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Re: What does S21 mean in this context?
S21 isn't used in your antenna tuning context. You can turn off this trace to avoid confusion, unless you like the "modern art" it produces on the screen. The USB C port doesn't need to speak "To-Go"
By Dave W6OQ · #14015 ·
Re: Calibration quick one
Answer: YES. When the range changes, calibration must be performed. The number of calibration / measurement points is 101 on the basic unit. 73, Gyula HA3HZ -- *** read more on this site (
By Gyula Molnar · #14014 ·
Re: What does S21 mean in this context?
Your photo shows S21 phase on the display. This is the phase of the (weak) S21 leakage. If you change it to magnitude, you will see the leakage signal strength. When using the VNA as an antenna
By John Gord · #14013 ·
Re: Calibration quick one
Recalibrate. The number of calibration points is limited. w.
By Helmut Wabnig · #14012 ·
Calibration quick one
Hello all, Quick question please. If I calibrate my nano from 1Mhz to 900Mhz and I want to change my frequency to 7Mhz to 71Mhz do i have to calibrate again or is this still in range of the original
By sidebores@... · #14011 ·
Re: What does S21 mean in this context?
Are you aware there is a -F variant specific group? Regarding S21 have you made a SOLT calibration in the frequency range of interest? A ter?a, 2/06/2020, 19:52, <wsanders@...> escreveu:
By CT2FZI · #14010 ·
What does S21 mean in this context?
I am using the NanoVNA-F to tune a 75m mobile antenna (see picture.) There is an interesting pattern on the S21 trace. The VNA has been calibrated only using SOL (short-open-load). I have S21 "capped"
By wsanders@... · #14009 ·
Re: What apps use Touchstone files? #applications
[email protected]> wrote: That's not the whole story. A Touchstone file can store data in other formats too - Y, Z, G or H parameters. However, S parameters is the most common. I would be interested
By Dr. David Kirkby, Kirkby Microwave Ltd · #14008 ·
Re: out of "Presentation on the NanoVNA for the raileigh Radio Society", Now: "False Return Loss Calculations"
Does all of this mean that the RL on the NanoVNA and VNA Saver are wrong and should be positive??Deon
By RandMental · #14007 ·
Re: PC software with "CW" function SOLVED with avvidclif's freq command !
Herb, Thank you for your message and? explanations for use above 300 Mhz. Most of time, i use the VNA from 1.8 to 146 MHz but sometimes until 440 MHz. For this reason, i will follow your
By Rudolf Schaffer · #14006 ·
Re: What apps use Touchstone files? #applications
BTW, I created a guide for nanoVNA users to use QUCS here https://hexandflex.com/2020/01/11/impedance-matching-with-qucs-studio-and-vna/
By HexAndFlex · #14005 ·
Re: What apps use Touchstone files? #applications
QUCS studio has a simulation block that accepts Touchstone files. It's the closest free software to ADS. I suspect you can also load them into the free demo CopperMountain VNA software.
By HexAndFlex · #14004 ·
Re: VNA Calibration Reference Box #calibration
Here are some tips for those that may wish to duplicate this box design which has a front panel size of 92mm x 38mm: - The hole centers for the two end connectors, "L" & "THRU" are 15mm from the ends.
By Tom VA7TA · #14003 ·
Re: Nanovna on Zorin OS
GIT is not recognised by many distros until you install it. Zorin is based on Ubuntu so try: sudo apt install git
By Nigel Gunn, G8IFF/W8IFF <nigel@...> · #14002 ·
Nanovna on Zorin OS
Hi! I am new in Linux and use Zorin OS 15. I tried to install NanoVNA-Saver, but git command is not recognized at terminal. Python is installed. Is there any tutorial available about installing on
By py2mta@... · #14001 ·
Dark Mode
I would like to see a DarkMode version of NanoVNASaver I adjusted the Chart Colors, but there are no options for adjusting the control background colors
By mrfingerle@... · #14000 ·
Re: out of "Presentation on the NanoVNA for the raileigh Radio Society", Now: "False Return Loss Calculations"
Thanks, Alan - wonderful source ! I love it. You made my day! Congrats for having shown this. I can only agree. From it's second very basic formula, (when leaving alone the '(db)',) it is possible to
By DJ7BA · #13999 ·
Re: PC software with "CW" function SOLVED with avvidclif's freq command !
One additional observation: If I pause the sweep and select the CW freq, there is no output until I un-pause the sweep. However, I can then pause the sweep again and the output remains on.
By Larry Rothman · #13998 ·
Re: Where to buy in US and other questions #shielding #buying
Hi Herb, I contacted R&L about buying and shipping a Nanovna-H4 to Canada.They sell the H4 for $60US but they quoted me $30US for USPS shipping to Toronto which sounds way too high. Needless to say, I
By Larry Rothman · #13997 ·
Re: PC software with "CW" function SOLVED with avvidclif's freq command !
Rudi, I don't understand the problem you are having with your nanovna-H. I have a current version of firmware on my nanovna and under the stimulus menu, there is "CW FREQ" The nanovna generates a
By Larry Rothman · #13996 ·