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Why don't you look into the Device Manager. W.

Hello, Since this morning, my NanoVNA-H don't accept the USB connection. I tried on 3 different PCs, no success. On battery, all is ok but i'm not able to do charging. I suspect an USB interface

Hello, Since this morning, my NanoVNA-H don't accept the USB connection. I tried on 3 different PCs, no success. On battery, all is ok but i'm not able to do charging. I suspect an USB interface

Hello Bert, There is a schematic from the H4 design version 4.2.1 from 2020-02-13 which is the last version, see:

Optimizing the S11 of a pre amp usually doesn't result in best noise figures and hence best overall receiver sensitivity. Also having too much gain in a pre amp may cause overload and

Following up on this thread 6 months later. Does anyone know if there has been any firmware development performed on a function to track the lowest SWR for the nanoVNA? John - W3JED

I hadn't seen much written about using the NanoVNA with VHF preamps. I have a couple I have never adjusted except "by ear." So I thought I'd give it a try. I put a 20 dB attenuator on the output,

Get the NanoVNA H4 with the 4 inch screen. You will be much happier. I got mine from R&L Electronics. Sam W3OHM P.S. You probably won't touch the MFJ once you have the NanoVNA

Hi Gabriel, I have bought H4 from eTool Store on Ali. Pls, what can tell me about it ? Can you? Just for my curiosity. Thanks, Milo? ---------- P?vodní e-mail ---------- Od: Gabriel Tenma White

Thanks for the tip on using Automator. I’ve had this Macbook Pro for 5 years now and never even looked at it. I will certainly look at it now. I think I may not have jumped to using it becuase I am

Thank you all for sharing your information. Time to make a purchase and move forward. More questions may follow. 73, W9OD

I don't think any nanovna "V1" can work with good accuracy above 900 Mhz, whatever "flavor". For all my measurements above 300 Mhz, I use another VNA offering a much better dynamic range. A nanovna

I export the nanovna touchstone files into simsmith where I can make different simulations/adaptations [email protected]> wrote:

I had completely forgotten about Les Besser. He was great -- and one really smart guy. I met him somewhere -- perhaps at one of the microwaves courses he used to teach.

I installed nanovna-saver-0.2.2 on my Mac and it works perfectly in MacOS (I use the latest Catalina 10.15.5). I wish I could remember exactly how I installed it. I do know that I can invoke it from a

I am a newbie to the NanoVNA H4 as well, and will defer to others that are more knowledgeable on this topic than me, but I read on another forum that RigExpert release AntScope2, an open source

Hi Craig, Yes, i used it today actually with a NanoVNA-H and NanoVNA-Saver on OSX Mojave, no trouble. It's certainly easier to use on the computer, but if you'll be hanging off towers and prefer to

Ok, I thought that he wanted to measure the CH1 termination resistors network, that is why I mentioned "nanoVNA switched off of course". Instead from what I understand he wanted a live ohmmeter

Hi Craig, you may want to install Python on your machine now so you can try out the nanovna saver. He gets acquainted with it until the nanovna arrives. Rick included a pdf on how to install it. You

Please note that the build date for 4.2.1 is incorrectly 2019, correct 2020. -- *** If you are not part of the solution, then you are the problem. ( http://ha3hz.hu/ ) ***