Re: Newbie NanoVNA question regarding calibration
I know about several problems in 450-480MHz range.
Try calibrate in 300-600MHz, but measure in 460-470MHz
PS on screenshot i see you use NanoVNA-App calibration mode (so you calibrate in it?)
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Re: Newbie NanoVNA question regarding calibration
Actually I started with Slackware 1.0 but moved to RH 2.0. Been a long time ago, my memory may be off on the date.
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Re: Newbie NanoVNA question regarding calibration
Yes, I re-did the calibration on nanovna itself as well as in the App.
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works fine here
dg9bfc sigi
Am 26.08.2022 um 12:32 schrieb Goebel, Klaus:
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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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Re: Newbie NanoVNA question regarding calibration
You recalibrate device after?
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Re: Newbie NanoVNA question regarding calibration
Linux was released in 1991, RH came a few years later.
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On Tue, 30 Aug 2022 at 03:44, TE Dukes <tdukes@...> wrote: Thanks for the info. Never been one to go with the latest and the
greatest. Been running RedHat Linux since about 1991. I always go with
'stable'.
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Re: Newbie NanoVNA question regarding calibration
Thanks for the info. Never been one to go with the latest and the greatest. Been running RedHat Linux since about 1991. I always go with 'stable'.
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-----Original Message----- From: [email protected] < [email protected]> On Behalf Of Siegfried Jackstien Sent: Monday, August 29, 2022 9:31 PM To: [email protected]Subject: Re: [nanovna-users] Newbie NanoVNA question regarding calibration hmm ... as far as i know the version from dislord is more actual (12 days old) and displord also is making new fw fro nanovna v2 (and some other clones,brothers,sisters, cousins) version from oen duffy is 209-od12 ... version from dislord is 210 (mod by dislord) i think that you will have less compatibility problems if you use fw and pc soft from same guy (and if not you have only one person to ask for a change or to write issues in github) greetz sigi dg9bfc ps .. if you want newest fw join the beta test group /g/nanovna-beta-testAm 30.08.2022 um 00:51 schrieb Roger Need via groups.io: On Mon, Aug 29, 2022 at 02:47 PM, Siegfried Jackstien wrote:
1.0.69 for your H4 is outdated
as is nano vna app (displord version 210 is most actual)
you find it here
A-App.exe
I prefer the latest NanoVNA app fork by Owen Duffy. He incorporates some of DiSlord's changes and fixed the "info" parameters so they now work correctly when you hover over the data.
Roger
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Re: Newbie NanoVNA question regarding calibration
What I'm wanting to do is to check a dupexler I have coming in the next week or so to make sure its tuned close the frequencies I requested.
I know this is not the ideal way to do it but I don't have $12K for a Tektronic VNA.
Attached are the pics.
Thanks, really appreciate the help!!
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-----Original Message----- From: [email protected] < [email protected]> On Behalf Of Roger Need via groups.io Sent: Monday, August 29, 2022 8:47 PM To: [email protected]Subject: Re: [nanovna-users] Newbie NanoVNA question regarding calibration On Mon, Aug 29, 2022 at 04:12 PM, TE Dukes wrote: Yes, I did both calibrations.
I just now updated the fw and the app. Its still doing the same. Do
you think my nanovna may be bad? What are you measuring? Try the 50 ohm load and post a screenshot Then connect the two ports with a cable and post a screenshot. Roger
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Re: Newbie NanoVNA question regarding calibration
hmm ... as far as i know the version from dislord is more actual (12 days old) and displord also is making new fw fro nanovna v2 (and some other clones,brothers,sisters, cousins) version from oen duffy is 209-od12 ... version from dislord is 210 (mod by dislord) i think that you will have less compatibility problems if you use fw and pc soft from same guy (and if not you have only one person to ask for a change or to write issues in github) greetz sigi dg9bfc ps .. if you want newest fw join the beta test group /g/nanovna-beta-testAm 30.08.2022 um 00:51 schrieb Roger Need via groups.io:
On Mon, Aug 29, 2022 at 02:47 PM, Siegfried Jackstien wrote:
1.0.69 for your H4 is outdated
as is nano vna app (displord version 210 is most actual)
you find it here
I prefer the latest NanoVNA app fork by Owen Duffy. He incorporates some of DiSlord's changes and fixed the "info" parameters so they now work correctly when you hover over the data.
Roger
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Re: Newbie NanoVNA question regarding calibration
On Mon, Aug 29, 2022 at 04:12 PM, TE Dukes wrote: Yes, I did both calibrations.
I just now updated the fw and the app. Its still doing the same. Do you think
my nanovna may be bad? What are you measuring? Try the 50 ohm load and post a screenshot Then connect the two ports with a cable and post a screenshot. Roger
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Re: Newbie NanoVNA question regarding calibration
Hello,
Yes, I did both calibrations.
I just now updated the fw and the app. Its still doing the same. Do you think my nanovna may be bad?
I have expanded the frequency range to 460Mhz to 470Mhz and the S11 graph is a flat line between my markers where I want to test. With it being off on the 460Mhz end, will that cause a bad reading?
A new screen shot is attached.
Thanks!!
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-----Original Message----- From: [email protected] < [email protected]> On Behalf Of Roger Need via groups.io Sent: Monday, August 29, 2022 6:48 PM To: [email protected]Subject: Re: [nanovna-users] Newbie NanoVNA question regarding calibration Your screenshot shows that you are using calibration in the App and not on the NanoVNA itself. Did you calibrate in the NanoVNA app? If not then you have to calibrate in the app or change the selection to VNA. Roger
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Re: Newbie NanoVNA question regarding calibration
On Mon, Aug 29, 2022 at 02:47 PM, Siegfried Jackstien wrote:
1.0.69 for your H4 is outdated
as is nano vna app (displord version 210 is most actual)
you find it here
I prefer the latest NanoVNA app fork by Owen Duffy. He incorporates some of DiSlord's changes and fixed the "info" parameters so they now work correctly when you hover over the data. Roger
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Re: Newbie NanoVNA question regarding calibration
Awesome!! I did not know they were outdated. I did see the NanoVNA App, but only saw the 1.0.69 version in the files section. Are the fw files in a new location?
Thank you!!
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-----Original Message----- From: [email protected] < [email protected]> On Behalf Of Siegfried Jackstien Sent: Monday, August 29, 2022 5:47 PM To: [email protected]Subject: Re: [nanovna-users] Newbie NanoVNA question regarding calibration 1.0.69 for your H4 is outdated as is nano vna app (displord version 210 is most actual) you find it here and new fw?? i add to this mail :-) hth dg9bfc sigi Am 29.08.2022 um 22:18 schrieb tdukes@...: Hello,
Just got my NanoVNA H4, have upgraded the firmware to DiSlord's v1.0.69 and using the NanoVNA App v1.1.208 by OneOfEleven. Reason for doing so was to be able to get more than 101p.
After going thru the calibration, my S11 line starts out up and down (technical term), then goes to a flat line. Is that normal? Shouldn't it be flat all the way across? Attached is a screen shot to help what I'm trying to say, make better sense.
Thanks!!
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Re: Newbie NanoVNA question regarding calibration
Your screenshot shows that you are using calibration in the App and not on the NanoVNA itself.
Did you calibrate in the NanoVNA app? If not then you have to calibrate in the app or change the selection to VNA.
Roger
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Re: Newbie NanoVNA question regarding calibration
1.0.69 for your H4 is outdated
as is nano vna app (displord version 210 is most actual)
you find it here
and new fw?? i add to this mail :-)
hth
dg9bfc sigi
Am 29.08.2022 um 22:18 schrieb tdukes@...:
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Hello,
Just got my NanoVNA H4, have upgraded the firmware to DiSlord's v1.0.69 and using the NanoVNA App v1.1.208 by OneOfEleven. Reason for doing so was to be able to get more than 101p.
After going thru the calibration, my S11 line starts out up and down (technical term), then goes to a flat line. Is that normal? Shouldn't it be flat all the way across? Attached is a screen shot to help what I'm trying to say, make better sense.
Thanks!!
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Newbie NanoVNA question regarding calibration
Hello,
Just got my NanoVNA H4, have upgraded the firmware to DiSlord's v1.0.69 and using the NanoVNA App v1.1.208 by OneOfEleven. Reason for doing so was to be able to get more than 101p.
After going thru the calibration, my S11 line starts out up and down (technical term), then goes to a flat line. Is that normal? Shouldn't it be flat all the way across? Attached is a screen shot to help what I'm trying to say, make better sense.
Thanks!!
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A comparable tool to S11.exe is now in my NanoVNA toolbox:
The tools are easy to modify because most of them are written in python.
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Re: Unable to connect to serial port on Linux installation.
The problem with that is that on a lot of Linux distros, devices are created by udev at boot, so this will typically revert on restart of the system. The proper solution is to add the user to the group for the tty devices (not sure on this dist - "dialout" on some . . . it can be found via ls -lia /dev/tty<whatever>), and then the fix will be persistent.
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On August 29, 2022 3:55:25 AM CDT, p.pacaud@... wrote: For me : Ubuntu 22.04 nanovna saver 0.2.2
1)plug nanovna
2)in a term
sudo chmod o+rw /dev/ttyACM0
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Sent from my Android device with K-9 Mail. Please excuse my brevity.
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Re: I think I have killed another NanoVNA :(
Hi Tim,
I tried connecting to the NanoVNA using a USB cable, and it seems to work OK. I can do a scan and get the Smith chart to populate. Both NanoVNA-QT / NanoVNA seems to work fine. I am pretty confident that the issue lies with the ribbon cable, or the connectors of the ribbon to the board / LCD, as the LCD lights up, just doesn't display anything on it.
Had a play with it this morning. I took the case off and reseated all of the panel ribbon cables. I tried putting it into dfu (hold down toggle switch while powering on) and rebooted and still the same. I think I have got it into DFU mode, as a drive appeared on my Linux laptop, but "dfu-util -l" shows nothing. I copied the updated firmware over to the disk and rebooted, I now get a different boot sound when starting.
I have just ordered a v2, but would still like to get this working.
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Re: Unable to connect to serial port on Linux installation.
For me : Ubuntu 22.04 nanovna saver 0.2.2
1)plug nanovna
2)in a term
sudo chmod o+rw /dev/ttyACM0
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Roger Need
Ho-Ro