kees, PE0CWK
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Re: NanoVNA Saver 0.3.3 or 0.3.4
Try NanoVNA-Saver 0.2.2-1, as far as I know it is 32 bit and an exe is available for windows. It works when the newer versions won't.
Gary AG7TH
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Re: NanoVNA Saver 0.3.3 or 0.3.4
Hello, I need help. I have a NanoVNA-H which goes to 900 MHZ which I purchased from GigaParts . I ordered that to use while waiting for my NanoVNA V2 from Tindie which should arrive very soon. As discussed many times the 3.2" screens is a little small for my 72 year old eyes. So, I am trying to install NanoVNA-Savor on one of my computers for seeing better and have flexibility. I have used a MiniVNA successfully for years.
Just so that you know what I am dealing with:
I have tried to load NanoVNA-Savor on three different computers -- four operating systems. They are.
a. MacBook Pro with Version 10.15.5
b. Same computer with Windows 7 Pro via VMware Fusion version 11.5.1
c. laptop with Windows 7 Pro 32 bit (for ham programs requiring a PC)
d. desktop with Windows 7 Pro 32 bit (my shack computer)
Any one of these would have been helpful.
I first tried to load Savor on "b" which loaded and opened. I then tried to connect it to the NanoVNA. It did not work. The USB cable that came with it was "C" on both ends -- useless. I found three other "C" to "A" cables non of which worked. I discovered that all of them were power only cables. I ordered a proper C to A and connected to the NanoVNA. After being connected for two seconds the program crashed (just quit completely). I started with version 0.3.4 and then tried version 0.3.6 both crashed after about two seconds. The 0.3.6 version was from just before it became the latest version yesterday.
Meanwhile I decided to load 0.3.4 on my laptop "c". It did not work because the program will only work on a 64 bit machine.
Then I tried to load it on my shack computer "d". same results
But, I did not know that the program would not work on a 32 bit machine.
For those of you who post on GitHub, please identify your posting with the fact that it is only for 64 bit machines, or whatever would be appropriate. It took me three days to figure that out. Someone said it on another we site and I finally found it here.
Then I tried to load it onto my MacBook Pro "a". There was an installation hint -- "If using binaries on Mac or Linux you have to chmod +x nanovan-saver after
unzipping as executable flags get lost with zip." I managed to open a terminal and after two or three tries I think I did the above. However, I don't know what to do now. What I like aboutMac computers is that I get a program with a .dmg file. I execute it and it works. Sometimes I have done the above in a terminal but usually with some help. Could you put a link to a step by step process of making this work?
Obfuscated -- that is one of my favorite term. To me it means that the obvious is obscured by all the verbiage. I have been trying to make this work on several platforms for several days without success.
Please don't assume that your audience knows and understand how to do these things. I have been a power user of computers for many years. However, I don't under stand code or how to use these procedures.
Yes, I am complaining some. Please forgive me. I think you can see why I am so frustrated. Any help would be appreciated. My number one goal would be to have Savor work on this computer "a" in either the Mac side or in Windows 7.
Thanks, Joe
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This free S Parameters Webinar may be of interest
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Re: H4 communication Issue
Phil, The connector is obviously defective and the unit is new, ask the seller to replace it - can't hurt to try.? ... Larry On Fri, 17 Jul 2020 at 3:51 PM, p01lindsey@...<p01lindsey@...> wrote: Larry, thanks for the lead.? After checking the board etc., looked inside the USB-C connector itself and one of the sides had maybe 3 of the pins smashed and shorted inside.? So new connector needed, I think it is bad enough that there is now way for me to straighten out again. Thanks again!? Thanks everyone for the help! Phil
-----Original Message----- From: [email protected] < [email protected]> On Behalf Of Larry Rothman Sent: Friday, July 17, 2020 12:24 PM To: [email protected]Subject: Re: [nanovna-users] H4 communication Issue A basic question for you:? have you tried a second USB cable with the H4? There have been instances of companies shipping cheap cables that fail quickly. You might also want to open the H4 housing and using a magnifying glass, make sure there are no solder shorts around the usb connector. ? On Fri, 17 Jul 2020 at 11:06 AM, p01lindsey@...<p01lindsey@...> wrote:? Hello, I have a new H4 unit that I just got a couple of weeks back.? ? Works great until I go to us it with a PC. What I am seeing is on win7 the laptop that I am using never sees anything when I plug in the usb connector.? Power on, power off, plug into the usb port on or off none of that makes a difference.? I never sees it. So then taking it to two different win10 computers if I go into device manager when it is plugged in they both see it but with an error.? The message is Unknown USB Device (Device Description Request Failed). Different computers, different operating systems, power on/power off, etc. Same result. The basic question I have is this a hardware or a driver issue? Thank you in advance! Phil
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Re: H4 communication Issue
Larry, thanks for the lead. After checking the board etc., looked inside the USB-C connector itself and one of the sides had maybe 3 of the pins smashed and shorted inside. So new connector needed, I think it is bad enough that there is now way for me to straighten out again.
Thanks again! Thanks everyone for the help!
Phil
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-----Original Message----- From: [email protected] < [email protected]> On Behalf Of Larry Rothman Sent: Friday, July 17, 2020 12:24 PM To: [email protected]Subject: Re: [nanovna-users] H4 communication Issue A basic question for you: have you tried a second USB cable with the H4? There have been instances of companies shipping cheap cables that fail quickly. You might also want to open the H4 housing and using a magnifying glass, make sure there are no solder shorts around the usb connector. On Fri, 17 Jul 2020 at 11:06 AM, p01lindsey@...<p01lindsey@...> wrote: Hello, I have a new H4 unit that I just got a couple of weeks back. Works great until I go to us it with a PC. What I am seeing is on win7 the laptop that I am using never sees anything when I plug in the usb connector. Power on, power off, plug into the usb port on or off none of that makes a difference. I never sees it. So then taking it to two different win10 computers if I go into device manager when it is plugged in they both see it but with an error. The message is Unknown USB Device (Device Description Request Failed). Different computers, different operating systems, power on/power off, etc. Same result. The basic question I have is this a hardware or a driver issue? Thank you in advance! Phil
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David J Taylor
Chuck
Darrell Carothers
Sam Reaves