1/2" rf feeder coaxial cable 1)Size:3.55mm9mm12mm13.7mm 2)IS9001:2008, RoHs 3)User:Huawei,ZTE, ... military use, aerospace, vessel or other circumstance where RF cable is needed. Inner Conductor: Smooth Copper Tube/ Copper ... at 900MHz(dB/100m)Attenuation at 1800MHz(dB/100m)1/4" SF501.905.006.407.6018.4027.101 ... Electricial Performance: 50 ohm rf feeder coaxial cable(1/4",1/2",5/8",7/8",1-1/4,1-5/8)