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Menu -> Config -> DFU nothing else need vy73 de Teo Am 16.12.2019 um 00:01 schrieb Herman De Dauw:

Have you read the Wiki files for upgrading ? Zadig is not nessecary. And you need to place the boot switch of jumpers needed to start in DFU mode.

Hi Jef One more comment. The load being 50 ohm it is not sensitive to a small displacement of the calibration plane. You will soon see a perfect T-Check Kind regards Kurt -----Oprindelig

Hi Jeff It is not a mystery why it work ? You open offset delay is not 14.491ps but 17.15ps with the C0 and C1 included Then the difference between the short and open is 17.15-16.695=0.45ps so the

Dear Gary, Well, allow us, please, to underline what we already said in: #83 : On the Doubtfulness - 13 December 2019: /g/nanovna-users/message/8173 that is : it is just a "new" -but

I received a nanoVNA last week and tried to upgrade it. I ran Zadig and updated the drive according to Zadig's default suggestion. Once done, I sort circuited the boot0 and Vcc terminals, connected

Thank you again GIN&PEZ; This is both an interesting and exciting journey of discovery and understanding for me. Your diligence and persistence, along with the availability and convenience of modern

Fair enough. I'm a bit sceptical of the T-check method. R&S don't sell the device to do this any any more, but they used to. They only sell verification kits based on airlines and attenuators. Ken

I guess a revisit to using an impedance matching network to solve this issue is required. Once a upon a time we spent significant effort building RX bridges, noise bridges, etc... and spent much time

========================================================== The newest hardware release is the NanoVNA-h, see attachments. It is priced slightly higher than the old release but is a better overall

Mechanical construction of standard have a relationship to the plane of calibration. Basically you can measure that as distance or time they use time as its easy to measure. What does it mean is that

Are any of them newer hardware release levels? Any to avoid?

Here's what I use. Drill 2 holes and cut a 2" slot and presto, a case with a lid for $1.60 plus 4 more cases for other projects.

2 - @Gary O'Neil, N3GO 15 December 2019 - /g/nanovna-users/message/8238 Hello again, We are terribly sorry but we forgot to emphasize enough that a model such this one is totally

@Gary O'Neil, N3GO 15 December 2019 - /g/nanovna-users/message/8238 Dear Gary, Not at all. Would you read, please, our related message: #85: On the Formation of a Virtual Port 15

GIN& PEZ; Do your assertions in: #84: On the Virtuality of the "Measurement Port" signal that you are abandoning your pursuit of a two port model of a “LeastVNA”, or is it simply a statement that

#85: On the Formation of a Virtual Port Hello, Allow us, please, to somehow explain the formation of a Virtual Port facupov, in our sow. Well, since we can always introduce the "reflection" relation:

A few years ago I made an open and a short female SMA standard for calibrating my HP 8753C VNA (for the load I used a very nice 85052 female 3.5mm load). I never used the open and short above about 30

As measured impedance get significantly higher or lower then 50 ohms the variance in bridge resistors create greater errors.

I bought a case from the eBay source Terry referenced. I did have fo file one edge to get the proper fit, but otherwise, no problems. -ed, k9ew