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Concerning ideal TLTs: First sentence above is true. Second sentence is false. A Transmission Line Transformer has an electrical length. If the load on the 9:1 TLT-balun is not the designed-for load

On Sat, Dec 28, 2019 at 07:10 AM, Birdman wrote: "Is it not possible to update the bios/software on these units? I assumed they can be and didn’t even consider the version on it."

W5DXP, thanks for your response...I think... What I mean is that you have provided me with another thing to learn about, that is how to "calibrate your measurement plane at ..." Do you have any

On Sat, Dec 28, 2019 at 06:31 AM, DJ7BA wrote: " ,,, the Lambda/8 method is not commonly known... " ================================================= The method is more useful when you have an

Hi Herb, I’m also new to this, and ordered a NanoVNA which is arriving today. Is it not possible to update the bios/software on these units? I assumed they can be and didn’t even consider the

I've done it. Simply calibrate your measurement plane at the output of the balun that feeds the ladder line. The attached graph was done with an AIM-4170D but the calibration procedure for it and the

Erik, if I understand correctly, the purpose of the 1:9 balun is to reduce impedance by a factor of 9. So, presuming that I have a 450 ohm load at the end of the ladder line (which might not

Hi Helmut, Nick, Corneliu and Martin, thanks for the kind replies - indicating that the Lambda/8 method is not commonly known. The value measured that way is good for just that one Lambda/8 frequency.

Consider buying one of these https://www.ebay.com/itm/New-1-9-HF-Antenna-Balun-Tiny-Low-Cost-1-9-Balun-Frequency-Band-Long-Wire-Aerial/254433074498?hash=item3b3d649d42:g:M3wAAOSwJ5Bd24Y- and use it

For me the biggest issue with these has been the small display!,in the uk the f model is over ?100 as oposed to the h model at about ?30 ish,ive ordered a 3.2 inch screen for mine,not ideal but

Glen K4KV said: "One comment I will make, and not to upset anyone, but there seemed to be a fixation on cost. Take my viewpoint: I spent $600 building my N2PK VNA, so getting a really great nano at,

Erik, thanks for responding. For the moment, I'm just trying to understand what is going on, impedance-wise, with my antenna system. Not that I am having "problems" that need to be "solved," just

Was searching for info on the v3.4 improvements and found this from hugen79 at a Gidhub message exchange where he mentions at least one of the improvements: hugen79 commented Nov 12, 2019: Noise

How do you normally operate the ladder line? Using a balun or via an antenna tuner that provides balanced output? In case you use a balun simply connect the nanoVNA to the balun and measure. When

The technique I use is a bit different. The credit card offered by my bank has a special function, that allows to generate a one-use-only credit card number, meaning that after that number has been

How would you do it? I'm thinking that first, I'd need to construct an adapter for the VNA - sma connector, short length of coax, with clips on the center conductor and shield to clip to the two sides

Herb, Thanks for the information.? Obviously, I am new here, and do not own a unit yet.? I have a N2PK VNA, that has now started to act up.? It is pretty much a laboratory piece of equipment,

On Sat, Dec 28, 2019 at 03:55 AM, GmailK4KV wrote: I do this kind of stuff too, and get NO help ;-) being a "one-man" show. I have to do the hardware AND software.

On Fri, Dec 27, 2019 at 11:44 PM, <hugen@...> wrote: "...I will print the NanoVNA-H label and the hardware version number on the PCB I sell, and there will be a QR code next to the screen of

Oh, I forgot to mention, thanks very much to the developers for all their hard work.? I do this kind of stuff too, and get NO help ;-) being a "one-man" show.? I have to do the hardware AND