Re: Running Mac installation as an application
Thank you so much, Mario! Your suggestion worked perfectly!
All the best,
John
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Re: Android NanoVNA WebApp
I know of only one phone app that is for android phones. It is available on
Google play store.
It is NanoVNA.
TOM KC7BJE
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I just tried this () and it works. There is one modification that needs to be made to the script.
The formulas for computing the return loss (20log(S11)) have a syntax error.
This is because Octave's base 10 log syntax is "log10(x)".
The current program uses "log(x)" syntax which computes the natural log.
The fix is to change "Log mag = 20log(abs(D))" to "Log mag = 20*log10(abs(D))"
This effects three comment lines ( 8, 184, and 204 ) and the main program line # 136.
The result is that if you run the program with a known 20 dB return loss load, it will read over 40 dB.
Bob, W1RS
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Measure Crystal Characteristics Automatically Using a NanoVNA
#xtals
Crystal measurement and design seem to be a hot topic among some of this group's members. Rose engineering has shared a python script at to automatically characterize your crystals using a test fixture and a Nanovna.
Since the script is written in Python it should run of Windows, Linux and the MacOS.
Herb
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Re: NanoVNA firmvare, compiled by DiSlord #firmware with MiniSD support
#firmware
What functionality does adding the miniSD card add?
The same option as a device used to store files on a computer. Depending on the size of the SD card, you can store graphs without having to take your computer with you. Currently, NanoVNA-Saver is a PC program that allows you to store a graph and retrieve it later. 73, Gyula HA3HZ -- *** nothing is permanent only change ( ) ***
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Re: NanoVNA firmvare, compiled by DiSlord #firmware with MiniSD support
#firmware
You can use it to:
- install new firmware
- save & restore calibrations
- save & resore screens
- save & restore setups
.....etc? (once all the enhancements are written by the developers)
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On Tuesday, May 26, 2020, 12:37:02 p.m. GMT-4, Birdman <ccarrara@...> wrote:
I really hate to ¡°interrupt¡± you guys with this important work/discussion... but...
What functionality does adding the miniSD card add?
--
Regards,
Chris
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Re: NanoVNA firmvare, compiled by DiSlord #firmware with MiniSD support
#firmware
I really hate to ¡°interrupt¡± you guys with this important work/discussion... but...
What functionality does adding the miniSD card add?
--
Regards,
Chris
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Re: Running Mac installation as an application
This shell file currently works for me (where I manually install nanosaver), but don't forget to mark it executable and make sure it has the ".command" extension.
M
##!/bin/bash
cd ~/dvl/nanosaver/nanovna-saver-master/
python3 nanovna-saver.py
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Do you have the battery placed when the LEDs are lit?
Thats because of the V2 charging mechanism.
I am not sure if I would find the V2 useful "portable" ie, with power from
batteries. If I needed for a an antenna analysis I would simply use a USB
power bank. I think this device belongs to the lab bench.
FR4 is OK, it will isolate from the outside RF. I have 3D printed my casing
in ABS, no need to shield it more than it is already :)
*73 de Lu¨ªs, CT2FZI*
*QRV @ 145.300 MHz | **CQ0VMST (VHF REP Monsanto)*
<>
<>
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On Tue, 26 May 2020 at 16:00, <mcebokli@...> wrote: I got my SAA2 a few days ago, the bare bones version from tindie.
BTW, is feedback expected at tindie? Found no mechanism on their page, but
I'm not registered, so...
I have already ordered a battery before, so I connected it, and it works.
A bit clumsy that there is no option to fasten the battery. I have just put
it between the two boards, will probably use some two sided sticky tape.
Also thinking of soldering together a case out of 1mm FR4 material. Does
anybody have experience if a metal (copper clad) case will cause any
degradation?
Why are the LEDs lit for some time after power off? That's pretty
confusing, especially when first encountered.
When I'll find some time, I hope to do some tests and write a short review.
Marko Cebokli
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I got my SAA2 a few days ago, the bare bones version from tindie.
BTW, is feedback expected at tindie? Found no mechanism on their page, but I'm not registered, so...
I have already ordered a battery before, so I connected it, and it works. A bit clumsy that there is no option to fasten the battery. I have just put it between the two boards, will probably use some two sided sticky tape.
Also thinking of soldering together a case out of 1mm FR4 material. Does anybody have experience if a metal (copper clad) case will cause any degradation?
Why are the LEDs lit for some time after power off? That's pretty confusing, especially when first encountered.
When I'll find some time, I hope to do some tests and write a short review.
Marko Cebokli
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Re: Android NanoVNA WebApp
The forum Wiki has all the info you'll need to use the nanoVNA
- - Please use it - -
There is a link at the bottom of every forum email sent out.
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On Tuesday, May 26, 2020, 5:56:23 a.m. GMT-4, tuckvk3cca <tuckvk3cca@...> wrote:
Didn't know there is a Phone App for the nanovna. Where can I find it?
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Re: Android NanoVNA WebApp
Didn't know there is a Phone App for the nanovna. Where can I find it?
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Thank you, avvidclif, agreed on your point (shielding from stray signals
and interference). For whatever's worth, my initial state of confusion was
to the lack of identifying markings, or accompanying guidelines, on the
standards. Once helpful members here described a bit in more detail how I'm
supposed to think about it, it all made total sense.
I'm hopeful my systematic errors with filters measurements will also get
some insightful light shed on them too here. I'm currently risking running
out of time with the vendor, in case I'm dealing with a defective unit.
Thank you all,
Radu.
<>
Virus-free.
www.avg.com
<>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
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On Sun, May 24, 2020 at 4:47 PM avvidclif <clif@...> wrote: On the previous question about why using the OPEN cal standard instead of
nothing. The standard prevents the ingress of any stray RF that might be
floating around.
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Re: NanoVNA firmvare, compiled by DiSlord #firmware with MiniSD support
#firmware
On Mon, May 25, 2020 at 01:28 PM, hwalker wrote: Good point DiSlord. The S-A-A-V2 has a 18-pin socket for plugging the display
module into, which makes assembly and changing to different display sizes
hassle free - as long as the firmware supports the display.
Changing the display of the -H or -H4 is another matter and requires above
average soldering skills and tools. One slip and you might as well purchase a
new unit. In the States you can get a NanoVNA-H4 for $59 USD delivered in 3-4
days, almost not worth the hassle except for the learning experience.
- Herb
For S-A-A-V2 situation more easy, it use not only display module, it use PCB board vs module, all PCB board have standart pins 4` ST7796S display module on board 2.8` ILI9341 display module on board 3.2` ILI9341 display module on board They have equal pin connector, and can be easy replaced (have only board size problems) Also need order module vs XPT2046 touch And yes ST7796S and ILI9341 drivers should be supported by software.
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Re: NanoVNA firmvare, compiled by DiSlord #firmware with MiniSD support
#firmware
On Mon, May 25, 2020 at 12:56 PM, Larry Rothman wrote:
Since the F303 was a drop-in upgrade from the F072, all the pinouts remained
the same.
I have attached portions of the H and H4 schematics - the SD card interface?
from the uP is the same for both boards.
...Larry
Then possible try build H version vs SD Card support, possibly in future i do it At this moment i get one problem RTC clock on STM32. Then use internal oscillator not run then power off, and not possible fix it, so timer settings not valid after power on For fix this need use external oscillator for RTC on MCU pin Pin 3 - PC14 - OSC32_IN
Pin 4 - PC15 - OSC32_OUT Easy way to install it use P3 connector and olc clock 32768 oscillator For additional need enable use LSE by software. But need detect installed external osc, and if it not present enable internal mode (but in this mode clock not show correct time). At this moment i only enable LSE, it correctly run, not reset on power off (only if remove battery)
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Re: NanoVNA firmvare, compiled by DiSlord #firmware with MiniSD support
#firmware
On Mon, May 25, 2020 at 12:28 PM, DiSlord wrote:
"You should understand
1 - Most Display module for H4 (ST7796S driver) like this
Have 40pin connector
H version use ILI9341 module like this
Have 18 pin connector"
=============================================
Good point DiSlord. The S-A-A-V2 has a 18-pin socket for plugging the display module into, which makes assembly and changing to different display sizes hassle free - as long as the firmware supports the display.
Changing the display of the -H or -H4 is another matter and requires above average soldering skills and tools. One slip and you might as well purchase a new unit. In the States you can get a NanoVNA-H4 for $59 USD delivered in 3-4 days, almost not worth the hassle except for the learning experience.
- Herb
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Aleks,
Two suggestions from your photo:
1. Calibrate the unit. The NanoVNA-V2 does not interpolate between points when you change frequency settings and forces you to re-calibrate to the new frequency range for accuracy. When you power the V2 up it does not automatically recall "Save 0" settings. You have to manually "Recall 0" yourself.
2. The NanoVNA-V2 defaults to 101 pts. For increased accuracy change the range to 201 pts.
I haven't seen a translation of the NanoVNA-V2 manual to Cyrillic. Maybe you could help some of the USSR users by doing so.
- Herb
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Re: NanoVNA firmvare, compiled by DiSlord #firmware with MiniSD support
#firmware
Since the F303 was a drop-in upgrade from the F072, all the pinouts remained the same.
I have attached portions of the H and H4 schematics - the SD card interface? from the uP is the same for both boards.
...Larry
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On Monday, May 25, 2020, 3:54:13 p.m. GMT-4, Larry Rothman <nlroth@...> wrote: Since the F303 was a drop-in upgrade from the F072, all the pinouts remained the same. I have attached portions of the H and H4 schematics - the SD card interface? from the uP is the same for both boards. ...Larry ? ? On Monday, May 25, 2020, 3:28:22 p.m. GMT-4, DiSlord <dislordlive@...> wrote: On Mon, May 25, 2020 at 10:03 AM, Larry Rothman wrote:
? The Gekko version of the early nanoVNAs had the solder pads for an SD card
slot - look at my forum photo from almost a year ago.
I actually added a slot to mine but then sold the unit and bought a better
made one (no SD pads).
/g/nanovna-users/message/223
I have ordered an ST32F303 and I'm looking for the proper LCD panel so that I
can convert my H into an H4.
I will add an SD slot to the PCB as well.
...Larry
? ? On Monday, May 25, 2020, 12:50:54 p.m. GMT-4, DiSlord
<dislordlive@...> wrote:
? No for H need compile its own firmware, it have about 14kB free flash. Only
Fat32 and short filenames need ~10kB (but i don`t test this for H firmware)
Also H version not have SD slot on PCB board, need add it, but this difficult
for me (for my test).
?
If SD card on this board connected as on H4 board, possible compile firmware version for H vs SD Card support I have ordered an ST32F303 and I'm looking for the proper LCD panel so that I can convert my H into an H4. You should understand 1 - Most Display module for H4 (ST7796S driver) like this Have 40pin connector H version use ILI9341 module like this Have 18 pin connector Yes possible replace it, but ... i don`t know, you have to overcome many difficulties
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Re: NanoVNA firmvare, compiled by DiSlord #firmware with MiniSD support
#firmware
On Mon, May 25, 2020 at 10:03 AM, Larry Rothman wrote:
The Gekko version of the early nanoVNAs had the solder pads for an SD card
slot - look at my forum photo from almost a year ago.
I actually added a slot to mine but then sold the unit and bought a better
made one (no SD pads).
/g/nanovna-users/message/223
I have ordered an ST32F303 and I'm looking for the proper LCD panel so that I
can convert my H into an H4.
I will add an SD slot to the PCB as well.
...Larry
On Monday, May 25, 2020, 12:50:54 p.m. GMT-4, DiSlord
<dislordlive@...> wrote:
No for H need compile its own firmware, it have about 14kB free flash. Only
Fat32 and short filenames need ~10kB (but i don`t test this for H firmware)
Also H version not have SD slot on PCB board, need add it, but this difficult
for me (for my test).
If SD card on this board connected as on H4 board, possible compile firmware version for H vs SD Card support I have ordered an ST32F303 and I'm looking for the proper LCD panel so that I can convert my H into an H4. You should understand 1 - Most Display module for H4 (ST7796S driver) like this Have 40pin connector H version use ILI9341 module like this Have 18 pin connector Yes possible replace it, but ... i don`t know, you have to overcome many difficulties
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Clyde Lambert
Gyula Molnar
Chris K2STP
CT2FZI
F4WCV
