I think I have killed another NanoVNA :(
It appears I may have killed my 2nd NanoVNA. Last time, I let the battery voltage drop too low, and in my effort to repair, I managed to snap some of the connectors off.
This time, I had a display show until I plugged the charger in, now the panel lights but no text.
I have left it on charge, and the wee red light is blinking. Pull the plug out, no sign of a blue light. I hear the startup sound and can see the panel light, but nothing on the display.
I will leave it to charge overnight, just in case it is a voltage issue.
Any ideas?
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A suggestion for this routine.
Ask if the DUT is active or passive?
If the device is passive and S21 is
available then...
Ask shall passivity be enforced?
After enforcement of passivity is checked, see
if the results pass a sanity check.
If the cal is not too bad, this may
shed a clue on where the issue lies.
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t's OK now.
Yes I even had a lot of .s1p files in the directory. So, you gave me the idea to modify one so that there is an |S11| > 1 in
And yes S11.EXE spotted it.
---------------------- ------------------
This program checks Touchstone files
for |S11| > 1. These improper values
may indicate invalid VNA calibration.
File |S11| max # > 1
Test.s1p 1.318561271 1
---------------------- ------------------
In fact S11.EXE seems to test all the *.s1p files present in the directory. It still lacks at least one piece of information produced by
S11.exe -? (for example)
I use many reels I had never encountered such behavior before.
As my files were correct, it came out the very ambiguous message:
---------------------- ------------------
This program checks Touchstone files
for |S11| > 1. These improper values
may indicate invalid VNA calibration.
No files found with |S11| > 1
---------------------- ------------------
This S11.exe does not solve the problems of erratic dots produced by the nanoVNA that nanovna-saver does not filter. We are missing two apps
1/ one, fundamental, which corrects the .cal files to purge/correct them of their aberrant measurements. On this subject no one has proposed a relevant algorithm. Encode, then the application is simpler.
2/ the other which corrects outliers in the .s1p files. It's less serious because you can restart a measurement sequence that will perhaps be faultless.
--
F1AMM (Fran?ois)
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-----Message d'origine----- De la part de Arie Kleingeld PA3A 14:08
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Doe you have any s1p files in the same directory as s11 exe?
how about???? s11.exe testfile.s1p???? as a syntax?
Or just s11.exe?? and the directory contains s1p files, that seems logical.
Arie
Op 28-8-2022 om 13:18 schreef F1AMM:
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OK; I understood what it could be used for. What I didn't understand is how S11.EXE is used (its syntax).
S11 -? returns nothing
S11 /? returns nothing
S11 returns in a window
This program checks Touchstone files
for |S11| > 1. These improper values
may indicate invalid VNA calibration.
No files found with |S11| > 1
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OK; I understood what it could be used for. What I didn't understand is how S11.EXE is used (its syntax).
S11 -? returns nothing
S11 /? returns nothing
S11 returns in a window
This program checks Touchstone files
for |S11| > 1. These improper values
may indicate invalid VNA calibration.
No files found with |S11| > 1
--
F1AMM (Fran?ois)
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Everyone did , because you subcribed
Op zo 28 aug. 2022 07:59 schreef F1AMM <18471@...>:
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Hello
I received this email
The following files and folders have been uploaded to the Files area of the [email protected] group.
* /S11.EXE ( /g/nanovna-users/files/S11.EXE )
*By:* Brian Beezley <k6sti@...>
*Description:*
This Windows program checks Touchstone files for |S11| > 1. These improper
values may indicate invalid VNA calibration.
I downloaded this S11.EXE from the given page. Origin: Group Notification
<noreply@...>
I don't know how we can discuss this application (noreply). I don't even
understand the usage. The following message is displayed:
s11 tmp.s1p
This program checks Touchstone files
for |S11| > 1. These improper values
may indicate invalid VNA calibration.
No files found with |S11| > 1
--
F1AMM (Fran?ois)
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the usage:
in an S1P file, or part of columns of a S2P file (where S11 is also incorporated),? the reflection coefficient is reported.
By definition the coefficient can never be >1.
There's something wrong if there's a value >1.
Cause can be a faulty VNA or bad calibration.
73
Arie PA3A
Op 28-8-2022 om 07:59 schreef F1AMM:
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Hello
I received this email
The following files and folders have been uploaded to the Files area of the [email protected] group. * /S11.EXE ( /g/nanovna-users/files/S11.EXE )
*By:* Brian Beezley <k6sti@...>
*Description:*
This Windows program checks Touchstone files for |S11| > 1. These improper values may indicate invalid VNA calibration.
I downloaded this S11.EXE from the given page. Origin: Group Notification <noreply@...>
I don't know how we can discuss this application (noreply). I don't even understand the usage. The following message is displayed:
s11 tmp.s1p
This program checks Touchstone files
for |S11| > 1. These improper values
may indicate invalid VNA calibration.
No files found with |S11| > 1
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On 28/08/2022 05:13, Khalid Ibne Masood Khalid wrote: Hello Roger and Larry,
Thanks everyone for your support and information. I really appreciate your help.
Roger,
Yes, I have LiteVNA64, however, I am looking for higher frequency
range, and this is the only one that can go beyond 7 GHz. Do you know
any other VNA that can go to at least 7 GHz with the nanovna protocol?
Thanks again.
Khalid Khalid, Depending on your requirements, you could look at using a Pluto with Satsagen with the third harmonic option. It's not vector, though. It has its own software. David -- SatSignal Software - Quality software for you Web: Email: david-taylor@... Twitter: @gm8arv
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Hello I received this email The following files and folders have been uploaded to the Files area of the [email protected] group. * /S11.EXE ( /g/nanovna-users/files/S11.EXE ) *By:* Brian Beezley <k6sti@...> *Description:* This Windows program checks Touchstone files for |S11| > 1. These improper values may indicate invalid VNA calibration. I downloaded this S11.EXE from the given page. Origin: Group Notification <noreply@...> I don't know how we can discuss this application (noreply). I don't even understand the usage. The following message is displayed: s11 tmp.s1p This program checks Touchstone files for |S11| > 1. These improper values may indicate invalid VNA calibration. No files found with |S11| > 1 -- F1AMM (Fran?ois)
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Hello Roger and Larry,
Thanks everyone for your support and information. I really appreciate your help.
Roger,
Yes, I have LiteVNA64, however, I am looking for higher frequency
range, and this is the only one that can go beyond 7 GHz. Do you know
any other VNA that can go to at least 7 GHz with the nanovna protocol?
Thanks again.
Khalid
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NanoVNA-App allow select receive calibrated and not calibrated data
H/H4 devices by default send calibrated data (this mode for old software)
V2/Lite by default send not calibrated data
Not shure, but Saver receive data in default mode
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I thought that but wanted to be sure, thanks!
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it does not mess up cause in the app only apps calibration is used and in the device only devices calib is used
they do not interact cause the device (even if calibrated) sends raw data over usb
dg9bfc sigi
Am 27.08.2022 um 03:35 schrieb GMRS_two_way_radio via groups.io:
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Also, is it best to not calibrate the nanovna itself and just have the raw data out because a person would be using the nanovna.app to calibrate? I would assume if you calibrate the nanvna AND the nanovna.app that would mess up the calibrations?
Yes you are right, I haven't heard anything back on the other forum after i posted my question :(
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On Fri, Aug 26, 2022 at 06:35 PM, GMRS_two_way_radio wrote:
is it best to not calibrate the nanovna itself and just have the raw data out
because a person would be using the nanovna.app to calibrate?
Why not try and share your learnings? -- NanoVNA Wiki: /g/nanovna-users/wiki/homeNanoVNA Files: /g/nanovna-users/filesErik, PD0EK
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With all the nanovna.app version mod by other people, is there a website that tells what is the difference in them?
Thanks
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On Fri, Aug 26, 2022 at 05:20 PM, Goebel, Klaus wrote:
I use the NanoVNA-App v1.1.209 (build by Owen Duffy) together with a NanoVNA
V2Plus4 running the current DiSlord firmware (v1.3.07, see first screenshot).
I noticed that coloured screenshots look strange (see second screenshot). Is
there a workaround for this?
I think this hardware LCD module problem, my LCD on V2Plus4 also have artefacts on screenshots, i replace module, and after this all ok. I can`t solve this by software (i think use different LCD driver, and i don`t know how init it). This module on other device also have this problems.
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Also, is it best to not calibrate the nanovna itself and just have the raw data out because a person would be using the nanovna.app to calibrate? I would assume if you calibrate the nanvna AND the nanovna.app that would mess up the calibrations?
Yes you are right, I haven't heard anything back on the other forum after i posted my question :(
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I use the NanoVNA-App v1.1.209 (build by Owen Duffy) together with a NanoVNA V2Plus4 running the current DiSlord firmware (v1.3.07, see first screenshot). I noticed that coloured screenshots look strange (see second screenshot). Is there a workaround for this?
Klaus
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I had no problem flashing the current DiSlord firmware (v1.3.07, see attached screenshot) onto my V2Plus4 (from the first series of devices sold by nanoRFW) using NanoVNA-App v1.1.209 (build by Owen Duffy). However, I have noticed that coloured screenshots taken with the NanoVNA-App look strange (see attached screenshot).
Klaus
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The following files and folders have been uploaded to the Files area of the [email protected] group. * /S11.EXE ( /g/nanovna-users/files/S11.EXE ) *By:* Brian Beezley <k6sti@...> *Description:* This Windows program checks Touchstone files for |S11| > 1. These improper values may indicate invalid VNA calibration.
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Arie Kleingeld PA3A
David J Taylor
