The CAL-5501 calibration certificate provides a summary of as-found and as-left verification results in the Characterization Summary table. Additionally, the calibration certificate includes links to data archive (.zip) folders that contain S-parameter measurements for each calibration standard. Click the links in the Calibration Files section of the calibration certificate to download the archive folders.

New devices have only an As Left archive folder while devices returned for calibration have As Found and As Left archive folders.

The As Left archive folder contains files with S-parameter measurements, measurement uncertainties, and how the measurements compare to family performance. Calibration Executive uses the vector difference between the S-parameter measurements and family performance to determine if the As Left verification results passed or failed.

The As Found archive folder contains files with S-parameter measurements and how the measurements compare to the previous calibration. Calibration Executive uses the measurement drift since the previous calibration to determine if the as-found verification results passed or failed. Calibration Executive evaluates drift using normalized error, En, as specified in EURAMET Calibration Guide No. 12 Version 3.0 (03/2018).