开云体育

Something in the newer versions of Saver is falsely triggering McAfee virus signatures. I tell the quarantine to restore the file, then put it on the list to ignore while scanning.
Some other virus scanners also have problems with it, but some do not.
Stan

Even without MacAfee, my laptop running Windows 11 will always say that any
Ham software I try to install is untrustworthy. I thought it may be because
ham software authors are unable to get the software certified due to low
potential usage compared to other general use software. Same problem occurs
when I try to visit the older and quite popular ham websites as well. All
are blocked by my antivirus, mostly because they are http rather than
https.

73
Jon, VU2JO

On Sun, Mar 23, 2025 at 8:36?PM Steve Withnell via groups.io
<steve.withnell@...> wrote:

I've tried downloading nanoSaver to Win11Pro and McAfee snatches the .exe
into quarantine. I'm using the github download:



I tried using a Win10 machine and nanoSaver runs, but MacAfee wants to
remove a virus.

Anyone got a clue on what is going on?

I've tried downloading nanoSaver to Win11Pro and McAfee snatches the .exe into quarantine. I'm using the github download:



I tried using a Win10 machine and nanoSaver runs, but MacAfee wants to remove a virus.

Anyone got a clue on what is going on?

I just installed it in Kubuntu 24.04 from the repository via Synaptic package monitor with no errors. It executes and comes with the expected screen but I would have to go to the room with the physical machine to test operation and it's past my bedtime...

On Sun, 23 Mar 2025 03:38:18 +0000
"M0CNL via groups.io" <m1cxz.m0cnl@...> wrote:

Try doing a
$ Suso apt-cache search nanovna
See what that shows (if anything) as the naming may be slightly different or not included in your versions repo.

Away from a Debian based machine right now so cannot check the actual name of the package.

Just searched the package repo and it’s there in:
24.04LTS
24.10
And plucky
Called nanovna-saver in all of them

--

73

-Jim
NU0C

Try doing a
$ Suso apt-cache search nanovna
See what that shows (if anything) as the naming may be slightly different or not included in your versions repo.

Away from a Debian based machine right now so cannot check the actual name of the package.

Just searched the package repo and it’s there in:
24.04LTS
24.10
And plucky
Called nanovna-saver in all of them

________________________________
From: [email protected] <[email protected]> on behalf of k6whp via groups.io <k6whp@...>
Sent: Sunday, March 23, 2025 1:39:42 AM
To: [email protected] <[email protected]>
Subject: Re: [nanovna-users] Running NanoVNA Saver (or other software) on Linux

Saw this:

Install Howto
Update the package index:
＄ sudo apt-get update
Install nanovna-saver deb package:
＄ sudo apt-get install nanovna-saver

Did this:
<17:23|~>sudo apt-get update

Got this:
....
Get:67 jammy-security/universe Translation-en [207 kB]
Get:68 jammy-security/universe amd64 DEP-11 Metadata [125 kB]
Get:69 jammy-security/universe amd64 c-n-f Metadata [21.7 kB]
Get:70 jammy-security/multiverse amd64 DEP-11 Metadata [208 B]
Reading package lists... Done
N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository ' vscodium InRelease' doesn't support architecture 'i386'
E: Failed to fetch 403 Forbidden [IP: 79.143.189.67 443]
E: The repository ' focal InRelease' is no longer signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

Did this:
<17:25|~>sudo apt-get install nanovna-saver
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
E: Unable to locate package nanovna-saver
<17:26|~>

Sorry to be lame; what am I missing?

--
William, k6whp
--------------------
"Cheer up, things could get worse. So I cheered up and things got worse."

Yes, it runs under Linux (e.g. on a Raspberry Pi, or for that matter, on MacOS)
You can download the source from the git repo, or I think there’s a package you can apt-get

Saw this:

Install Howto
Update the package index:
＄ sudo apt-get update
Install nanovna-saver deb package:
＄ sudo apt-get install nanovna-saver

Did this:
<17:23|~>sudo apt-get update

Got this:
....
Get:67 jammy-security/universe Translation-en [207 kB]
Get:68 jammy-security/universe amd64 DEP-11 Metadata [125 kB]
Get:69 jammy-security/universe amd64 c-n-f Metadata [21.7 kB]
Get:70 jammy-security/multiverse amd64 DEP-11 Metadata [208 B]
Reading package lists... Done
N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository ' vscodium InRelease' doesn't support architecture 'i386'
E: Failed to fetch 403 Forbidden [IP: 79.143.189.67 443]
E: The repository ' focal InRelease' is no longer signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

Did this:
<17:25|~>sudo apt-get install nanovna-saver
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
E: Unable to locate package nanovna-saver
<17:26|~>

Sorry to be lame; what am I missing?

--
William, k6whp
--------------------
"Cheer up, things could get worse. So I cheered up and things got worse."

Michael L Robinson, KC0TA

“In the beginning of a change the Patriot is a scarce man, and brave, and
hated and scorned. When his cause succeeds, the timid join him, for then it
costs nothing to be a Patriot.” ― Mark Twain

When Tyranny becomes Law, Revolution becomes Duty!






On Sat, Mar 22, 2025 at 6:47?PM k6whp via groups.io <k6whp=
[email protected]> wrote:

Have been searching the threads for this item and am wondering if..

(1) NanoVNA Saver has a port to Linux or can be run under Wine on Linux?
(2) Are there any other NanoVNA software packages that run under Linux?

Thank you in advance.

--
William, k6whp
--------------------
"Cheer up, things could get worse. So I cheered up and things got worse."

Have been searching the threads for this item and am wondering if..

(1) NanoVNA Saver has a port to Linux or can be run under Wine on Linux?
(2) Are there any other NanoVNA software packages that run under Linux?

Thank you in advance.

--
William, k6whp
--------------------
"Cheer up, things could get worse. So I cheered up and things got worse."

OK, yes, I can see that.

Zack

<>
Virus-free.www.avg.com
<>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

On Fri, Mar 21, 2025 at 4:17?PM Team-SIM SIM-Mode via groups.io <sim31_team=
[email protected]> wrote:

Hi Zac
Sorry, Here i meant by coax resonant freq the freq that Give 1/4 lamda
electrical length or zero impedance on smith diagram , coax supposed
without terminaison .
73s

Hi Zac
Sorry, Here i meant by coax resonant freq the freq that Give 1/4 lamda electrical length or zero impedance on smith diagram , coax supposed without terminaison .
73s

Rain gutter: i sometimes use my (horizontal) rain gutter, with its two
vertical downspouts, as an antenna, at low power such as for WSPR. I feed
it with a 9:1 balun (for 20 meters) and with a 1:1 balun (with an added L-C
match) for 40 meters. Inside the apartment is a 10-meter-long radial on the
floor.

It's not my best antenna of course but it works somewhat, especially on
20-meter WSPR.

I used the nanoVNA to check it out. Also SimNEC. ... On 14 MHz and higher
(HF) with the 9:1 it is fine. I use only about 5 watts into it, because the
feedpoint is not bolted to the metal gutter. The wire is wrapped around a
lag bolt which i screw into the tight space between the gutter and the
wooden eaves. Every so often i turn the lag bolt and squirt some oil into
the joint.

I would say it's not much better or worse than my indoor mag loops at 5
watts.

Orrin WN1Z


El vie, 21 mar 2025 a la(s) 12:36?p.m., Barry K3EUI via groups.io
(k3euibarry@...) escribió:

*
*

*
*

* Multi-Band HF Vertical*

*
*

*In an effort to get a VERTICAL ANTENNA up for the 20/17/15/10 meter
bands, I tried setting up a 14 ft vertical antenna*

*made from old aluminum tubing, mounted 3 ft above ground, adjacent to a
20 ft vertical aluminum rain gutter - mounted just inches from it for
close coupling.*

*Set up three radials - two were 13 feet and one was 33 ft. **No
matching of any kind.*

*
*

*Results were surprising as the rain gutter makes this vertical into a
reasonable multi-band vertical for 20/15/10 meters.
*

*Cost was almost nothing.*

*Fed with 50 ft of RG8X and a coax choke at the input to the antenna
terminal.*


*I'll have to try it out this weekend on 20/15/10m digital and see if it
radiates a low-angle DX signal.*

*de k3eui barry*

*
*

*
*

*???? Multi-Band? HF?? Vertical*

*
*

*In an effort to get a?? VERTICAL ANTENNA ? up for the 20/17/15/10 meter bands, I tried setting up a 14 ft vertical antenna*

*made from old aluminum tubing, mounted 3 ft above ground, adjacent to a 20 ft vertical aluminum rain gutter - mounted just inches from it for close coupling.*

*Set up three radials - two were 13 feet and one was 33 ft. **No matching of any kind.*

*
*

*Results were surprising as the rain gutter makes this vertical into a reasonable multi-band vertical for 20/15/10 meters.
*

*Cost was almost nothing.*

*Fed with 50 ft of RG8X and a coax choke at the input to the antenna terminal.*


*I'll have to try it out this weekend on 20/15/10m digital and see if it radiates a low-angle DX signal.*

*de k3eui? barry*

Your coax is only going to have a "resonant frequency" if it is terminated
in a very high SWR or a load with a very high or low impedance, such as an
open or short. If the load is somewhere close to 50 ohms, you aren't going
to see any resonant frequency that is worth any concern.

Zack W9SZ

<>
Virus-free.www.avg.com
<>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

On Fri, Mar 21, 2025 at 6:56?AM Team-SIM SIM-Mode via groups.io <sim31_team=
[email protected]> wrote:

Hi

DiSlord Coax Zc measurement function, already installed on H4 1.2.40
firmware, seems need to measure C0 capacitance @ 100Khz and the f0 first
coax resonance frequency (Hz) and then we calculate Zc = 1/(4 x f0 x c0)
Ohm , I appreciate it a lot.

Can we do some accuracy correction ? indeed diélectric permittivity of
polyethylene diélectric can vary with fréquency , it can decrease slowly up
to -4.5% from 100Khz to 14.1Mhz for example , so we can correct C0 value by
-4.5% and then ZC should be increased by +4.5% to be more accurate @ 14
Mhz Zc measurement .

if our coax has 22.28 metre long with Vp around 83% , the first resonnance
frequency will be around 2.71 Mhz wich still far from 14Mhz and may be
some % error may be done , I prefer to measure the resonnance or
antiresonance the nearest to the 14Mhz and devide by number for correction
to have the more accurate Zc value based on measurement done as near as
possible to the desired frequency ..

What you think about all this view , or DiSlord has already taken in
consideration all this possible corrections .

73's Nizar .

Since you asked what we think - I think this:

For amateur radio use, there is no reason that I know of to have high accuracy in the measurement of cable impedance.
It may be fun for an intellectual exercise, but practically, all we need to know is if the coax is 50-ohm, 75-ohm, 92-ohm, etc., with enough accuracy that we can see that it is a good cable. And DiSlord's current algorithm gives at least this level of accuracy.
We combine that measurement of impedance with a loss measurement and perhaps an electrical and physical length measurement to evaluate a cable's suitability for our purpose.

Even the best coax cables are not 'exact' in their impedance, and in fact, due to manufacturing tolerances, may vary a couple of percentage points of impedance along the length of the cable. A 50-ohm cable that measures 49.1 ohms of impedance is just fine. These variations and minor differences from an 'exact' 50-ohms or 75-ohms make almost no difference in actual use of the cable for any practical purpose. (The VSWR resulting from the difference between 49.1 and 50 ohms is only 1.018:1.)

The 'loss' calculation of the cable is of much more practical use than impedance, since it will determine power delivered to the load, extra loss due to SWR, etc. But even that loss measurement only needs to be 'reasonably' accurate, maybe to 10ths of a dB, for almost any practical amateur radio application. And when building matching stubs with coax, we have to measure the electrical length anyway, which measurement includes any variation due to imperfect impedance. So again, I don't put any value on highly-accurate cable impedance measurements.

Stan KC7XE

for my saa2n i have cal standards with plugs (male connector) .. but i wanted also female (so i can calibrate at cable end with a plug without double female needed)

so i took 3 N sockets .. one with a short .. one with an open .. and third got 2x 100 Ohms SMD resistors in parallel (centre pin shorted on all three to exact same length)

works good to over 3 ghz :-)

dg9bfc sigi

adding a "keyring" to secure them against getting lost

Am 21.03.2025 um 18:21 schrieb W0LEV via groups.io:

QUOTE: ....a DIY fixture can be made using a female SMA connector with its
centre conductor sawn to the same level as the dielectric. .....
***

You can buy such a connector with no need to clip off the tip. They are
known as launchers and instead of the cylindrical tip, contain a short
ribbon connector meant to be directly soldered to a microstrip trace.

Dave - W?LEV

On Fri, Mar 21, 2025 at 7:30?AM biastee via groups.io <biastee=
[email protected]> wrote:

On Mon, Mar 17, 2025 at 03:22 PM, W0LEV wrote:

best "amateur" fixture is to solder cal. standards and test items to the
butt end of an SMA female connector - WITH ABSOLUTELY NO LEADS.

Indeed, the HP16092A is the butt end of an APC-7 connector, with just 3mm
of the centre conductor protruding beyond the insulator. It has an
advertised max freq of 500 MHz.
I agree with Dave that a DIY fixture can be made using a female SMA
connector with its centre conductor sawn to the same level as the
dielectric. Then, a plastic bulldog clip (similar to one in the photo of
the S21 fixture) can be used to clamp the chip component down.
I have measured a 89 nH inductor (6.5 turn, ID2.9mm) using the 1st type of
fixture (fixt s11.jpg). The fixture is calibrated using a 1206 size 50ohm
chip, and a brass shorting bar. Using the nanoVna V2+, the S11 from 10 to
1000 MHz (s11.jpg). The self-resonance is above 1000 MHz. The trace stays
inside the chart. The Q can be calculated from the impedance = R+jX at
different freqs.
According to HP/KS, the VNA has poor accuracy when the S11 trace is near
the perimeter. Hence, I also measured the same inductor using the S21
method in a microstrip fixture (fixt s21.jpg). A plastic bulldog clip is
used to clamp the inductor to the PCB. The fixture is calibrated bridging
the microstrip gap with a brass bar (thru). The measured and modeled S21
points a parasitic cap of 0.16 pF (s21_gra.jpg)

--

*Dave - W?LEV*


--
Dave - W?LEV

On Tue, Mar 18, 2025 at 04:17 PM, ae1th@... wrote:

look in files section, menuand notes by bruce dated 2024, good menu map and
notes

Wanted to add another "thank you" for posting that information. I've had nanoVNAs since they first emerged (2019?), and a ham friend recently gave me one dated from that era. Had never been updated, i.e. I had to dig through my boxes to locate a "grabber" to jumper the BOOT/VDD pins and enter the DFU mode. After I updated it to the latest DisLord firmware I began wondering if someone had compiled a current menu structure, and BINGO, I found it here.

To this day it still staggers me how inexpensive, powerful and useful these tiny nanoVNAs are. When I received my very first one I was so blown away after using it to test some filters that I rushed to order a second one, convinced that it was "too good to be true". Surely there must me some mistake for this capability to be had so cheaply, I thought(!).

Hi

DiSlord Coax Zc measurement function, already installed on H4 1.2.40 firmware, seems need to measure C0 capacitance @ 100Khz and the f0 first coax resonance frequency (Hz) and then we calculate Zc = 1/(4 x f0 x c0) Ohm , I appreciate it a lot.

Can we do some accuracy correction ? indeed diélectric permittivity of polyethylene diélectric can vary with fréquency , it can decrease slowly up to -4.5% from 100Khz to 14.1Mhz for example , so we can correct C0 value by -4.5% and then ZC should be increased by +4.5% to be more accurate @ 14 Mhz Zc measurement .

if our coax has 22.28 metre long with Vp around 83% , the first resonnance frequency will be around 2.71 Mhz wich still far from 14Mhz and may be some % error may be done , I prefer to measure the resonnance or antiresonance the nearest to the 14Mhz and devide by number for correction to have the more accurate Zc value based on measurement done as near as possible to the desired frequency ..

What you think about all this view , or DiSlord has already taken in consideration all this possible corrections .

73's Nizar .

On Fri, Mar 21, 2025 at 12:29 AM, <biastee@...> wrote:

I also measured the same inductor using the S21 method

Please post the .s2p file. I'd like to calculate results using the Y21 method that suppresses stray, shunt capacitance in the test fixture.

Brian