开云体育

As QRP RX already wrote, you need to repeat the calibration with the new reduced span to have 101 calibration points in there.

Forgive me to add something trying to create a simple mental picture of what you are saying. As the nanoVNA has a almost perfect bridge below 300MHz (apart from a phase shift due to transmission line

GIN&PEZ; I have only advanced in my understanding to the extent that I have been able to confirm that the results of complex load measurements using the G-mini equations map virtually 1:1 to those

Probably should add Python to the mix as candidate for your own application development.. Matlab is gold standard for college academics but it is more targeted at nuts and bolts simulations. It is

#82' : On The Two-Port Sine Qua Non Practical Application - Source and Load - REF : 11 December 2019 - /g/nanovna-users/message/8136 Hello, Allow us, please, to announce that we just

Which had portions derived from a Project STM32-SDR which was developed by Charlee Hill W5BAA, John Fisher K5JHF, Milt Cram W8NUE and Dave Miller VE7PKE/VE7HR. The software was released as open

I think the Texas hams Larry is referring to are Milt Cram (W8NUE) and Kees Talen (K5BCQ) who once offered the AQRP Vector Impedance Analyzer kit. The last time I looked that kit was no longer

Hello, This email message is a notification to let you know that the following files have been updated in the Files area of the [email protected] group. * /NanoVNA_Console_Commands_Dec 9-19.pdf

Hello, This email message is a notification to let you know that the following files have been updated in the Files area of the [email protected] group. *

Gary, Indeed, the model is precise, and its uncertainty is only based on uncertainty in the measurement of the 3 calibration standards and (this is not stated in their formula's but I assume the

Hello again Erik; I think you are close but not quite precise in your understanding. Or possibly I’m not yet precise in my own. :-) All uncertainties are embedded in the model as they are uncertain

Greetings Thomas, Your best solution for a low-cost scanner is the RTL-SDR dongle, and some scanning software. The best one (currently) is the RTL-SDR.COM V3, ($23) which has a very good TCXO,

Fully agree I'm have been supporting public domain SW for more than 15 years (and still am) The step from having some SW that is usable versus SW that is robust for any usage is rather big and

On Wed, Dec 11, 2019 at 03:52 AM, Dennis W1UE wrote: I'm a newbie user- just received one last week. I've downloaded an instruction package on how to use the VNA. I've used a Mini VNA for several

I agree with Joe's decision to not release his software to anyone. He has already made several great videos on the nanoVNA which I found useful. Some people feel "entitled" to his work and this was

#82 : On The Two-Port Sine Qua Non Practical Application - Source and Load - REF: #81" : update : on the physical expression of two-port s-parameters 10 December 2019 -

Hi Dennis, there's nothing immediately limiting you to using only once package. I can only speak for NanoVNA-Saver, and it certainly uses industry standard Touchstone files where possible, and it does

I'm a newbie user- just received one last week. I've downloaded an instruction package on how to use the VNA. I've used a Mini VNA for several years, and have had problems because of its limited 50dB

Thanks, this helps. As I understand now: they determine the embedded port parameters by using the equivalent of a one-port calibration with 3 known terminations, then express the embedded port

In addition, ISTR that the Gnu Octave development team considers any lack of functionality as compared to MatLab to be a bug. Sent from a small flat thingy