Re: New version of NanoVNA-Saver: 0.2.1
Hi Rudi The ZPlots has facilities as mentioned before to calculate Z0 as function of Frequency base on measurement of an open and shorted cable. Here is the result for the 33cm cable we are discussing. As you see there is interesting "bumps" along the frequency axe due to switching to harmonic modes for the NanoVNA Kind regards Kurt -----Oprindelig meddelelse----- Fra: [email protected] < [email protected]> P? vegne af reuterr@... Sendt: 7. december 2019 19:19 Til: [email protected]Emne: Re: [nanovna-users] New version of NanoVNA-Saver: 0.2.1 On Sat, Dec 7, 2019 at 03:54 PM, Kurt Poulsen wrote:
Regarding the impedance issue i did look at the phase oscillation from
0.5 to 500MHz when I in the ZPLots has subtracted the length where the
Phase approaches a straight line with oscillations. Then I change the
ZO on either side off 50 ohm in steps of 0.1 ohm and for 51.4 ohm the
phase oscillation was minimized. The return loss oscillation is not
changed by changing the Z0 but rather due to port mismatch.
Hello Kurt, Thank you very much for your quick answer. I have 3 questions: 1. Where did you subtract the length (20 cm) ? 2. Did you mean that the S11 phase oscillation curve (about sinus) horizontal center line should be minimised to a straight line and not be bowed? 3. Did you mean with the change of Z0 to connect a resistor of 50 Ohm at the end of the 22 cm coax cable? And then vary this resistor in 0.1 Ohm steps to minimise the amplitude of the phase oscillation amplitude? I mean your file "NanoVNA supplied cable 50K to 500MHz.png" in post 7877 at 2019-12-05 20:10. In this screen shot there are 2 diagrams with S11 Phase. When I try to get a similar diagram with a 30 cm RG174 coax cable with open end I get see attached screen shot nanoVNA-saver_RG174-30cm-open-end.png 73, Rudi DL5FA
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seems like its dooable then,imworking on making a milled aluminium case for it so the mechanical stuff isnt an issue,was more concerned about the frequency responce,im only going to use it upto 70cms.
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Hi Paul, if N is an alternative for you: N provides much better accurate quality for higher frequencies than BNC. See pics: The (slightly hot air bent) extended PE board permits hand isolation: Often a suitable balun for avoiding body ground errors is not needed. 73, Hans DJ7BA -----Urspr¨¹ngliche Nachricht----- Von: [email protected] < [email protected]> Im Auftrag von paul larner Gesendet: Sonntag, 8. Dezember 2019 09:30 An: [email protected]Betreff: [nanovna-users] connector swap hi all im thinking of changing from sma to bnc connectors on my vna,maybe mounted on an extender board hooked up to the vna with some small coax,is there any issues with doing this as regards acuracy etc,i assume using 50 ohm coax and re calibrating it should be ok?,any idea?.,cheers M3vuv.
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What Linux distribution are you using?
As Nick said, if you follow the installation instructions, the program installs without a problem on Linux Mint 19.2 and works just fine.
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On Sun, Dec 8, 2019 at 09:32 AM, paul larner wrote:
only half an answer as per i see!!,why do ppl bother if only answering half
the original question?,beggars belife so many folks on forums do this or go
off on a tangent!!,just my thoughts! 73 m3vuv
And your badly written, ungrammatical "thoughts" are not an answer at all! If you have nothing useful to say, please avoid posting noise.
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Re: New version of NanoVNA-Saver: 0.2.1
Thanks for the tip Softmaker freeoffice.
It has a full visual basic compatibilty with free version? No:
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On Sun, Dec 8, 2019 at 01:53 AM, Ray, W4BYG wrote:
Just received my new NanoVNA and beginning to learn how to use it.? I
have read the "user guide" but it is not much help with my problems:
After I set the menu settings for display, frequency, etc., and start
trying to use it, I am having trouble moving the markers to where I want
them on the trace.
As I go to touch a marker to move it where I want it, the menu comes up
automatically on the right and the marker doesn't move. I close the menu
and try again with the same result.? Repeated attempts will eventually
allow me to move the marker, but it is still problematic.
If you want to move a marker, put your finger or stylus on the trace, and without lifting it, drag left or right. The important bit being "without lifting it". If you lift your finger or stylus, you make a tap instead and that brings up the menu.
What am I doing wrong or missing?
Also, is there a setting where I can tell it to boot back up to my last
screen settings, instead of the factory default out to 900 MHz?? This
would allow saving the battery when I have to be make extended changes
to an antenna and not have to reprogram everything again.
If you save your current calibration and range selection to slot 0, it will be loaded when you power on. If you don't want to save to slot 0, save it to another slot and load from that slot via the menu after powering up. The slots save more than just the calibration settings. Additionally: Is there software for use with a Win 7 or Win 10 PC and
for Android? See the files section of the group.
Your assistance would be appreciated.
Ray, W4BYG
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1. Is there a newer version of the VNA Saver software?
3. I am not sure of my NanoVNA firmware but I think it is QRP 0.4.3. Is
there newer firmware? To check for newer offerings, I go to /g/nanovna-users/wiki.. then search for software .. then firmware
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Hi Bob - it's just data I need to get Unmodified ST-LINK lacks support for communicating with firmware
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Why not? But i dont think they wil fit or the case wil be a lot
thinker,maybe if you make a printable box around it
Op zo 8 dec. 2019 09:30 schreef paul larner <quadzillatech@...>:
toggle quoted message
Show quoted text
hi all im thinking of changing from sma to bnc connectors on my vna,maybe
mounted on an extender board hooked up to the vna with some small coax,is
there any issues with doing this as regards acuracy etc,i assume using 50
ohm coax and re calibrating it should be ok?,any idea?.,cheers M3vuv.
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Re: Installing NanoVna-Saver : First Time Problems/Fixes
seems to me the vna saver is iffy,i get a smith chart with only the trace displayed ie none of the circle markings,its like the trace is in thin air,any ideas?,on my lappy the creed display just jitters all over,mentioned this a few times but lagley seems to be ignorred!
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only half an answer as per i see!!,why do ppl bother if only answering half the original question?,beggars belife so many folks on forums do this or go off on a tangent!!,just my thoughts! 73 m3vuv
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hi all im thinking of changing from sma to bnc connectors on my vna,maybe mounted on an extender board hooked up to the vna with some small coax,is there any issues with doing this as regards acuracy etc,i assume using 50 ohm coax and re calibrating it should be ok?,any idea?.,cheers M3vuv.
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Re: New version of NanoVNA-Saver: 0.2.1
Hi Larry,
Thanks for the tip Softmaker freeoffice. It has a full visual basic compatibilty with free version? Zplots not work on older excel, libre office and openoffice. Currently write reply from my phone, i will test later.
73,
Lajos
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NanoVNA Saver software version 0.2.1 TDR operation
I have one more question regarding the NanoVNA Saver software
In the TDR display there are two traces, One Red and one blue. I understand
the red but not the blue. Would some please give me an explanation of the
blue trace?
I appreciate any responses.
*Clyde K. Spencer*
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I have one more question regarding the NanoVNA Saver software In the TDR display there are two traces, One Red and one blue. I understand the red but not the blue. Would some please give me an explanation of the blue trace? I appreciate any responses. *Clyde K. Spencer* On Sat, Dec 7, 2019 at 11:37 PM Clyde Spencer via Groups.Io <cftr01b= [email protected]> wrote: Good evening all,
I have the VNA Saver 0.2.1 software. I like the features and the operation
is somewhat intuitive. I do have a couple questions.
1. Is there a newer version of the VNA Saver software?
2. Reading the user manual posted here It references using the "REAL" mode
when looking at the TDR function. I seem to not be able to find that. I
would really like to get thisworking
3. I am not sure of my NanoVNA firmware but I think it is QRP 0.4.3. Is
there newer firmware?
I appreciate all that respond,
Clyde KD8AN
*Clyde K. Spencer*
On Fri, Dec 6, 2019 at 5:44 AM Gyula Molnar <gyula.ha3hz@...> wrote:
Hi Larry,
I'm glad that many people have noticed what the original author wrote in
the "Know issues" section of the NanoVNA alpha1 kit assembly manual.
I think the same way, thank you for trying to confirm that I'm not trying
in vain.
73, Gyula
On Fri, Dec 6, 2019 at 12:14 AM, Larry Rothman wrote:
Good to know, Bob.
I had suggested to the devs to use 2 LiPo s with a linear 5v Reg to run
the
unit in order to reduce RFI from that charger/inverter chip.
Banggood has a 2S charging board for about $2 that you run off of an 8 to 12v
source. I'm going to look at that setup soon in addition to modding the
bridge and freq source circuits per the discussion on Hugen's GitHub repo.
CheersLarry
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Good evening all,
I have the VNA Saver 0.2.1 software. I like the features and the operation
is somewhat intuitive. I do have a couple questions.
1. Is there a newer version of the VNA Saver software?
2. Reading the user manual posted here It references using the "REAL" mode
when looking at the TDR function. I seem to not be able to find that. I
would really like to get thisworking
3. I am not sure of my NanoVNA firmware but I think it is QRP 0.4.3. Is
there newer firmware?
I appreciate all that respond,
Clyde KD8AN
*Clyde K. Spencer*
toggle quoted message
Show quoted text
On Fri, Dec 6, 2019 at 5:44 AM Gyula Molnar <gyula.ha3hz@...> wrote: Hi Larry,
I'm glad that many people have noticed what the original author wrote in
the "Know issues" section of the NanoVNA alpha1 kit assembly manual.
I think the same way, thank you for trying to confirm that I'm not trying
in vain.
73, Gyula
On Fri, Dec 6, 2019 at 12:14 AM, Larry Rothman wrote:
Good to know, Bob.
I had suggested to the devs to use 2 LiPo s with a linear 5v Reg to run
the
unit in order to reduce RFI from that charger/inverter chip.
Banggood has a 2S charging board for about $2 that you run off of an 8 to 12v
source. I'm going to look at that setup soon in addition to modding the
bridge and freq source circuits per the discussion on Hugen's GitHub repo.
CheersLarry
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Sorry Bob but the stlink won't charge the battery as it's connected to the 3v side of the regulator that runs the micro.?
On Sat, 7 Dec 2019 at 10:25 PM, Bob Albert via Groups.Io<bob91343@...> wrote: So I just hold it in place and can charge the battery via the ST-LINK?? I don't care about programming at this point but I would like connectivity to a computer.? Holding it in place is another story.? I already have charging capability so it's just data I need to get.
Bob
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Show quoted text
On Saturday, December 7, 2019, 02:49:01 AM PST, Gyula Molnar <gyula.ha3hz@...> wrote:
The picture below shows the ST-Link V2 connector to be routed to a pin row. When you use it with one of your fingers, you gently press it when you are programming. No need to solder.
This was the first time I needed this and it worked right away.
The RST cable is not needed here.
73, Gyula HA3HZ
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Don't move the marker by touching it.? Use, instead, the multipurpose rocker control at the top.? Rocking it one way or the other will move the marker in use.? To change markers you go to the menu.
toggle quoted message
Show quoted text
On Saturday, December 7, 2019, 04:53:21 PM PST, Ray, W4BYG <w4byg@...> wrote:
Just received my new NanoVNA and beginning to learn how to use it.? I
have read the "user guide" but it is not much help with my problems:
After I set the menu settings for display, frequency, etc., and start
trying to use it, I am having trouble moving the markers to where I want
them on the trace.
As I go to touch a marker to move it where I want it, the menu comes up
automatically on the right and the marker doesn't move. I close the menu
and try again with the same result.? Repeated attempts will eventually
allow me to move the marker, but it is still problematic.
What am I doing wrong or missing?
Also, is there a setting where I can tell it to boot back up to my last
screen settings, instead of the factory default out to 900 MHz?? This
would allow saving the battery when I have to be make extended changes
to an antenna and not have to reprogram everything again.
Additionally: Is there software for use with a Win 7 or Win 10 PC and
for Android?
Your assistance would be appreciated.
Ray, W4BYG
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Kurt Poulsen
Oristo
grizewald