1-5/8" rf coaxial cable 1)IS9001:2008, RoHs ,IECQ 2)User:Huawei,ZTE,USA ... telecommunication, military use, aerospace, vessel or other circumstance where RF cable is needed. Inner Conductor: Smooth Copper Tube/ Copper Coating ... at 900MHz(dB/100m)Attenuation at 1800MHz(dB/100m)1/4" SF501.905.006.407.6018.4027.101/4 ... 0046.5050.002.413.70 Electricial Performance: High quality 1-5/8 rf co-axial cable