ABSTRACT: This is the user guide of the Maury Microwave 3.5mm Coaxial Calibration Kit from DC to 34 GHz for models 8050CK30/31. This series of 3.5mm the DC to 34.0 GHz coaxial calibration kits is designed to provide accurate calibrations of network analyzers in range. Each of these kits includes all the necessary calibration standards and associated hardware needed for the accurate calibration of most network analyzers.