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RG 11URM (URM 57)

Construction

Inner conductor	Plain copper	1.15mm
Dielectric	Lowdensity PE	Φ7.25±0.18mm
Outer conductor(shield)	Plain copper	192x0.18mm
Shield coverage		97%
Sheath	PVC or LSZH	Φ10.3±0.18mm

Electrical & Mechanical Characteristics

Impedance :75±5Ohm

Nominal capacitance :67pF/m

Velocity of propagation:66%

Insulation resistance :>2000Mohm.Km

Inner conductor resistance :16.6Ohm/Km

Outer conductor resistance :4.5Ohm/Km

Operating temperature range :-30°C-+70°C

Copper weight :58.3Kg/Km

Cable weight(approx.) :146.7Kg/Km

Screening effectiveness :>55dB

Attenuation

Frequency(MHz)50	Attenuation(dB/100m)3.8	Attenuation(dB/100ft)1.16
100	5.5	1.68
200	8.2	2.5
400	12	3.66
500	13.6	4.15
600	15	4.57
860	18.8	5.73
1000	20.7	6.31

Return Loss

30-300MHz	>30dB
300-600MHz	>27dB
600-900MHz	>25dB