ABSTRACT: This is the user guide of the Maury Microwave WR284 Waveguide TRL Calibration Kit for models WR284C30\32 Series. The WR284C30\32 series of waveguide TRL calibration kits are designed to provide accurate calibrations of network analyzers in the WR284 band of 2.60 – 3.95 GHz. Each of these kits includes all the necessary TRL calibration standards and associated hardware needed for the accurate calibration of most network analyzers. This kit can also be used for Short-Short-Load-Thru (SSLT) and Offset Load calibrations.