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37 : ann : the uncertainties of our nanovna will be estimated tomorrow

For the record, Nanovna-saver looks for Nanovna USB id's For the Nanovna-F I get: usb 3-11: new full-speed USB device number 20 using xhci_hcd [13509.779971] usb 3-11: New USB device found,

thanks, the smith chart tutorial was nice, the matching network I'm dealing with is a bit more involved as it consists of an emc low pass filter on the rfid chip amp, then the matching L network going

Sweet! Nice work.? On Sun, 6 Oct 2019 at 3:06 PM, Oristo<ormpoa@...> wrote: > If you'd like to make this diagram slightly narrower, Like this?? https://oristopo.github.io/nVhelp/html/Vnano.htm

The S Parameters are defined in terms of a circuit within a closed box. Snm is the amplitude of the signal coming out of port n relative to the signal that went into port m. Thus, S21 is the signal

Like this? https://oristopo.github.io/nVhelp/html/Vnano.htm

If you'd like to make this diagram slightly narrower, the right-most rows on calibrate and format could be made to go vertically down. On Sun, 6 Oct 2019 at 2:48 PM, Oristo<ormpoa@...> wrote:

Oops, previous menu gif background was light gray; whitened:

There is at least room in the firmware menu to add a "negative delay" menu item, under e.g. "CONFIG"..

Something that I have never fully understood is that S21 is supposed to be measured using a "matched load". Isn't the "matched load" of a VNA equal to 50 ohms? Are we to assume that 50 ohms is the

Also, LTspice from Linear Technology (now part of Analog Devices) has been freely avaiable for a long time. There is a Yahoo group, LTspice, which provides excellent support and information. DaveD

Sean,Are you aware that the simulation software call MicroCap is now free? http://www.spectrum-soft.com/ Try simulation first to give you a rough idea of your component values, then prototype and

With respect to matching networks, have you seen W2AEW's Youtube channel? https://www.youtube.com/watch?v=IgeRHDI-ukc Also, do follow the link to W0QE's Youtube channel: SimSmith is very nice

Very nice, thanks.? On Sun, 6 Oct 2019 at 11:45 AM, Oristo<ormpoa@...> wrote: > > I hope there will be no objection to me sharing Easier to print:

Yes, I meant correction.You have a save menu after the correction button.. shouldn't be one. Correction is on or off.I still think reset should be at the top of the list and save after calibrate

I am aware of that, like I said, I'm new to RF, but I understand that without a non reactive part of impedance in the antenna, there's no power going into the antenna right? If the LC is at resonance,

Hi aa--something Cables length as such has basicly no influence. Consider the cable as part of the hardware system, they are calibrated away. The only effect is small potential phase variation if the

Thank you Erik, that explains it, an image.? So I just ignore the lower frequency of the two peaks.? And it's possible to calibrate the amplitude.? I will try the test of seeing the FM BC band with

See /g/nanovna-users/topic/34079496#3464

I tried my nanovna as a spectrum analyzer and it is interesting.? Amplitude isn't calibrated.? I measured my signal generator and it shows me two responses fairly close together; I verified on my