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Re: NanoVNA connected to Amazon Fire tablet
When I download NanaVNA-Webapp-nightly-e20d9ae.apk from the Github.com/cho45 on my 4 month old Amazon Fire 10. using web browser "Silk" I click on the .apk and get a popup, "Do you Want to Download" I
By Larry Macionski · #8460 ·
Re: errors of "error" models
#88 : the G formula - our research work has been completed Hello, Allow us, please, to present the complete G formula - in our sow and facupov, of course - at: https://www.op4.eu/code/G.png in terms
By gin&pez@arg · #8459 ·
Re: nanoVNA Partner #nanovna_partner
Jos, Try https://drive.google.com/open?id=1Zy9C51H22ZZ3u8NDkgWJGED8TT2To5nF or contact me through email. Kind regards, neb
By neb · #8458 ·
Re: QEX Magazine #tutorials
FYI, a (new) digital version of QEX will be available to all ARRL members starting early next year. If you want the print version, you¡¯ll need to subscribe. Mark W8EWH
By Mark - W8EWH · #8457 ·
Re: nanoVNA Partner #nanovna_partner
Hi Both addresses give message from Norton " Dangerous Webpage" Sorry Jos Op 21-12-2019 om 09:49 schreef neb40gsm via Groups.Io:
By Jos Stevens · #8456 ·
Re: Thermal effect?
Yeah, the original Nano (and mini/pocket VNA, plus most old HP gear) are like that. It's possible to remove the drift (and I mean not having to re-calibrate after warmup) with an internal correction
By OwO · #8455 ·
Re: Thermal effect?
The difference is, that after warmup one gets repeatable results. When I calibrated the cold VNA and started to measure, maybe the very first results showed true numbers, but very soon results drifted
By Christoph Schw?rzler · #8454 ·
Re: nanoVNA Partner #nanovna_partner
nanoVNA Partner v 0.19 - Max and Min points unit of values displayed fixed; - Main chart size can now be horizontally increased; - Added Q-Factor on the main chart; - Added separate Cal Reset button
By neb · #8453 ·
Re: Calibration Algorithm #calibration
Look in the source code of nanoVNA-saver on github Or if you only require perfect calibration standards use this: plusJ=complex(0,1); minJ=complex(0,-1); one=complex(1,0); two=complex(2,0); gm1 = S;
By Erik Kaashoek · #8449 ·
Calibration Algorithm #calibration
Hello I'm just completing a nice project in Python to Autotune a Magnetic Loop antenna using this great NanoVNA. So far, so good, but now I would like to include a calibration procedure so as to be
By hb9 iiu · #8448 ·
Re: Thermal effect?
In the miniVNA (VNA / J) software there is a thermometer. The green light only occurs above 45 ¡ã. I missed this information on nanoVNA.
By Igor - PY3IG · #8447 ·
Re: First PCB pictures of the V2
/g/nanovna-users/message/3872 -- Regards, Martin - G8JNJ
By Martin · #8445 ·
Re: First PCB pictures of the V2
Please don't keep us in suspense! What are the make and part number for these buttons? Dana
By Dana Whitlow · #8444 ·
Re: conecting to a homebrew hf verticle antenna
First item, NVIS: Near impossible with a vertical. Not going to happen above about 5mhz under current solar conditions. Suitable antenna would be a dipole for 80/75M low to the ground. Low in this
By aparent1/kb1gmx <kb1gmx@...> · #8443 ·
Re: First PCB pictures of the V2
Gabriel, I think it would be advantageous to at least place the solder pads for an SD TF card slot as I had on my original white Gecko board. Just leave them unpopulated for now and when the firmware
By Larry Rothman · #8442 ·
Re: First PCB pictures of the V2
I replaced the jog switch with 3 edge mount through-hole pushbuttons. Any more suggestions (minor changes) before I submit the design for one more round of prototyping? I am not the owner of the
By OwO · #8440 ·
Re: First PCB pictures of the V2
No, UltraVNA should be a full two-port, > 6 GHz analyzer, >120 dB S21 (and S12) at least. I want to build one, if I only had time... Reinier Op 20-12-2019 om 16:32 schreef Larry Rothman:
By Reinier Gerritsen · #8439 ·
Re: First PCB pictures of the V2
How about the name: UltraVNA ??
By Larry Rothman · #8438 ·
Re: First PCB pictures of the V2
I did not intend to speak, but I ask: Your conscience is fine, can you sleep soundly? Doesn't it bother you steal your other intellectual product? ¡°I'm just an engineer on the OwoComm development
By Gyula Molnar · #8437 ·
Re: errors of "error" models
ann : next-to-come : a practical introduction to errors of "errors"
By gin&pez@arg · #8436 ·