I have determined that the problem is with the nanoVNA device. It will not
communicate with any of my PCs. I have two with Windows 10 and one with
Windows 7. The nanoVNA works well as stand alone, but will not communicate
with a computer.
Thanks to all for the help that you have been!!
David
toggle quoted message
Show quoted text
On Thu, Mar 2, 2023 at 2:46?PM robert miles <bob@...> wrote: Hi david
I am not at home right now so not near my laptop but this might help?
On 2 Mar 2023, at 4:44 pm, David Reams <dwr.kj4de@...> wrote:
???It looks like it is conflicting with another port. Below is what I am
seeing on my laptop:
[image: image.png]
[image: image.png]
It appears that it is trying to conflict with Port 3. What is the best way
to solve the port contradiction?
Again, thanks for your help!!!
David
On Wed, Mar 1, 2023 at 4:36?€?AM robert miles <bob@...> wrote:
Hi David
If you right click on the STM Device in dfu mode and select properties.
Go to update driver.
Browse to the install directory for the STM software ( prob in programs
x86) and press enter.
That should fix it.
Other thing to check is that the com port assigned to the STM USB driver
is correct and not clashing with another in device manager.
Worked for me with W10 on 64 bit machine.
On 1 Mar 2023, at 12:35 am, David Reams <dwr.kj4de@...> wrote: ???I am still unable to get the nanoVNA to assign a port. I have
Windows 10
and the nanoVNA will not automatically assign a port and the program
suggested above does not assign a port. When I place the nanoVNA in DFU
mode it does show "STM Device in DFU Mode". under Universal Serial bus
Controllers. Otherwise it shows "Unknown device" if not in DFU mode. No
port assignment is indicated at all. I might be having a problem with
the nanoVNA equipment itself. When not connected to a PC, the device works
fine.
Maybe this problem can be solved, but if there is, in fact, a problem with
the device, no solution would be forthcoming.
Again, thanks for all of your help!!
David
.
On Tue, Feb 28, 2023 at 1:31?€?PM Roger Need via groups.io
<sailtamarack=
[email protected]> wrote:
On Mon, Feb 27, 2023 at 06:33 PM, David Reams wrote:
Can you give me some more information on the STM boot loader and a source to
download?
David,
There are two different drivers required when using a NanoVNA-H or
NanoVNA-H4. One is required to get a COMxx: port so that your PC can
exchange data with a NanoVNA. The other driver is required when you
want
to do firmware updates on your device.
COM port driver
---------------------
With Windows 10 and Windows 11 the required driver will be installed
by
Windows when you connect your NanoVNA to a USB port. With Windows 7
and
Windows 8 you have to manually install the driver and then plug in
your
NanoVNA. If Windows 10 fails to install the driver (rarely happens)
you
can use the Windows 8 driver. You can check that the driver is
working
by
plugging in and turning on your NanoVNA and then going into Device
Manager
and looking under ports to get the COM port number that has been
assigned
If you power off the NanoVNA the COM port should disappear from Device
Manager. I have put a copy of the drivers on my BOX account for you
to
download. Here is a link where you can download it >>
Unzip and select the 32 or 64 bit version for your computer.
Firmware Upgrade driver
---------------------------------
This driver is only required when you want to upgrade your firmware.
It
does not assign a COM port when the NanoVNA is plugged in and in DFU
mode.
DFU mode is activated in different ways depending on your device and
the
firmware installed. Old devices had to be put in DFU mode by opening
the
case and shorting the Boot0 and DFU pins. In other cases DFU was
accessed
by a Menu selection. DFU mode on the -H4 is activated by depressing
the
rocker switch down and powering on the anoVNA. When in DFU mode the
screen
will be black. You can check that the driver is installed correctly
by
looking under USB controllers and seeing if it shows that your device
is in
DFU mode (see attached screenshot). I have posted a link to the DfuSe
package on my Box account for you. It will install the DFU driver and
the
DfuSe firmware upgrade application.
The Absolute Beginners Guide in the file section of this group tells
you
how to install the DFU drivers that are needed for firmware update and
how
to install the latest firmware.
/g/nanovna-users/files/Absolute%20Beginner%20Guide%20to%20The%20NanoVNA/Absolute_Beginner_Guide_NanoVNA_v1_6.pdf
You don't have to register to get the DFU program and drivers. I have
put
a copy on my Box account for you...
Roger
<image.png>
<image.png>
|
That¡¯s great! Much obliged!
Thanks
Steve
toggle quoted message
Show quoted text
On Mar 4, 2023, at 12:39 PM, Roger Need via groups.io <sailtamarack@...> wrote:
?On Sat, Mar 4, 2023 at 09:24 AM, Steve Bowers wrote:
I¡¯m trying but I¡¯m getting some erratic information. I¡¯m sure it¡¯s
user error.
I put a copy of the Absolute Beginner's Guide on my Box account for you to download. Download button in upper right hand corner. Here is the link.
Roger
|
On Sat, Mar 4, 2023 at 09:24 AM, Steve Bowers wrote:
I¡¯m trying but I¡¯m getting some erratic information. I¡¯m sure it¡¯s
user error.
I put a copy of the Absolute Beginner's Guide on my Box account for you to download. Download button in upper right hand corner. Here is the link. Roger
|
If you look inside the H4 there is a connector which the flat cable from the display plugs into. Perhaps it is not seated well and needs to be reinserted and clamped down. If that does not help you will need a new display.
Roger
|
I¡¯m trying but I¡¯m getting some erratic information. I¡¯m sure it¡¯s user error.
Thanks
Steve
toggle quoted message
Show quoted text
On Mar 4, 2023, at 12:15 PM, Chris Gardner via groups.io <seaman98@...> wrote:
?No problem, enjoy your H4!
On Mar 4, 2023, at 11:17, Steve Bowers <bowxyz@...> wrote:
?Awesome!! Much obliged!!!
Thanks
Steve
On Mar 4, 2023, at 10:57 AM, Chris Gardner via groups.io <seaman98@...> wrote: ?Greetings, May I suggest that you obtain a copy of this document (Absolute Beginners Guide). I am sure you will find the information there.
Log In ( /g/nanovna-users/files/Absolute%20Beginner%20Guide%20to%20The%20NanoVNA/Absolute_Beginner_Guide_NanoVNA_v1_5.pdf )
groups.io ( /g/nanovna-users/files/Absolute%20Beginner%20Guide%20to%20The%20NanoVNA/Absolute_Beginner_Guide_NanoVNA_v1_5.pdf )
apple-icon-180x180.png ( /g/nanovna-users/files/Absolute%20Beginner%20Guide%20to%20The%20NanoVNA/Absolute_Beginner_Guide_NanoVNA_v1_5.pdf )
( /g/nanovna-users/files/Absolute%20Beginner%20Guide%20to%20The%20NanoVNA/Absolute_Beginner_Guide_NanoVNA_v1_5.pdf )
73¡¯²õ
On Mar 4, 2023, at 09:25, bowxyz@... wrote:
? Help. Newly purchased Nano VNA H4 March 2, 2023.
I've read several posts on the H4 model about firmware and each mention
identifying the proper version and the URL that is listed. Mine does not
have a URL listed. Version is 1.1.01 [p:401, IF20k, ADC:384k, Lcd480x320.
Build Time Dec 30, 2021.
I'm sure there are probably newer versions but I am unsure as to the
process to properly update.
Any help would be greatly appreciated.
<apple-icon-180x180.png>
|
Greetings, One quick and easy check is to make sure that the front and back halves of the case aren¡¯t too tight putting excessive pressure on the display. Try loosening the screws see if the issue subsides
toggle quoted message
Show quoted text
On Mar 4, 2023, at 11:32, Igor - PY3IG <igor.jobim@...> wrote:
?A user has the nanovna H4 with this display defect. Suggestions before switching to a new display?
Igor.
<FB_IMG_1677946840700.jpg>
|
No problem, enjoy your H4!
toggle quoted message
Show quoted text
On Mar 4, 2023, at 11:17, Steve Bowers <bowxyz@...> wrote:
?Awesome!! Much obliged!!!
Thanks
Steve
On Mar 4, 2023, at 10:57 AM, Chris Gardner via groups.io <seaman98@...> wrote:
?Greetings, May I suggest that you obtain a copy of this document (Absolute Beginners Guide). I am sure you will find the information there.
Log In ( /g/nanovna-users/files/Absolute%20Beginner%20Guide%20to%20The%20NanoVNA/Absolute_Beginner_Guide_NanoVNA_v1_5.pdf )
groups.io ( /g/nanovna-users/files/Absolute%20Beginner%20Guide%20to%20The%20NanoVNA/Absolute_Beginner_Guide_NanoVNA_v1_5.pdf )
apple-icon-180x180.png ( /g/nanovna-users/files/Absolute%20Beginner%20Guide%20to%20The%20NanoVNA/Absolute_Beginner_Guide_NanoVNA_v1_5.pdf )
( /g/nanovna-users/files/Absolute%20Beginner%20Guide%20to%20The%20NanoVNA/Absolute_Beginner_Guide_NanoVNA_v1_5.pdf )
73¡¯²õ
On Mar 4, 2023, at 09:25, bowxyz@... wrote:
? Help. Newly purchased Nano VNA H4 March 2, 2023.
I've read several posts on the H4 model about firmware and each mention
identifying the proper version and the URL that is listed. Mine does not
have a URL listed. Version is 1.1.01 [p:401, IF20k, ADC:384k, Lcd480x320.
Build Time Dec 30, 2021.
I'm sure there are probably newer versions but I am unsure as to the
process to properly update.
Any help would be greatly appreciated.
<apple-icon-180x180.png>
|
A user has the nanovna H4 with this display defect. Suggestions before switching to a new display?
Igor.
|
Awesome!! Much obliged!!!
Thanks
Steve
toggle quoted message
Show quoted text
On Mar 4, 2023, at 10:57 AM, Chris Gardner via groups.io <seaman98@...> wrote:
?Greetings, May I suggest that you obtain a copy of this document (Absolute Beginners Guide). I am sure you will find the information there.
Log In ( /g/nanovna-users/files/Absolute%20Beginner%20Guide%20to%20The%20NanoVNA/Absolute_Beginner_Guide_NanoVNA_v1_5.pdf )
groups.io ( /g/nanovna-users/files/Absolute%20Beginner%20Guide%20to%20The%20NanoVNA/Absolute_Beginner_Guide_NanoVNA_v1_5.pdf )
apple-icon-180x180.png ( /g/nanovna-users/files/Absolute%20Beginner%20Guide%20to%20The%20NanoVNA/Absolute_Beginner_Guide_NanoVNA_v1_5.pdf )
( /g/nanovna-users/files/Absolute%20Beginner%20Guide%20to%20The%20NanoVNA/Absolute_Beginner_Guide_NanoVNA_v1_5.pdf )
73¡¯²õ
On Mar 4, 2023, at 09:25, bowxyz@... wrote:
? Help. Newly purchased Nano VNA H4 March 2, 2023.
I've read several posts on the H4 model about firmware and each mention
identifying the proper version and the URL that is listed. Mine does not
have a URL listed. Version is 1.1.01 [p:401, IF20k, ADC:384k, Lcd480x320.
Build Time Dec 30, 2021.
I'm sure there are probably newer versions but I am unsure as to the
process to properly update.
Any help would be greatly appreciated.
<apple-icon-180x180.png>
|
toggle quoted message
Show quoted text
On Mar 4, 2023, at 09:25, bowxyz@... wrote:
? Help. Newly purchased Nano VNA H4 March 2, 2023.
I've read several posts on the H4 model about firmware and each mention
identifying the proper version and the URL that is listed. ?Mine does not
have a URL listed. Version is 1.1.01 [p:401, IF20k, ADC:384k, Lcd480x320.
Build Time Dec 30, 2021.
I'm sure there are probably newer versions but I am unsure as to the
process to properly update.
Any help would be greatly appreciated.
|
Re: NanoVNA firmvare, compiled by DiSlord
#firmware
Scale factor for SWR = 0.250 = 250m (milli)
|
Re: NanoVNA firmvare, compiled by DiSlord
#firmware
I was also wandering why the SWR scale says 250m. FW version 1.2.14.
|
Help. Newly purchased Nano VNA H4 March 2, 2023.
I've read several posts on the H4 model about firmware and each mention identifying the proper version and the URL that is listed. Mine does not have a URL listed. Version is 1.1.01 [p:401, IF20k, ADC:384k, Lcd480x320.
Build Time Dec 30, 2021.
I'm sure there are probably newer versions but I am unsure as to the process to properly update.
Any help would be greatly appreciated.
|
Regarding noisy plots, I have used NanoVNA-App on both Raspberry Pi and Windows laptop. The RPi gave noticeably more noise but it was reduced in both cases with a ferrite clamp on the USB cable close to the NanoVNA.
--
Mike G8GYW
|
On Fri, Mar 3, 2023 at 05:54 PM, Siegfried Jackstien wrote:
if you calibrate the cable out then all should show near similar results
.. not??
measure without cable calibration can not work good so question is ...
did you calibrate out that 3m cable??
if calibrated (and calibration IS LOADED ALSO!!) then nanovna_app shows
near perfect results compared to internal calibration
only slight variations depending how high you have set averaging in the
device
higher average gives smoother curves but also a more exact calibration ...
dg9bfc sigi
This was a comparison of how well each one calibrated the same cable and measured a 1K DUT. A new calibration using the same cal loads was done at the end of the 3M cable for each test and then they were compared. The results for NanoVNA App, NanoVNA Saver and Standalone VNA should all be very close because they all are all calibrated the same and used the same 1K SMD resistor as the DUT. Averaging was not used in these tests - just one sweep. The standalone NanoVNA-H4 and NanoVNA Saver gave very similar results. NanoVNA did NOT do well. As "btomek" pointed out in hos first post there is something wrong with the NanoVNA App calibration algorithm. Try it your self and see what you get and post your results... Roger
|
if you calibrate the cable out then all should show near similar results .. not??
measure without cable calibration can not work good so question is ... did you calibrate out that 3m cable??
if calibrated (and calibration IS LOADED ALSO!!) then nanovna_app shows near perfect results compared to internal calibration
only slight variations depending how high you have set averaging in the device
higher average gives smoother curves but also a more exact calibration ...
dg9bfc sigi
Am 02.03.2023 um 23:09 schrieb Roger Need via groups.io:
toggle quoted message
Show quoted text
Follow-up to last post. Here are some more measurements of a 1K SMD DUT. Using NanoVNA -H4 (1.2.19 fw) in standalone mode (no PC) and comparing it to NanoVNA Saver and OD NanoVNA app. Measurements made on H4 were exported as a s1p file and imported into NanoVNA app for plotting.
1. Compare NanoVNA-H4 and NanoVNA Saver using 3M coax cable.
2. Compare NanoVNA-H4 and NanoVNA App using 3M coax cable.
3. Compare NanoVNA-H4 using 3M and 15 cm coax cables.
What is evident is close agreement between the 15 cm and 3M results when using the NanoVNA-H4 in standalone mode. So the long cable de-embedding works nicely on the -H4 firmware by DiSlord. Comparison between Saver and -H4 in standalone mode with 3m coax also showed good results. However NanoVNA app does not do well on 3m tests.
Roger
|
Follow-up to last post. Here are some more measurements of a 1K SMD DUT. Using NanoVNA -H4 (1.2.19 fw) in standalone mode (no PC) and comparing it to NanoVNA Saver and OD NanoVNA app. Measurements made on H4 were exported as a s1p file and imported into NanoVNA app for plotting.
1. Compare NanoVNA-H4 and NanoVNA Saver using 3M coax cable.
2. Compare NanoVNA-H4 and NanoVNA App using 3M coax cable.
3. Compare NanoVNA-H4 using 3M and 15 cm coax cables.
What is evident is close agreement between the 15 cm and 3M results when using the NanoVNA-H4 in standalone mode. So the long cable de-embedding works nicely on the -H4 firmware by DiSlord. Comparison between Saver and -H4 in standalone mode with 3m coax also showed good results. However NanoVNA app does not do well on 3m tests.
Roger
|
Thanks for the reply and information.
I did recalibrate and saved them to SD. But the RECALL FROM SD menu item isn't there in 1.2.14. I rolled back to 1.2.0 for now.
Regards
|
On Wed, Mar 1, 2023 at 10:05 PM, DiSlord wrote:
Calibrate device in measured range.
Interpolation not give good results for long cables (on big phase change for
measured points)
I agree that you should calibrate for the measured range and that interpolation must be used carefully. Here are two examples where I calibrate over 50k to 900 MHz and want to measure some 0805 SMD resistors. I am not using interpolation. Test conditions: --------------------- - NanoVNA-H4 was calibrated for 50 to 900 kHz. but measurements were made using OD NanoVNA app and NanoVNA Saver version 5.3 - Calibration in both programs was done using 401 points and without sweep averaging - 3m of RG-316 coax was used with SMD test jig on far end. Calibration load was 50 ohm 0805 SMD resistor (see attached for photo of setup). Two 0805 SMD resistors were tested (100 and 1k ohms) - NanoVNA Saver test results saved as s1p file and imported into NanoVNA app for plotting comparison. Results are attached. It is easy to see that something is wrong with NanoVNA App calibration on longer cables. Roger
|
Hi david
I am not at home right now so not near my laptop but this might help?
toggle quoted message
Show quoted text
On 2 Mar 2023, at 4:44 pm, David Reams <dwr.kj4de@...> wrote:
?It looks like it is conflicting with another port. Below is what I am
seeing on my laptop:
[image: image.png]
[image: image.png]
It appears that it is trying to conflict with Port 3. What is the best way
to solve the port contradiction?
Again, thanks for your help!!!
David
On Wed, Mar 1, 2023 at 4:36?AM robert miles <bob@...> wrote:
Hi David
If you right click on the STM Device in dfu mode and select properties.
Go to update driver.
Browse to the install directory for the STM software ( prob in programs
x86) and press enter.
That should fix it.
Other thing to check is that the com port assigned to the STM USB driver
is correct and not clashing with another in device manager.
Worked for me with W10 on 64 bit machine.
On 1 Mar 2023, at 12:35 am, David Reams <dwr.kj4de@...> wrote: ?I am still unable to get the nanoVNA to assign a port. I have Windows 10
and the nanoVNA will not automatically assign a port and the program
suggested above does not assign a port. When I place the nanoVNA in DFU
mode it does show "STM Device in DFU Mode". under Universal Serial bus
Controllers. Otherwise it shows "Unknown device" if not in DFU mode. No
port assignment is indicated at all. I might be having a problem with
the nanoVNA equipment itself. When not connected to a PC, the device
works
fine.
Maybe this problem can be solved, but if there is, in fact, a problem with
the device, no solution would be forthcoming.
Again, thanks for all of your help!!
David
.
On Tue, Feb 28, 2023 at 1:31?PM Roger Need via groups.io <sailtamarack=
[email protected]> wrote:
On Mon, Feb 27, 2023 at 06:33 PM, David Reams wrote:
Can you give me some more information on the STM boot loader and a source to
download?
David,
There are two different drivers required when using a NanoVNA-H or
NanoVNA-H4. One is required to get a COMxx: port so that your PC can
exchange data with a NanoVNA. The other driver is required when you want
to do firmware updates on your device.
COM port driver
---------------------
With Windows 10 and Windows 11 the required driver will be installed by
Windows when you connect your NanoVNA to a USB port. With Windows 7 and
Windows 8 you have to manually install the driver and then plug in your
NanoVNA. If Windows 10 fails to install the driver (rarely happens) you
can use the Windows 8 driver. You can check that the driver is working
by
plugging in and turning on your NanoVNA and then going into Device
Manager
and looking under ports to get the COM port number that has been
assigned
If you power off the NanoVNA the COM port should disappear from Device
Manager. I have put a copy of the drivers on my BOX account for you to
download. Here is a link where you can download it >>
Unzip and select the 32 or 64 bit version for your computer.
Firmware Upgrade driver
---------------------------------
This driver is only required when you want to upgrade your firmware. It
does not assign a COM port when the NanoVNA is plugged in and in DFU
mode.
DFU mode is activated in different ways depending on your device and the
firmware installed. Old devices had to be put in DFU mode by opening
the
case and shorting the Boot0 and DFU pins. In other cases DFU was
accessed
by a Menu selection. DFU mode on the -H4 is activated by depressing the
rocker switch down and powering on the anoVNA. When in DFU mode the
screen
will be black. You can check that the driver is installed correctly by
looking under USB controllers and seeing if it shows that your device
is in
DFU mode (see attached screenshot). I have posted a link to the DfuSe
package on my Box account for you. It will install the DFU driver and
the
DfuSe firmware upgrade application.
The Absolute Beginners Guide in the file section of this group tells you
how to install the DFU drivers that are needed for firmware update and
how
to install the latest firmware.
/g/nanovna-users/files/Absolute%20Beginner%20Guide%20to%20The%20NanoVNA/Absolute_Beginner_Guide_NanoVNA_v1_6.pdf
You don't have to register to get the DFU program and drivers. I have
put
a copy on my Box account for you...
Roger
<image.png>
<image.png>
|
Roger Need
Igor - PY3IG
