Item 1/2" 7/8" 1-1/4" 1-5/8" Inner conductor Material Copper clad aluminum/ smoothly copper tube smoothly copper tube/ helically corrugated copper tube Diameter 4.83 9.00 13.10 17.27 Dielectric Material Foamed polyethylene Diameter 12.00 22.00 32.00 42.00 Outer conductor Material Annularly corrugated copper tube Diameter 13.84 24.94 35.80 46.50 Jacket Material PE Diameter 16.40 28.80 40.70 51.20 Performance Item 1/2" 7/8" 1-1/4" 1-5/8" Min.bending radius (mm)　[many times] 250 500 760 1020 Operating temperatrue (°C) Standard jacket －40°C～＋70°C Halogen-free/Fire-retardant jacket －25°C～＋70°C Construction weight (kg/m) Standard jacket 242 595 1050 1525 Halogen-free/Fire-retardant jacket 261 635 1130 1615 Flat plate crush resistance (kg/mm2) Max.pulling (kg) 45 90 150 180 DC resistance (Ω/km) Inner conductor(CCA) 1.65 1.09 0.69 0.88 Outer conductor 2.38 1.20 0.57 0.42 Insulation resistance (MΩ/Km) 10000 Dielectric strength (DC.V) 4000 6000 9000 11000 Velocity of propagation (%) 88 88 88 87 Peak power rating (kw) Max.operating frequency (MHZ) 3000 Characteristic impedance (Ω) 50±2 V.S.W.R (1M～3GHZ, Max) 1.2