Maury offers coaxial and waveguide VNA calibration kits. Coaxial calibration kits are offered in Polynomial SOLT, Characterized Device (CD) SOLT, and TRL, depending on the connector series. Where available, CD kits improve calibration accuracy when compared to SOLT kits based on polynomial definitions as each calibration kit is provided with individually characterized short, open and fixed load standards, whose S-parameters can be loaded into commercial VNAs directly or when used with Maury’s Insight™ software platform. When combined with Insight™, users will be able to quantify the uncertainty contribution of their calibration kit to their overall measurements. CD cal kits result in TRL-like accuracy with fixed-load SOLT ease-of-use.