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To Roger: Thanks for your comments. Consistent with the physics involved. Ed McCann AG6CX

You posted that you cannot see it in Device Manager. Can you see it in DFU mode? This will require opening it and shortening 2 pins. Roger

Example: Cable length measured in M1 point Impedance on M2 More points in this range - better measure quality

Set start frequency more low (cable impedance measured on half frequency from point then smith rotate on 180 degree)

Heck, it's confused with NanoVNA-H (4). However, it can be read that it is a 2.8 "-H shipped with this firmware. As Roger Need wrote, the firmware needs to be updated. If you haven't already done so,

Where did you vind v. 1.2? I can't find that anywhere. Zack W9SZ

Just took another look at your console output. Your firmware is over 2 years old so you need to update if you want to use the NanoVNA app Roger

What version of H4 firmware are you using? The NanoVNA app uses a binary protocol to transfer sweep data. This is different than the old ASCII protocol that was initially used by the NanoVNA. If your

Ed, Yes most antenna analysis is done using the serial R+/-jX form for impedance. However as Jim Lux points out in another post today ( /g/nanovna-users/message/28231 ) there are

Does nanoVNA-Saver work on your machine? I can see that win7 sp1 is running. To run Saver, I need some things that I described in a pdf file. Link:

When dealing with a single feedpoint, working with impedances (and a series formulation of R+Xj) is traditional - it maps well into VSWR, etc. However, when working with multiple feedpoints, or

Roger: I’ve always thought of the conventional antenna parameter measurement as the antenna being in series, i.e., Z load = Zs = Rs + Xs Cebik notes that, with respect to modeling and looking at

Tried this and still just a white screen. I guess it's bricked. Thanks for all the responses. Perry

Dear, I have a problem with the NanoVNA-H(4) and NanoVNA-App I can connect it on com5 but it does not read the data and mention always a number of points error Does someone has a trick to solve this

Hi, out of curiosity I've made a measurement of my nanovna H4 stock RG316 cable (of length 163mm end to end, incl connectors). NanoVna App shows 158.4mm, while H4 (Measure->Cable) shows almost

Thank you for doing this for us Mike

Not sure. I was using the spreadsheet to 1. Confirm that menu items were returning values I expected, so that I could update the manual with meaningful language 2. Explore data relationships. I

One port S11 measurement on a NanoVNA-H4 gives good results up to several thousand ohms (see attached 3K ohm example). It is better than using the S21 serial method. The S21 serial method does not

Rich, What is SWR:Linear? Roger

I updated this spreadsheet for the convenience of others by rearranging the columns and including instructions in the spreadsheet. ~R~ 72/73 de Rich NE1EE The Dusty Key On the banks of the Piscataqua