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Don't downplay the accuracy of the NANOVNAs. I have compared several offerings from the NANOVNAs with the HP 8753C with the associated S-Parameter test set using HP cal. standards. The agreement,

Arie, Thank you for posting your paper. I suggest that you correct the text below to state that this formula is only true when the reactance X is 0. I have seen on many occasions people thinking that

Thanks for the correction. I put these together quickly and should have proofread them for errors. Here are the corrected versions showing several complex impedance values that all result in an SWR of

Hi Russ, Lets put it simple without too many formulas. There has been a lot of math to come to the SWR formulas but we can think about it. The reflection coefficient is the percentage of reflected

You can certainly make a homemade short or open, but characterizing it accurately is another thing entirely. Without accurate characterization a standard is useless. 73, Don N2VGU

I am happy with my LibreVNA, but I also bought a better calibration kit than was provided. The quality of the kit and accuracy of the standards' characterization will directly affect the accuracy of

Oroot, At frequencies up to 1GHz or so, it is certainly practical to make your own Open, Short, and Load. Ideally, the three standards should be the same length, which becomes more critical at higher

Correction Between 1400 and 4000 But that one goes to 20 gig hz!!! https://deepace.net/kc901-network-analyzer/ Greetz sigi dg9bfc Am 04.08.2022 06:30 schrieb Siegfried Jackstien

KC901 Different range (and so price) available Between 1000 and 2000 bucks or so Much more professional and accurate as all the Nanos... And still portable use (with a bit bigger display) So i

Hello, I did a surch the project, : DeepSDR Radio DSP Digital Demodulation Shortwave AM FM MW SSB CW HAM Receiver Clyde KC7BJE

On both charts, 25+j0 and 100+j0 need to be swapped. They are wrong as labeled.

Kadir, what does it offer that nanovna-h doesnt?

Hi John Good guess at both my range of interest(indeed below 900MHz) and the education side... I have very limited techniques as im new to it all. Im going to try and find that article you mention, if

I, for one, really appreciated hearing about this new product although it may have been in the wrong forum. I don't know where else Kadir might have announced it that I would have seen it. Perhaps

I apologize for the inconvenience caused, it will not be repeated, thank you.

Oroot, Assuming the frequency range of interest is 900MHz and below, your best investment for better accuracy in RL/VSWR and attenuation is probably educating yourself in best technique. As an

An excellent learning tool by just jumping in is SimSmith: http://www.ae6ty.com/smith_charts.html There is also an excellent tutorial (and a lot more) by W?QE at: https://www.w0qe.com/SimSmith.html

Hey all, first post here. I currently own and love the nanovna-h and h4, I was sure to buy them from the alibaba store zeenko as this is apparantly hugens chosen manufacturer. However, if I wanted to

Time is well spent learning a bit about the Smith Chart. You can plot a complex impedance and then draw a circle that intersects the point and get the SWR. You can also measure the distance and get

As long as it is free and open source, I don't mind the announcements for related projects. If it is a product you have to pay for, I am all for every bit of censorship.