1/2" rf feeder coaxial cable 1)Size:3.55mm9mm12mm13.7mm 2)IS9001:2008, RoHs 3)User:Huawei,ZTE,USA,Germany ... at 900MHz(dB/100m)Attenuation at 1800MHz(dB/100m)1/4" SF501.905.006.407.6018.4027.101/4 ... 5/8"5017.3042.0046.5050.002.413.70 Electricial Performance: 50 ohm rf feeder coaxial cable(1/4",1/2",5/8",7/8",1-1 ... /4,1-5/8)