HP 8530A User Manual page 59

Calibration Fundamentals
Calibration Requirements
Use the Same Equipment Setup in the Measurement
must
Settings You Can Change after Performing a Calibration
smaller
Setting Changes that Require Special Consideration
Changing Parameter
a calibration applies to a speci c
hardware setup (a speci c collection of cables, adapters, and so forth, connected in one speci c
way).
Antenna and RCS Calibration 3-3