HP 8712ES User Manual page 252

Calibrating for Increased Measurement Accuracy
Measurement Calibration Overview
To perform a quality calibration:
• Use the highest quality standards available and take care of them.
• When performing a user two-port, user one-port, or an enhanced
response calibration, be sure to select the correct cal kit by pressing
More Cal Cal Kit
CAL
• Make consistent connections of the standards and DUTs (if possible,
use a torque wrench when using 3.5 mm connectors).
• Minimize temperature variations.
• Use high-quality cables (semi-rigid cables, for example).
• Minimize movement of cables.
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ES User's Guide