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They are mixed down for the analog-to-digital converter (ADC), which arguably makes DSP harder, since it has to sort opposite side band suppression. Here is a collection of articles that I find

Oristo, My reading of Alan's post is that he performed a normal OSL calibration at port 0. After that he connected his shorted clips to port 0 and noted the difference between the OSL short and the

Hi Alan - I would be very interested to know what value is reported by nanoVNA for that inductor @ 3 MHz after "Mickey Mouse calibration" by short, open and ~ 50 Ohm resister in alligator clips.

Herb, the "cutoff frequency" is the -3 dB point. I should make that more clear, I suppose :-) -- Rune / 5Q5R

Rune, The international definition of bandwidth is actually the -3 dB points. That is what most manufacturers mean in their literature unless specified otherwise. The -6 dB and -60 dB points are more

Hi Bryan, I just confirmed by installing 0.2.2 on my NanoVNA that it does indeed have problems interfacing to my application. I have asked edy555 about it on Twitter, and for my own testing purposes,

it on the Smith Chart? I produce all my plots for VNA cal kits usin gnuplot, as one can automate everything, reducing the risk of errors. But I have never plotted it on a Smith Chart - only amplitude

Test certificates, flow charts, not more than 30% charged, 27 pages in length. Irrespective of what air regulations state, a lot of couriers have much more restrictive practices. I wanted to get a

Here is a Smith Chart that need only be printed: http://ormpoa.altervista.org/SmithChart.gif It is generated using gnuplot, my favorite data plotting package: http://www.gnuplot.info/

Same here, but i stil i no negative Feedback for the seller. Strange.

Indeed. Downmixing retains phase difference

If you like to build a clone from the sdr-kits *Testboard*, just use a FR4 veroboard 35 x 27 mm and solder 7 x 7 IC socket pins and 2 SMA female plugs with a paper model, what you can get from the web

https://www.iata.org/whatwedo/cargo/dgr/Documents/lithium-battery-shipping-guidelines.pdf W5VZB

Here's United Parcel Service's reference material about shipping Lithium batteries: https://www.ups.com/assets/resources/media/us_lithium_battery_regulations.pdf Covers air and ground, and lithium ion

Ignoring random errors (noise, repeatedly of connectors etc), the standards should look perfect opens and shorts, i*f that is how they are defined. *You could use an SMA plug with a few cm of wire and

To check if I understand this correctly I ask, There is also a phase difference between reference and difference voltage from a bridge. I should have remembered that. And now they are mixed to 5kHz to

I may start this as a new thread titled Measurement of Components... again. In any case, I put together the nice n' easy alligator BNC connector interface which is easy to deal out. The part under

Mike, see attached for a first sneak peak of what I'm working on. I think I'm currently under-estimating the roll-off by measuring it from the -6dB point and to the end of the data. Is there a norm

Rune, Thanks for your kind comments. Here are some suggestions regarding your 4 questions above. 1) What window do I recommend? A Blackman window has very low peak sidelobes (< -58 dB) which is

[email protected]> wrote: Same here, but clicking on the tracking number says that the label has been created, but not actually shipped yet. If this was $200 I would be a bit more concerned, but $20