Hi Run I did not realize before now you bought a nonoVNA ? Kind regards Kurt -----Oprindelig meddelelse----- Fra: [email protected] < [email protected]> P? vegne af Ron Sendt: 18. april 2020 03:37 Til: [email protected]Emne: [nanovna-users] Just Bought nanoVNA Hi, I'm Ron WA0RJ. I just ordered a nonoVNA which will arrive in a few days. I'm looking for advice concerning what to install on my laptop to use the device from the computer. Anything else I can do to get ready to become familiar with it will be appreciated. Thanks!
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Hi Run Go to the homepage of Gun thard Kraus and read his excellent document about NanoVNA and the program NanoVNA-saver which is a must to install NanoVNA-saver to find on Just install it even before the NanoVNA arrives and study it You will also find links to other software but the do not "beat" the NanoVNA-saver Kind regards Kurt -----Oprindelig meddelelse----- Fra: [email protected] < [email protected]> P? vegne af Ron Sendt: 18. april 2020 03:37 Til: [email protected]Emne: [nanovna-users] Just Bought nanoVNA Hi, I'm Ron WA0RJ. I just ordered a nonoVNA which will arrive in a few days. I'm looking for advice concerning what to install on my laptop to use the device from the computer. Anything else I can do to get ready to become familiar with it will be appreciated. Thanks!
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I actually prefer the software, although it's true that if I were on the
roof, I'd prefer not to have a computer dangling.
but in the shack, the ability to view and save and "mouse around" the
images, and set different parameters and resweep quickly is nice.
73, Tim KA4LFP
#######
¡°Men who ally themselves with the darkness are selfish and greedy, seeking
power and dominion over others for their own glory, always self-promoting
their own deeds, seeking loyalty and surrounding themselves with sycophants
and denigrating and dismissing those who speak truth to them.
Those qualities are inextricably linked with cowardice and an inability to
trust others. Such men can only lead through lies, bullying, fear,
intimidation, and deception. Thus, ultimately their followers, hangers-on,
and their allies always inevitably betray them, as such men also blame
their followers, because they are selfish and greedy themselves.
"
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On Fri, Apr 17, 2020, 9:59 PM Ron <rkjewett@...> wrote:
Thanks, Bob!
BTW, my laptop is Windows 7
--
Ron
WA0RJ
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I just got a new Nano VNA and I see stuff on YouTube but I'm not sure where to start. Later Don va7dgp/va7qu On Fri., Apr. 17, 2020, 7:05 p.m. Bob Albert via groups.io <bob91343= [email protected]> wrote: I think the software runs on most Windows iterations. I think it's
nanosaver. Read the blurb that comes with the unit.
NanoVNASaver | NanoVNA
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NanoVNASaver | NanoVNA
NanoVNASaver is developed by Rune B. Broberg. It is a multiplatform tool
to save Touchstone files from the NanoV...
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Bob K6DDX
On Friday, April 17, 2020, 06:59:07 PM PDT, Ron <
rkjewett@...> wrote:
Thanks, Bob!
BTW, my laptop is Windows 7
--
Ron
WA0RJ
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Re: nanoVNA-H -Strange behavior with YAGI Ant
So who was telling the truth? The nanoVNA or the SWRmeter?
If the driven element was 2 cm too long, then the nanoVNA was right when it said that resonance was at 142 MHz?
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On 4/17/20 7:05 PM, Bob Albert via groups.io wrote: It is a multiplatform tool to save Touchstone files from the NanoV...
| ???? And so much more!? It also allows you to do sweeps with as many points as you like, as opposed to the 101 point limit on a standalone NanoVNA.
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I think the software runs on most Windows iterations.? I think it's nanosaver.? Read the blurb that comes with the unit.
NanoVNASaver | NanoVNA
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NanoVNASaver | NanoVNA
NanoVNASaver is developed by Rune B. Broberg. It is a multiplatform tool to save Touchstone files from the NanoV...
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Bob K6DDX
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On Friday, April 17, 2020, 06:59:07 PM PDT, Ron <rkjewett@...> wrote:
Thanks, Bob!
BTW, my laptop is Windows 7
--
Ron
WA0RJ
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Thanks, Bob!
BTW, my laptop is Windows 7
--
Ron
WA0RJ
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I started with a program called nanoSaver or similar name.? But then I decided I'd rather use the nano by itself.? The display isn't that small and it's a lot nicer not having a cord dangling.
Bob K6DDX
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On Friday, April 17, 2020, 06:41:38 PM PDT, Ron <rkjewett@...> wrote:
Hi, I'm Ron WA0RJ.
I just ordered a nonoVNA which will arrive in a few days. I'm looking for advice concerning what to install on my laptop to use the device from the computer. Anything else I can do to get ready to become familiar with it will be appreciated.
Thanks!
|
Hi, I'm Ron WA0RJ.
I just ordered a nonoVNA which will arrive in a few days. I'm looking for advice concerning what to install on my laptop to use the device from the computer. Anything else I can do to get ready to become familiar with it will be appreciated.
Thanks!
|
Re: Question about Calibration document
Hello Al,
Yes, the procedure that is created in that document is based on calibration of the 2 channel, port 0 and port 1, with the supplied coaxial cables. Yes, the calibration pieces are attached at the end of the cables. Namely short, open and as you noted the kit has but one 50 ohm termination. Completion of the S21 cal requires the two cables to be connected together and so a female - female thru adapter is required. On the isolation, the intent is to minimize radiation or cross talk from CH0 to CH1 when the ISOL key is pressed. For the most part if you leave port 0 (CH0) terminated in 50 ohm and leave CH1 cable end open; I think that will be fine. You might dress the CH1 cable end at least far apart from CH0 cable end, again to minimize stray signal coupling during the ISOL cal process. The whole intent of all this is an attempt to minimize the noise floor present after calibration and maximize the device dynamic range.
Alan
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Try 3.5 e6
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On Fri, Apr 17, 2020, 4:44 PM CT2FZI <ct2fzi@...> wrote: Hi,
M for Megahertz
m mil hertz
*73 de Lu¨ªs, CT2FZI*
*QRV @ 145.300 MHz | **CQ0VMST (VHF REP Monsanto)*
<>
<>
On Fri, 17 Apr 2020 at 21:08, Robert Malsbury <rmalsbury50@...>
wrote:
Has anyone noticed when you enter "m' or "M" for the start frequency, you
will get different results? I don't quite know what I am getting when I use
a lowercase m.
Bob M
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Re: Getting started with the nanoVNA guide
I have found it:
And you have a part 3... Cheers!
LL
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Re: Getting started with the nanoVNA guide
Hello :)
What about part 2?
Cheers.
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Re: Use NanoVNA to Evaluate Unlabeled Toroids?
Hello,
I think this might be a good idea to measure common-mode chokes:
[image: image.png]
" The VNA is first calibrated with the two clips shorted. Then the choke is
connected between the clips, and a VNA measurement scan made between the
required frequencies. The resulting S21 Amplitude and Phase data is then
transferred to a spreadsheet
<> to calculate the
choke's complex impedance. The derivation of the choke's complex impedance
from S21 Amplitude and Phase is explained in this note
<>. "
Do you know if the NanoVNA-Saver able to calculate this Complex Impedance?
Cheers
*73 de Lu¨ªs, CT2FZI*
*QRV @ 145.300 MHz | **CQ0VMST (VHF REP Monsanto)*
<>
<>
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On Thu, 16 Apr 2020 at 14:43, WB2UAQ <pschuch@...> wrote: A starting point for determining if a given unknown toroid will be any
good for a balun or HF transformer is to wind one or two turns on it and
measure the Z of this winding in S11 (ch0 after an OSL cal). If the
magnitude of the impedance, Z is 40 or 50 ohms, keep going and wind maybe 6
or 8 evenly spaced turns on it. If the core is the high permeability type
like 77 material, it will go thru self resonance at a very low freq and
even close to 1 MHz. If the Z goes up to say maybe 1000 ohms or more, at
say 10 MHz, it is probably a good one for HF baluns. This is just a
bare-bones suggestion but one that I have used successfully for years. At
low frequencies the bottom end of the Nano's range, 50 kHz, with the 6 or 8
turns applied to the core, calculate the inductance index, AsubL.
(measured inductance divided by 36 or 64). The result is in nanohenries
per turns squared. With this AsubL in n/T^2 and the physical dimensions
of the core I have been very successful determining the actual p/n of the
core on Fair-Rite Products website. It is handy if you get cores mixed-up
on the bench! Many look very much the same.....dark gray:)
You should use the lowest freq possible because the permeability will
remain very close to the published spec down there plus the impedance is
all inductance (high Q).
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Hi,
M for Megahertz
m mil hertz
*73 de Lu¨ªs, CT2FZI*
*QRV @ 145.300 MHz | **CQ0VMST (VHF REP Monsanto)*
<>
<>
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Show quoted text
On Fri, 17 Apr 2020 at 21:08, Robert Malsbury <rmalsbury50@...> wrote: Has anyone noticed when you enter "m' or "M" for the start frequency, you
will get different results? I don't quite know what I am getting when I use
a lowercase m.
Bob M
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Has anyone noticed when you enter "m' or "M" for the start frequency, you will get different results? I don't quite know what I am getting when I use a lowercase m.
Bob M
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Re: Question about Calibration document
Al,
I think the assumption in the document is that the calibration is being done at the end of the cables, rather than at the NanoVNA connectors. Assuming a male-male cable, you need the F-F adapter to connect the male load and short at the end of the cable. In any case, you can use a relatively poor terminator at CH1 for the isolation step without much worry.
--John Gord
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On Fri, Apr 17, 2020 at 04:59 AM, Al Holt wrote:
Hello from a new NanoVNA user!
Reading over the most recent calibration document found in the 'Files'
section,
/g/nanovna-users/files/NanoVNA%20Calibration%20Considerations%20and%20Procedure_v1.1.pdf,
there seems to be some conflicting information.
Note 3 states, ".....A second SMA-Male 50 ohm termination and
female-to-female adapter will further simplify the procedure......."
Further down the document, Note 13 states: "....Place 50 ohm SMA-Male
terminators on the ends of BOTH CH0 and CH1 cables. This will
require a second 50 ohm terminator and a second F-F adapter."
ATM, I don't have the second SMA terminator and just substituting a 50 Ohm BNC
terminator via SMA-to-BNC adapter knowing I will have compromised the
calibration routine, and plan to purchase the proper kit soon.
But, wouldn't it be good to have Note 3 reading something to the effect one
should procure a second terminator and F-F barrel? Also, what is meant by
'simplify the procedure?'
The NanoVNA-H I have is a fantastic tool, I'm really impressed with its
capabilities and the price-to-performance ratio!
Thanks!!
--Al
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Re: Latest firmware for -F model
Thanks Mohammed :-)
Larry, K4MLA
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On 4/17/2020 1:59 AM, hommadi2001@... wrote: Hello Larry,
The -f version has its own group where they publish new firmwares.
/g/nanovna-f
Best Regards,
Mohammed.
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Question about Calibration document
Hello from a new NanoVNA user! Reading over the most recent calibration document found in the 'Files' section, /g/nanovna-users/files/NanoVNA%20Calibration%20Considerations%20and%20Procedure_v1.1.pdf, there seems to be some conflicting information. Note 3 states, ".....A second SMA-Male 50 ohm termination and female-to-female adapter will further simplify the procedure......." Further down the document, Note 13 states: "....Place 50 ohm SMA-Male terminators on the ends of BOTH CH0 and CH1 cables. This will require a second 50 ohm terminator and a second F-F adapter." ATM, I don't have the second SMA terminator and just substituting a 50 Ohm BNC terminator via SMA-to-BNC adapter knowing I will have compromised the calibration routine, and plan to purchase the proper kit soon. But, wouldn't it be good to have Note 3 reading something to the effect one should procure a second terminator and F-F barrel? Also, what is meant by 'simplify the procedure?' The NanoVNA-H I have is a fantastic tool, I'm really impressed with its capabilities and the price-to-performance ratio! Thanks!! --Al
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Kurt Poulsen
Don Poaps
Jim Allyn - N7JA
CT2FZI
Robert Malsbury