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Hi everybody,

When I make the calibration on the NanoVNA saver firmware, the calibration
fails because there are two of short, open, and load returns the same
values at a specific frequency (attached in this email). Even when I change
the frequency values, I still have this issue.
But, when I do the calibration on the device itself without connecting it
to the PC, it goes very well.

Best regards,
Mohammad




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Check your cal loads with an ohm meter. Sometimes they make a mistake and ship a faulty one.

Roger

The cable is also worth measuring, maybe broken
--
Gyula HA3HZ

But, when I make the calibration without connecting the device to the
NanoVNA saver, it goes well.

On Mon, Nov 22, 2021 at 3:44 PM HA3HZ <gyula@...> wrote:

The cable is also worth measuring, maybe broken
--
Gyula HA3HZ





--

Mohammad Alsubhani

On Mon, Nov 22, 2021 at 03:03 PM, Mohammad Alsubhani wrote:

But, when I make the calibration without connecting the device to the
NanoVNA saver, it goes well.

I have had calibration failures using NanoVNA Saver. This software does limited error checking in its routines and in my case the program just aborts. Others have reported this as well.

I use NanoVNA app most of the time because I never have trouble doing calibrations with this program.

Roger

Thank you very much for your help

On Mon, Nov 22, 2021 at 6:53 PM Roger Need via groups.io <sailtamarack=
[email protected]> wrote:

On Mon, Nov 22, 2021 at 03:03 PM, Mohammad Alsubhani wrote:

But, when I make the calibration without connecting the device to the
NanoVNA saver, it goes well.

I have had calibration failures using NanoVNA Saver. This software does
limited error checking in its routines and in my case the program just
aborts. Others have reported this as well.

I use NanoVNA app most of the time because I never have trouble doing
calibrations with this program.

Roger





--

Mohammad Alsubhani

It did happen to me before, try loading a calibration you have saved prior, then try to calibrate again.