SpecificationsPhysical Dimensions Component Standard Shield Tri-Shield Quad-ShieldNominal Center Conductor Diameter: 0.032 0.81 0.032 0.81 0.032 0.81Nominal Conductor Over Dielectric: 0.144 3.66 0.144 3.66 0.144 3.66Nominal Conductor Over First Shield (Tape): 0.151 3.84 0.151 3.84 0.151 3.84Nominal Diameter Over Jacket: 0.240 6.10 0.240 6.10 0.265 6.73Nominal Jacket Wall Thickness: 0.032 0.81 0.030 0.76 0.034 0.85Nominal Diameter Steel messenger 0.051(single): 1.30 0.051 1.30 0.051 1.300.072(dual): 1.83 0.072 1.83 0.072 1.30Mechanical CharacteristicsMinimum Breaking: 0.051 180lbs. 82kgStrength of Messenger: 0.072 365lbs. 166kgElectrical CharacteristicsNominal Impedance: 75 ohmsNominal velocity of Propogation: 85%Shielding Effectiveness: >100dBAttenuation[@ 68. (20oC)]Frequency(MHz)   Maximum(dB/100ft. )   Maximum(dB/100mm)       5             0.86                     2.82         55            2.05                     6.73         83            2.45                     8.04         187           3.60                     11.81         211           3.80                     12.47         250           4.10                     13.45         300           4.45                     14.6         350           4.80                     15.75         400           5.10                     16.73         450           5.40                     17.72         500           5.70                     18.7         550           5.95                     19.52         600           6.20                     20.34         750           6.97                     22.87         865           7.52                     24.67         1000          8.12                     26.64