RG 11URM (URM 57)
Construction :
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Inner conductor Plain copper 1.15 mm Dielectric Low density PE Φ7.25 ± 0.18 mm Outer conductor (shield) Plain copper 192 x 0.18 mm Shield coverage 97% Sheath PVC or LSZH Φ10.3 ± 0.18 mm -
Electrical & Mechanical Characteristics :
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Impedance 75±5 Ohm Nominal capacitance 67 pF/m Velocity of propagation 66% Insulation resistance >2000 Mohm.Km Inner conductor resistance 16.6 Ohm/Km Outer conductor resistance 4.5 Ohm/Km Operating temperature range -30 °C - +70 °C Copper weight 58.3 Kg/Km Cable weight (approx.) 146.7 Kg/Km Screening effectiveness >55 dB
Attenuation :
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Frequency(MHz) Attenuation (dB/100 m) Attenuation (dB/100ft) 50 3.8 1.16 100 5.5 1.68 200 8.2 2.50 400 12.0 3.66 500 13.6 4.15 600 15.0 4.57 860 18.8 5.73 1000 20.7 6.31
Return Loss :
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30-300 MHz >30dB 300-600 MHz >27dB 600-900 MHz >25dB