RG11 Coaxial Cable with Messenger Sample:1.67 CCS21%+7.11 FPE+Bonded Al foil+7*16*0.16 Al 90% Braiding+unbonded Al foil +10.15 PVC+1.83 Steel Messenger Standard Construction: 14 AWG [1.63mm (0.064 in.)] copper covered steel center conductor; gas expanded polyethylene dielectric; inner shield aluminum-polypropylene-aluminum laminated tape with overlap bonded to dielectric; outer shield of 34 AWG (0.16 mm) bare aluminum braid wire; jacket of black polyvinylchloride. Nominal outside diameter is 10.03 mm.(0.395 in.) Physical Dimensions Component Standard Shield Tri-Shield Quad-Shield Inches mm Inches mm Inches mm Nominal Center Conductor Diameter 0.064 1.63 0.064 1.63 0.064 1.63 Nominal Diameter Over Dielectric 0.280 7.11 0.280 7.11 0.280 7.11 Nominal Diameter Over First Shield (Tape) 0.287 7.29 0.287 7.29 0.287 7.29 Nominal Diameter Over Jacket 0.395 10.03 0.395 10.03 0.405 10.29 Nominal Jacket Wall Thickness 0.042 1.07 0.039 0.99 0.037 0.94 Nominal Diameter of Steel Messenger 0.072 (single) 1.83 0.072 (single) 1.83 0.072 (single) 1.83 0.109 (dual) 2.77 0.109 (dual) 2.77 0.109 (dual) 2.77 Mechanical Characteristics Minimum Breaking 0.072 365 lbs. 166 kgf Strength of Messenger 0.109 1800 lbs. 818 kgf Electrical Characteristics Nominal Impedance 75 Ohms Nominal Velocity of Propagation 85% Shielding Effectiveness >100dB Attenuation [@ 68°F. (20°C)] Frequency (MHz) Maximum (dB/100ft.) Maximum (dB/100m) 5 0.38 1.25 55 0.96 3.15 83 1.18 3.87 187 1.75 5.74 211 1.90 6.23 250 2.05 6.72 300 2.25 7.38 350 2.42 7.94 400 2.60 8.53 450 2.75 9.02 500 2.90 9.51 550 3.04 9.97 600 3.18 10.43 750 3.65 11.97 865 3.98 13.05 1000 4.35 14.27