开云体育

Hi,

In the Calibration menu of the NanoVna-H4? I have to start with the Open.
When I use the Calibration Assistant of the NanoVna Saver 0.3.6-rc2 to calibrate the NanoVna-H4 then I have to start with the SHORT.
Perhaps for consideration if it should be useful to change the order in the Calibration Assistant, choosing for the Open first also?
This is to avoid taking the wrong Cal component by accident if you was used to the order of the NanoVna-H4 Cal menu.

Kees, PE0CWK

If the nano follows the HP network analyzers, it doesn't matter what the order is until after DONE is pushed.....even if you did one of the conditions over again.
Does it matter with the nano?

If the nano follows the HP network analyzers, it doesn't matter what the order is until after DONE is pushed...
..even if you did one of the conditions over again.
Does it matter with the nano?

At least using 2019 nanoVNA firmware, order DOES matter:
the device is making the "next" measurement until that expected button is pressed.
If an unexpected button is pressed, current device data is for the expected button.

Hi WB2UAQ and Oristo,

Thank you both for your response.
To begin with my Firmware spec of the NanoVna-H 4, I have version 0.5.0, Build time Feb 21 2020.
Before any cal I pressed RESET.
I have done three One Port calibrations in the following order:
1.??? OPEN-SHORT-LOAD -> result CAL OK
2.??? LOAD-OPEN-SHORT -> result CAL OK
3.??? OPEN-LOAD-SHORT -> result CAL OK

With "CAL OK" I mean that I have checked the measuring points of the SHORT, OPEN and LOAD in the Smith Chart.

As soon as a Cal Component Button is pressed then the text is reverse highlighted (text on black background), so I now understand that you can exactly see what you have pressed.

To put it to the test during the calibration I have deliberately mounted the SHORT to port 1 (CH0) and pressed the OPEN button.
So also pressing the SHORT button after mounting the OPEN.
As a result when connected the SHORT the dot was concentrated to the far right of the Smith chart.

My conclusion is that it makes no sense of the order in which you may use the cal components as long as you press the right button, so I suppose that the order does not matter.
Now I am anxious to the thought behind the green colored button below the button you had just pressed in the CAL menu during calibration.



Op 8-9-2020 om 04:09 schreef WB2UAQ:

In NanoVNA no matter Order of calibrating
All calculation made after you press done button

On press Open/Short/Load/Isoln/Thru made only measure anc remember calibration data.
After press Done, this data usec for build calibration settings from this data.