Hey Roger,
Thanks a bunch! I'll give it a go and let you know how it went.
73,
Cliff, AE5ZA
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On Aug 23, 2022, at 13:26, Roger Need via groups.io <sailtamarack@...> wrote:
On Mon, Aug 22, 2022 at 03:04 PM, Cliff wrote:
Thank you for your suggestion Roger, but I don't think you understand what I
am looking for. I'm looking for the .bin version of the firmware 1.2 update
file. I'm on Mac and use the STM Cube Programmer to update my NanoVNA H4. The
NanoVNA-App appears to be a Windows program.
Cliff,
You can covert a dfu file to bin using the DFU File Manager that comes with DfuSe demo but unfortunately that only installs on Windows. I did the conversion for you of DiSlords version 1.2 dfu file that I found at the link below.
I hope the attached bin file works for you. Please post after you have tried it.
Roger
<NanoVNA.H4.v1.2.00.bin>
|
Re: Antenna Gain measurement with NanoVNA
he does not want it ... but it is ;-)
fed with a balanced tuner it should work any band from 160 to 10
maybe the ladderline length needs some tuning if you are at a very high or low impedance spot on a higher band but in principle a doublet (or biiiiig loop) is the best multibander you can have ... just needs a good tuner
dg9bfc sigi
ps i am using a 168m loop ... also fed via ladderline
Am 23.08.2022 um 20:15 schrieb Fred Moore:
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Good afternoon Dave.
Just out of curiosity, why would you want a 450 ft doublet resonant at 950
kHz?
Fred - N4CLA
On Tue, Aug 23, 2022 at 2:01 PM W0LEV <davearea51a@...> wrote:
A dipole, by definition, is resonant: +jX = -jX = 0.
A doublet is a dipole, but not resonant where you require.
My 450-foot doublet exhibits its first 1/2-wavelength resonance at roughly
950 kHz, but does not show resonance in any of the HF ham bands.
Yes, measurements need to be made to reduce / minimize unwanted
reflections. That's the devil in the details.
Dave - W?LEV
On Tue, Aug 23, 2022 at 5:54 PM Roger Need via groups.io <sailtamarack=
[email protected]> wrote:
On Tue, Aug 23, 2022 at 10:13 AM, W0LEV wrote:
A dipole works fine for the reference antenna. Nominally 2.2_ dB gain over
isotropic.
That is the gain of a dipole antenna in free space at resonance. Over
ground the gain is higher. How much higher depends on height and ground
characteristics.
Roger
--
*Dave - W?LEV*
*Just Let Darwin Work*
--
Dave - W?LEV
|
On Mon, Aug 22, 2022 at 03:04 PM, Cliff wrote:
Thank you for your suggestion Roger, but I don't think you understand what I
am looking for. I'm looking for the .bin version of the firmware 1.2 update
file. I'm on Mac and use the STM Cube Programmer to update my NanoVNA H4. The
NanoVNA-App appears to be a Windows program.
Cliff, You can covert a dfu file to bin using the DFU File Manager that comes with DfuSe demo but unfortunately that only installs on Windows. I did the conversion for you of DiSlords version 1.2 dfu file that I found at the link below. I hope the attached bin file works for you. Please post after you have tried it. Roger
|
Re: Antenna Gain measurement with NanoVNA
Good afternoon Dave.
Just out of curiosity, why would you want a 450 ft doublet resonant at 950
kHz?
Fred - N4CLA
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Show quoted text
On Tue, Aug 23, 2022 at 2:01 PM W0LEV <davearea51a@...> wrote: A dipole, by definition, is resonant: +jX = -jX = 0.
A doublet is a dipole, but not resonant where you require.
My 450-foot doublet exhibits its first 1/2-wavelength resonance at roughly
950 kHz, but does not show resonance in any of the HF ham bands.
Yes, measurements need to be made to reduce / minimize unwanted
reflections. That's the devil in the details.
Dave - W?LEV
On Tue, Aug 23, 2022 at 5:54 PM Roger Need via groups.io <sailtamarack=
[email protected]> wrote:
On Tue, Aug 23, 2022 at 10:13 AM, W0LEV wrote:
A dipole works fine for the reference antenna. Nominally 2.2_ dB gain
over
isotropic.
That is the gain of a dipole antenna in free space at resonance. Over
ground the gain is higher. How much higher depends on height and ground
characteristics.
Roger
--
*Dave - W?LEV*
*Just Let Darwin Work*
--
Dave - W?LEV
|
Re: Antenna Gain measurement with NanoVNA
A dipole, by definition, is resonant: +jX = -jX = 0. A doublet is a dipole, but not resonant where you require. My 450-foot doublet exhibits its first 1/2-wavelength resonance at roughly 950 kHz, but does not show resonance in any of the HF ham bands. Yes, measurements need to be made to reduce / minimize unwanted reflections. That's the devil in the details. Dave - W?LEV On Tue, Aug 23, 2022 at 5:54 PM Roger Need via groups.io <sailtamarack= [email protected]> wrote: On Tue, Aug 23, 2022 at 10:13 AM, W0LEV wrote:
A dipole works fine for the reference antenna. Nominally 2.2_ dB gain
over
isotropic.
That is the gain of a dipole antenna in free space at resonance. Over
ground the gain is higher. How much higher depends on height and ground
characteristics.
Roger
-- *Dave - W?LEV* *Just Let Darwin Work* -- Dave - W?LEV
|
Re: Antenna Gain measurement with NanoVNA
On Tue, Aug 23, 2022 at 10:13 AM, W0LEV wrote:
A dipole works fine for the reference antenna. Nominally 2.2_ dB gain over
isotropic.
That is the gain of a dipole antenna in free space at resonance. Over ground the gain is higher. How much higher depends on height and ground characteristics. Roger
|
Re: Antenna Gain measurement with NanoVNA
A dipole works fine for the reference antenna. Nominally 2.2_ dB gain over
isotropic.
Dave - W?LEV
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On Tue, Aug 23, 2022 at 2:00 PM KENT BRITAIN <WA5VJB@...> wrote: Yes, but you need a source antenna and an antenna for the same frequency
with known gain. Kent WA5VJB
On Tuesday, August 23, 2022 at 08:56:38 AM CDT, Diane BONKOUNGOU <
dianebonk2@...> wrote:
Hello,
Is it possible to measure PCB trace antenna Gain with the NanoVNA?
Thanks
-- *Dave - W?LEV* *Just Let Darwin Work*
--
Dave - W?LEV
|
No desire - Cube is a far better tool, and supported by ST. I see no real advantage to .dfu over .bin, and ST has obsoleted it as well.
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On August 23, 2022 1:58:56 AM CDT, Ho-Ro <homuth-rosemann@...> wrote: On Tue, Aug 23, 2022 at 06:41 AM, Tim Dawson wrote:
It's about the only component missing on tbe Linux side for coders that only
output .dfu
For FW upgrade on a Linux system you can use "dfu-util" that is available e.g. for Debian:
$ apt show dfu-util
Package: dfu-util
Version: 0.9-1+b1
Priority: optional
Section: electronics
Source: dfu-util (0.9-1)
Maintainer: Uwe Hermann <uwe@...>
...
DFU is intended to download and upload firmware to devices connected over
USB. It ranges from small devices like micro-controller boards up to mobile
phones. With dfu-util you are able to download firmware to your device or
upload firmware from it.
Just do "apt install dfu-util"
The program can flash *.bin as well as *.dfu binaries:
dfu-util -a 0 -D NanoVNA.H.v1.2.00.dfu
To build the FW on your own from the github clone (you need also "apt install gcc-arm-none-eabi") just type "make" and "make flash", this calls:
dfu-util -d 0483:df11 -a 0 -s 0x08000000:leave -D build/ch.bin
HTH, Martin
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.
|
Re: Antenna Gain measurement with NanoVNA
Yes, but you need a source antenna and an antenna for the same frequency with known gain.? ?Kent WA5VJB
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On Tuesday, August 23, 2022 at 08:56:38 AM CDT, Diane BONKOUNGOU <dianebonk2@...> wrote:
Hello,
Is it possible to measure PCB trace antenna Gain with the NanoVNA?
Thanks
|
Antenna Gain measurement with NanoVNA
Hello,
Is it possible to measure PCB trace antenna Gain with the NanoVNA?
Thanks
|
SAA-2N Crashes NanoVNASaver when attempting to Connect
Hi All,
I recently purched a SAA-2N from Amazon, and could only Intemittantly connect to NanoVNASaver software.
Most of the attempts to Connect the SAA-2 to NanoSaver caused it to crash.
From what I have read , others have had a similar problem.
I think I stumbled onto a solution to this problem,.
Turn on your NanoVNA and connect it to your PC with a USB Cable.
Don't start the NanoSaver program yet.
Open the main Menu on the SAA-2, and check the box to "Pause Sweep".
Now start NanoSaver and try connecting your NA to the software.
Since "Pausing the Sweep".my SAA-2 connects every time to NanoSaver.
It appears the" Sweeping" in my SAA-2 is causing the connection to the software to crash NanoSaver..
You can re-enable Sweep after connecting to the software if you wish.
Hope this helps others.
Frank, K7SFN
|
On Tue, Aug 23, 2022 at 08:58 AM, Ho-Ro wrote:
To build the FW ... just type "make" and "make flash",
Default is -H, for -H4 the command is TARGET=F303 make && make flash
|
On Tue, Aug 23, 2022 at 06:41 AM, Tim Dawson wrote:
It's about the only component missing on tbe Linux side for coders that only
output .dfu
For FW upgrade on a Linux system you can use "dfu-util" that is available e.g. for Debian: $ apt show dfu-util Package: dfu-util Version: 0.9-1+b1 Priority: optional Section: electronics Source: dfu-util (0.9-1) Maintainer: Uwe Hermann <uwe@...> ... DFU is intended to download and upload firmware to devices connected over USB. It ranges from small devices like micro-controller boards up to mobile phones. With dfu-util you are able to download firmware to your device or upload firmware from it. Just do "apt install dfu-util" The program can flash *.bin as well as *.dfu binaries: dfu-util -a 0 -D NanoVNA.H.v1.2.00.dfu To build the FW on your own from the github clone (you need also "apt install gcc-arm-none-eabi") just type "make" and "make flash", this calls: dfu-util -d 0483:df11 -a 0 -s 0x08000000:leave -D build/ch.bin HTH, Martin
|
Does that program (STDFU File Manager) have a Linux build?
It's about the only component missing on tbe Linux side for coders that only output .dfu (and why Cube can't extract ftom dfu is a mystery, unless ST really wants to drop dfu support completely)
I see "dfuse-extract" on GitHub, and being a Python tool, it should be portable across all Cube supported platforms . . . might you have tried it?
There has got to be a way to have a consistent programming platform across all platforms, and while not small, Cube appears to be the closest (other than directly using .dfu files . .)
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On August 22, 2022 11:12:40 PM CDT, Jeff Peacock <km6nqx@...> wrote: I was able to use STDFU File Manager to extract the .bin file from the 1.2.0 .dfu and then load it with STM32CubeProgrammer, which seems to have worked fine. I've been playing around with it a bit, and I think I've realized that I had a fundamental misunderstanding of the search function. I've been thinking that Search Minimum was an action, but I realize now that it's a setting/target to be used in conjunction with Search Left or Search Right (i.e. for the next minimum). Which makes DiSlord's comment above (#29375) make a lot more sense to me in retrospect. Words are slippery things.
Anyway, all is well and I really appreciate the comments and pointers.
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.
|
I was able to use STDFU File Manager to extract the .bin file from the 1.2.0 .dfu and then load it with STM32CubeProgrammer, which seems to have worked fine. I've been playing around with it a bit, and I think I've realized that I had a fundamental misunderstanding of the search function. I've been thinking that Search Minimum was an action, but I realize now that it's a setting/target to be used in conjunction with Search Left or Search Right (i.e. for the next minimum). Which makes DiSlord's comment above (#29375) make a lot more sense to me in retrospect. Words are slippery things.
Anyway, all is well and I really appreciate the comments and pointers.
|
Note that Cube is the *ONLY* programmer tool that STMicro officially supports . . . (and which should support all platforms).
It should be without flaw, the developers just need to drop plain .bin files as well as the .dfu (encapsulation of the .bin).
Huygen seems to have .dfu, .bin, and .hex for all his builds, not sure why DisLord does not do likewise - it's not much of a change in the build process.
- Tim
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On 08/22/2022 04:53 PM, Roger Need via groups.io wrote: Cliff,
I suggest you use NanoVNA app as your PC program. It is easy to use for firmware updates and has never failed me yet. It also does all the things that NanoSaver does and in my opinion is better.
Owen Duffy did some nice bug fixes on the original code by OneOfEleven. You can get it at the link below.
Once installed you do the following easy steps:
1. Put your device in DFU mode
2. Start NanoVNA app
3. Push multiple up arrow button (do not use connect - it is for regular connect not DFU)
4. Select the location of your dfu file and select file
5. Program does the upload and says to power off device when finished.
Roger
--
Tim Dawson
972-567-9360
|
Thank you for your suggestion Roger, but I don't think you understand what I am looking for. I'm looking for the .bin version of the firmware 1.2 update file. I'm on Mac and use the STM Cube Programmer to update my NanoVNA H4. The NanoVNA-App appears to be a Windows program.
73,
Cliff, AE5ZA
toggle quoted message
Show quoted text
On Aug 22, 2022, at 16:53, Roger Need via groups.io <sailtamarack@...> wrote:
Cliff,
I suggest you use NanoVNA app as your PC program. It is easy to use for firmware updates and has never failed me yet. It also does all the things that NanoSaver does and in my opinion is better.
Owen Duffy did some nice bug fixes on the original code by OneOfEleven. You can get it at the link below.
Once installed you do the following easy steps:
1. Put your device in DFU mode
2. Start NanoVNA app
3. Push multiple up arrow button (do not use connect - it is for regular connect not DFU)
4. Select the location of your dfu file and select file
5. Program does the upload and says to power off device when finished.
Roger
<Easy FW update.png>
|
Cliff,
I suggest you use NanoVNA app as your PC program. It is easy to use for firmware updates and has never failed me yet. It also does all the things that NanoSaver does and in my opinion is better.
Owen Duffy did some nice bug fixes on the original code by OneOfEleven. You can get it at the link below.
Once installed you do the following easy steps:
1. Put your device in DFU mode
2. Start NanoVNA app
3. Push multiple up arrow button (do not use connect - it is for regular connect not DFU)
4. Select the location of your dfu file and select file
5. Program does the upload and says to power off device when finished.
Roger
|
Where would I find the corresponding .bin file for the H4?
73,
Cliff, AE5ZA
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On Aug 22, 2022, at 15:16, DiSlord <dislordlive@...> wrote:
You can download it from here
|
my final review...Battery experiments were futile. All batteries will show the power on problem when fully charged. My workaround if I need it in the field is to carry a phone charger with type C connector. Plug it in to power on, then unplug it while on. Or, if using closeby, unplug it from charger while on. After some use, it will function correctly. The designers should come up with a revision, hopefully simple enough for a DIY repair, but no guarantees. I use mine mainly in the lab where I have power. As for the buggy software, I can only hope they fix that too. If anyone does not see the power on issue, then please post.
|
Roger Need
Ho-Ro
