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cn0429 broken design files (.brd) and question about a span calibration

Dear all,

I am evaluating the cn0429 and it seems the included .brd file is corrupted somehow, would it be possible to export it again or export in another format?

The second question is about how to implement a Span calibration on the aducm355, does anyone have expierence or can share some piece of code
I remember from previous CN-0234 this was possible in an easy way somehow, ie check for a known certain reference and set a calibration point.

Any thoiughts are welcome