The 1673J-BLK-100 is a 50 Ohm, RG-402/U type microwave coaxial cable designed for high-frequency signal transmission. It is constructed with a 19 AWG solid silver-plated copper-covered steel conductor, TFE Teflon® insulation, and a copper-tin composite shield that provides 100% coverage. The cable maintains a nominal characteristic impedance of 50 Ohms and has a nominal capacitance of 29.5 pF/ft. Encased in a black PVC jacket with a nominal diameter of 0.178 inches, this cable is designed to operate in temperatures from -40°C to +105°C, making it suitable for various indoor and outdoor microwave applications.