¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io
Date
Re: NanoVNA-Saver 0.0.12
Hi Herb, I would actually suggest holding back for just a few days; NanoVNA-Saver 0.1.0 doesn't work that well with 0.2.2. The problems should be fixed in my next release. :-) -- Rune / 5Q5R
By Rune Broberg · #4228 ·
Re: Quick compare with HP 8753C...
I have been a long-time user of Matlab; however, the license (number 12652) I use professionally cannot be used by me in a private setting. I recently learned of GNU Octave at
By Bryan, WA5VAH · #4227 ·
Re: NanoVNA-Saver 0.0.12
Rune, Thanks for the heads up. I've been hesitant to upgrade to the 0.2.2 firmware because I haven't had a compelling reason to do so. I think you just gave me one :) Herb
By hwalker · #4226 ·
Re: NanoVNA-Saver 0.0.12
The only discrepancy - which is fatal to the software working - that I have seen thus far, is that the developers have changed the prompt line, which I use to detect when output from the device has
By Rune Broberg · #4225 ·
Re: NanoVNA-Saver 0.0.12
Paul, Feedback from users so far is that the command set for the NanoVNA-F is not fully compatible with the NanoVNA and, therefore neither NanoVNA-saver or NanoVNASharp work with it. If the only
By hwalker · #4224 ·
Re: NanoVNA parallel R measurement
IMO, you are probably better off measuring the series impedance and converting it to a parallel impedance because of the inaccuracy of the NanoVNA when measuring very high impedances.
By W5DXP <w5dxp@...> · #4223 ·
Re: Inductor S21 measurement using nanoVNA
Hi, aa_talaat, Here is a suggestion. I would recommend that you connect the inductor from the center conductor of port 0 to the ground of port 0 with the shortest possible wires. If you could, I would
By Bryan, WA5VAH · #4222 ·
Re: Screen stylus tip
I have 2 old but new metal pens with a nylon tip. Previously used to transfer rubbing letters and stripes to a copper print for etching. Works great !
By ON1BES · #4221 ·
Re: Annotated nanoVNA menu diagram
Narrow gif with white background:
By Oristo · #4220 ·
Re: Quick compare with HP 8753C...
Has anyone looked at S21 for a mixer as DUT, where other mixer input is e.g. sinusoid or sawtooth?
By Oristo · #4219 ·
Re: errors of "error" models
37 : ann : the uncertainties of our nanovna will be estimated tomorrow
By gin&pez@arg · #4218 ·
Re: NanoVNA-Saver 0.0.12
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,
By Paul Alfille · #4217 ·
Re: NanoVNA parallel R measurement
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
By sean@... · #4216 ·
Re: Annotated nanoVNA menu diagram
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
By Larry Rothman · #4215 ·
Re: Inductor S21 measurement using nanoVNA
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
By Jim Potter · #4214 ·
Re: Annotated nanoVNA menu diagram
Like this? https://oristopo.github.io/nVhelp/html/Vnano.htm
By Oristo · #4213 ·
Re: Annotated nanoVNA menu diagram
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:
By Larry Rothman · #4212 ·
Re: Annotated nanoVNA menu diagram
Oops, previous menu gif background was light gray; whitened:
By Oristo · #4211 ·
Re: Cal-Kit Standards' Definitions
There is at least room in the firmware menu to add a "negative delay" menu item, under e.g. "CONFIG"..
By Oristo · #4210 ·
Re: Inductor S21 measurement using nanoVNA
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
By W5DXP <w5dxp@...> · #4209 ·