The RFS 810929-031 7/8 inch plenum-rated coaxial cable features an air dielectric. The 50 Ohms coax cable has a 10 inch bending radius per foot. This air dielectric cable has a helically-corrugated copper outer conductor and copper tube inner conductor. Maximum frequency capacity is 3.0 GHz. No automated prep tool is available for this transmission line -- air connectors are used.The RFS 7/8 inch plenum-rated coaxial cable with air dielectric is available in bulk and is priced per foot.