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Re: NanoVNA Saver - Display Smith Cart
I updated. It works, Thanks
By Charlie N2MHS <ucfargis1@...> · #30145 ·
Re: NanoVNA Saver - Display Smith Cart
Charlie, all versions of nanovna-saver (that I am aware of) can show a Smith Chart. It just needs to be selected using the "Display setup..." button at the bottom left of the main screen. Near the
By Stan Dye · #30144 ·
Re: NanoVNA Saver - Display Smith Cart
What version do you have and where did it come from?Mine does not show this.
By Charlie N2MHS <ucfargis1@...> · #30143 ·
Re: Micro SD Card Issue
On Sat, Oct 29, 2022 at 12:12 AM, Tom Thompson W0IVJ wrote:
By Hugen · #30142 ·
Re: Firmware Differences
Thanks Lester B Veenstra K1YCM M?YCM W8YCM 6Y6Y W8YCM/6Y 6Y8LV (REformed CTM1) lester@... 452 Stable Ln (HC84 RFD USPS Mail) Keyser WV 26726 GPS: 39.336826 N 78.982287 W (Google) GPS:
By Lester Veenstra · #30141 ·
Re: Firmware Differences
DiSlord did just that in an attachment earlier in this thread. I attach it again here for your convenience: [email protected]> wrote:
By Stan Dye · #30140 ·
Re: Firmware Differences
May I suggest (Because I am too lazy) That someone volunteer to lay out the tansformation formula from Smith Chart to real values: Smith Rm to normalized Real to actual resistance Smith Im to
By Lester Veenstra · #30139 ·
Micro SD Card Issue
My NanoVNA-H4, HW version4.3_MS from SeeSii, gives a write error when writing to the SD Card. My NanoVNA-H4, HW version 4.2 from R&L Electronics, writes perfectly to the SD card. Both are running
By Tom Thompson W0IVJ · #30138 ·
Re: Firmware Differences
Hi Bob, You are correct about the type of resistors to use for measurements.? I mostly use BNC cables and devices, so I have built cal standards and measurement standards using BNC connectors as
By Tom Thompson W0IVJ · #30137 ·
Re: NanoVNA Saver - Display Smith Cart
Doesn't Saver display it by default? Look at the button in lower left for "Display Settings..." Then, in the dialog, you can set the plot formats.. >
By Jim Lux · #30136 ·
NanoVNA Saver - Display Smith Cart
I can see the SMith Chart on my H4. Is there a way to see it on my PC (W11 64bit)
By Charlie N2MHS <ucfargis1@...> · #30135 ·
Re: Menu Structure Map for V1.2.14? #firmware #menu
Hello Martin, Thank you very much for the detailed description. My print out of the SMITH menu is: SMITH LIN LOG REIM RX RLC GB GLC RpXp RpLC <- BACK I think this discussion is of still on topic. I
By Rudi · #30134 ·
Re: Menu Structure Map for V1.2.14? #firmware #menu
Well Rudi, the FW is organised as a tree in ui.c. The top menu is called "menu_top". This construction above searches all lines of ui.c (that I had read into the python variable ui and that I iterate
By Ho-Ro · #30133 ·
Re: Menu Structure Map for V1.2.14? #firmware #menu
Hello Martin, Thank you very much for your quick help. With the source code from github it works now without flaw :-) It is amazing what you can do with Python, if you know how to use it :-) I like
By Rudi · #30132 ·
Re: Menu Structure Map for V1.2.14? #firmware #menu
Hi Rudi, I have no clue what goes wrong o your side, I copy/pasted the code here from the group and it works fine. (I suspected that the forum SW did some strange formatting) As a quick check add
By Ho-Ro · #30131 ·
Re: Firmware Differences
S parameter - just complex number, no unit Range from -1 to 1 (real and imaginary part) Show how change reflect/thru signal in amplitude / phase from reference S11 = reflect / reference Re Im format
By DiSlord · #30130 ·
Re: How to use my NanoVNA-H4 to test resonant frequency of a tower?
Rudy Severns often has some useful input on this sort of thing: https://rudys.typepad.com/files/some-notes-on-measuring-tower-resonances.pdf
By Jim Allyn - N7JA · #30129 ·
Re: How to use my NanoVNA-H4 to test resonant frequency of a tower?
Don't know of any reason why it wouldn't work. However ... I'm guessing the wire vertical is NOT grounded at the base of it, but the tower is? That may have some effect on it. Maybe if you could test
By Jim Allyn - N7JA · #30128 ·
Re: How to use my NanoVNA-H4 to test resonant frequency of a tower?
This thread had me thinking and wondering if anyone has successfully determined the resonant frequency of a tower using a Nano? At a friend's recommendation I constructed a 1' x 2' loop and this
By Mike W9RE · #30127 ·
Re: Firmware Differences
Even imaginary numbers have units. This seems to be 0.644 of in_phase A/D full scale + 0.0532 of quadrature A/D full scale. SherpaDoug, WA1UWP
By Douglas Butler · #30126 ·