Re: errors of "error" models
Hello Oristo;
Yes... Those were the instructions that I followed. It's a bit of an odd tool to use though. I suppose if mathematics is your first language it makes sense; and you will be comfortable with it. It looks like it's going to be a very steep learning curve for me.
I was able to copy and paste the "DERDEI-unpacked_20191001-600-1000.MC" source into the wxMaxima GUI and get it to run following the guidance provided for doing it this way in the Oct 2 post # 3770. That might suggest forward progress, but I still have a lot of ground to cover before I'm going to be able to achieve this task on my own. The output is the 6 gnu plots that are described, and are what I believe to be the end goal of this project.
I managed to get the OpenWatcom Fortran compiler installed and responding, but I remain clueless on what and how to link the source files, the 4, reflection coefficient files, the uncertainty limits file, and how to compile them into an executable file that generates the files used for the plots. I've done limited assembly level programming Altair's and PICs, and even less C (Arduino) programming, so I know enough to recognize the environment is different than a Spice simulator, and that's pretty much how far up the learning curve I am with Fortran.
It is comforting to know that there are others that are taking note of the work being done here.
73
Gary, N3GO
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Re: Antenna Analyzer frequency range
It's the same specs as the 4 trace firmware - just larger text font and 2 traces.?The freq span is 50KHz to 1.5GHz (300MHz without using harmonics)
On Sat, 2 Nov 2019 at 8:10 PM, Roy Ashkenaz<roya@...> wrote: Does anyone know the Antenna Analyzer frequency range? I¡¯m not sure if I have an issue
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Antenna Analyzer frequency range
Does anyone know the Antenna Analyzer frequency range? I¡¯m not sure if I have an issue
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Didn't require special anything.
Software might have already been installed. If not type "sudo apt install dfu-util" and it will install.
The only hardware required was the cable supplied with the VNA.
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On 02 November 2019 at 17:36 "Bob Albert via Groups.Io" <bob91343@...> wrote:
I asked that question but got no useful replies.? After some investigation I discovered that updating is not simple.? There are two ways, each requiring special software or hardware.
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Re: 50ohm cal load failed
Mine's only good to a couple hundred megs and then becomes reactive. On 02 November 2019 at 11:43 "davebb123456 via Groups.Io" <david.browne7@...> wrote:
Hi My 50 ohm cal load failed that I got in the kit,
has anyone had this happen to them ?
Thanks Dave 2E0DMB
Nigel A. Gunn, 1865 El Camino Drive, Xenia, OH 45385-1115, USA. tel +1 937 825 5032 Amateur Radio G8IFF W8IFF and GMRS WRBV701, e-mail nigel@... www
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Dear Bob
This morning I was a bit worried that something could have gone wrong while replacing firmwares.
After having read several messages saying that nothing bad could really happen, I decided to give a try.
This group includes a wiki section explaining it all.
It's just about installing a driver, and an application. If one carefully reads the instructions, it will take not more than 15 minutes the first time, and less than 2 afterwards.
I had a good reason to change the firmware, and if you are happy with your device, then its true that it makes not really sense to change something.
73 de HB9IIU
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Bob & Dick,Please refer to the forum Wiki and files sections for answers to your questions.? There are links at the bottom of every forum email message or to the top left of the webpage.?
There are instructions there on how to update.?
You can do this from Windows (preferred) or Linux a little more involved.?
I am investigating a way to do it with Android but that is even less inviting at this point.?
... Larry
On Sat, 2 Nov 2019 at 5:36 PM, Bob Albert via Groups.Io<bob91343@...> wrote: I asked that question but got no useful replies.? After some investigation I discovered that updating is not simple.? There are two ways, each requiring special software or hardware.? The hardware is a little item that costs a few bucks and is made by/for one of the manufacturers of the processor.
I also haven't been able to find a program to run from android.
Since I am actually happy with the way my nanoVNA works, I probably won't go to the trouble or risk to update it.
Bob
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On Saturday, November 2, 2019, 02:29:22 PM PDT, Dick <w1ksz@...> wrote: Dumb Question time ... I see many comments about updating the firmware, but nothing on a procedure to do so ? Does it automatically update once the Nano senses a firmware update or is there more too it ? Thanks, Dick, W1KSZ ________________________________ From: [email protected] < [email protected]> on behalf of Jim Allyn - N7JA <jim@...> Sent: Saturday, November 2, 2019 11:52 AM To: [email protected] < [email protected]> Subject: Re: [nanovna-users] Brick my Nano On 11/1/19 11:27 PM, hb9 iiu wrote: What are the chances that I brick my NanoVNA when trying to upload a new firmware? ? ? ? Very, very slim, I would say.? There are probably several billion of those processors in use in various gadgets around the world, many of which get updated regularly.? Some people update their Nanos on a near daily basis, and the developers might update several or even dozens of times in a day.? I wouldn't worry about it.
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I asked that question but got no useful replies.? After some investigation I discovered that updating is not simple.? There are two ways, each requiring special software or hardware.? The hardware is a little item that costs a few bucks and is made by/for one of the manufacturers of the processor.
I also haven't been able to find a program to run from android.
Since I am actually happy with the way my nanoVNA works, I probably won't go to the trouble or risk to update it.
Bob
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On Saturday, November 2, 2019, 02:29:22 PM PDT, Dick <w1ksz@...> wrote: Dumb Question time ... I see many comments about updating the firmware, but nothing on a procedure to do so ? Does it automatically update once the Nano senses a firmware update or is there more too it ? Thanks, Dick, W1KSZ ________________________________ From: [email protected] < [email protected]> on behalf of Jim Allyn - N7JA <jim@...> Sent: Saturday, November 2, 2019 11:52 AM To: [email protected] < [email protected]> Subject: Re: [nanovna-users] Brick my Nano On 11/1/19 11:27 PM, hb9 iiu wrote: What are the chances that I brick my NanoVNA when trying to upload a new firmware? ? ? ? Very, very slim, I would say.? There are probably several billion of those processors in use in various gadgets around the world, many of which get updated regularly.? Some people update their Nanos on a near daily basis, and the developers might update several or even dozens of times in a day.? I wouldn't worry about it.
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Dumb Question time ... I see many comments about updating the firmware, but nothing on a procedure to do so ? Does it automatically update once the Nano senses a firmware update or is there more too it ? Thanks, Dick, W1KSZ ________________________________ From: [email protected] < [email protected]> on behalf of Jim Allyn - N7JA <jim@...> Sent: Saturday, November 2, 2019 11:52 AM To: [email protected] < [email protected]> Subject: Re: [nanovna-users] Brick my Nano On 11/1/19 11:27 PM, hb9 iiu wrote: What are the chances that I brick my NanoVNA when trying to upload a new firmware? Very, very slim, I would say. There are probably several billion of those processors in use in various gadgets around the world, many of which get updated regularly. Some people update their Nanos on a near daily basis, and the developers might update several or even dozens of times in a day. I wouldn't worry about it.
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Re: errors of "error" models
HI Gary - The Maxima install was uneventful here under Windows 10 on my desktop. Did you only follow these instructions: .. without any DataExecutionPrevention steps?
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The Tracking Number the Seller gave me was for a package delivered to Colorado (I am in Arizona !!). Guess it's time to pulse e-Bay/PayPal. Tnx, Dick, W1KSZ ________________________________ From: [email protected] < [email protected]> on behalf of Roy Appleton <twelveoclockhigh@...> Sent: Saturday, November 2, 2019 8:13 AM To: [email protected] < [email protected]> Subject: Re: [nanovna-users] Deal on ebay Just got my money back from the last bogus eBay listing at $19.95! Roy WA0YMH On Sat, Nov 2, 2019, 9:20 AM hb9 iiu <hb9iiu@...> wrote: Just ordered one for fun at $15.99... ref 254398992632
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NanoVNA with antenna or component detailed Analysis:
By Jeff King Zl4AI
First step is to saving S1p and S2p Files:
Yes you can do a lot with SP1 Files. The following software allows directly reading:
SWR - Standing Wave Ratio
Rs - Resistance, series form
Xs - Reactance, series form
Zmag - Impedance magnitude
Theta (deg) - Impedance angle
Rho (mag) - Reflection coefficient magnitude
RL (dB) - Return Loss, plotted as a negative number to show "reverse" scale (see note below)
Phase (deg) - Reflection coefficient angle
% Reflected Power
Q - Quality factor, |Xs| / Rs
Rp - Resistance, parallel form
Xp - Reactance, parallel form
Ls (?H) - Equivalent inductance for series Xs, both positive and negative
Cs (pF) - Equivalent capacitance for series Xs, both positive and negative
Lp (?H) - Equivalent inductance for parallel Xp, both positive and negative
Cp (pF) - Equivalent capacitance for parallel Xp, both positive and negative
Download:
Zplots.xlsx from AC6LA
and Rigexpert
and Sim Smith
From ZL4AI
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Re: Nanovna data output: Use the following other FREE software
Hi Jeff,
out of interest: Is there anything there that you think is missing in
NanoVNA-Saver? I think I have it all covered, but I'm always eager to pick
up what might be missing.
--
Rune / 5Q5R
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On Sat, 2 Nov 2019 at 21:00, Jeff King <jking2603@...> wrote: This file shows 3 software programs to get all the information you need
with antenna or component
detailed Analysis.pdf
You can extract:
SWR - Standing Wave Ratio
Rs - Resistance, series form
Xs - Reactance, series form
Zmag - Impedance magnitude
Theta (deg) - Impedance angle
Rho (mag) - Reflection coefficient magnitude
RL (dB) - Return Loss, plotted as a negative number to show "reverse"
scale (see note below)
Phase (deg) - Reflection coefficient angle
% Reflected Power
Q - Quality factor, |Xs| / Rs
Rp - Resistance, parallel form
Xp - Reactance, parallel form
Ls (?H) - Equivalent inductance for series Xs, both positive and
negative
Cs (pF) - Equivalent capacitance for series Xs, both positive and
negative
Lp (?H) - Equivalent inductance for parallel Xp, both positive and
negative
Cp (pF) - Equivalent capacitance for parallel Xp, both positive and
negative
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Re: Nanovna data output: Use the following other FREE software
with antenna or component detailed Analysis.pdf The link is not working
URLs with blanks will be problematic, but that PDF just has 3 more URLs: Zplots.xlsx from AC6LA Rigexpert Sim Smith .. which are already here: /g/nanovna-users/wiki/External-links
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Re: Android NanoVNA WebApp - does not work on version 6x
I have a Samsung S7 Edge actually Android 8.
I did already many test for the nanoVNA with chrome without succes.
I downloaded nanoVNA app it didn't work.
Yesterday I used a normal OTG cable instead of the Samsung micro USB to USB A Stick delivered with the S7 and bingo i could connect and it worked.
--
ON8DC Erik
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Re: Nanovna data output: Use the following other FREE software
On Sat, Nov 2, 2019 at 09:00 PM, Jeff King wrote:
This file shows 3 software programs to get all the information you need
with antenna or component detailed
Analysis.pdf
You can extract:
SWR - Standing Wave Ratio
Rs - Resistance, series form
Xs - Reactance, series form
Zmag - Impedance magnitude
Theta (deg) - Impedance angle
Rho (mag) - Reflection coefficient magnitude
RL (dB) - Return Loss, plotted as a negative number to show "reverse"
scale (see note below)
Phase (deg) - Reflection coefficient angle
% Reflected Power
Q - Quality factor, |Xs| / Rs
Rp - Resistance, parallel form
Xp - Reactance, parallel form
Ls (?H) - Equivalent inductance for series Xs, both positive and negative
Cs (pF) - Equivalent capacitance for series Xs, both positive and negative
Lp (?H) - Equivalent inductance for parallel Xp, both positive and
negative
Cp (pF) - Equivalent capacitance for parallel Xp, both positive and
negative
The link is not working
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Re: 50ohm cal load failed
Well, my HP was calibrated decades ago before I retired. and like you say
for fun stuff it is good enough. I prefer to roll my own now. Close
enough is good for me.
Mel, K6KBE
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On Sat, Nov 2, 2019 at 12:57 PM hwalker <herbwalker2476@...> wrote: On Sat, Nov 2, 2019 at 10:46 AM, Mel Farrer, K6KBE wrote:
I have a set of SS SMA PCB mount male connectors that I soldered 4 200
ohms
0603 resistors around the clock, 12,3,6,9 and it measures very close to my
HP SMA termination.
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Mel,
I used a commercially made HP 50 ohm termination as my standard until
David Taylor pointed out that even though it was manufactured by HP its
s-parameter specs were lukewarm at best. My S11 measurements on known
devices were slightly off, but that was because my NanoVNA OSL calibration
was made with a load that was slightly off. Changing to a Mini-Circuits 50
ohm load with known s-parameter specs up to 18 GHz solved the problem. To
my point, what you have observed may not reflect accuracy unless your HP
termination is well characterized.
Of course if you are just using the NanoVNA in a hobbyist environment
where measurements within 5 - 10% are acceptable, then pretty much any 50
ohm load or termination assembled using good rf techniques should do.
- Herb
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Dick
Oristo