QR540

QR540

It is widely used in cable TV, digital TV, CCTV, video transmission, security system and satellite TV. Trunk cable, branch distribution cable.

QR540 Details

Construction

Item Material Diameter(Inch/mm)
Inner Conductor CCA-Copper Clad Aluminujm 0.124 3.15
Dietectric Foam PE 0.514 13.05
Shield Solid Aluminum tube 0.540 13.72
Thickness 0.014 0.34
Jacket PE 0.610 15.49

 

Electrical Characteristics

Capacitance(pF/m) 52+/-2
Impedance(Ω) 75+/-3
Velocity of Propagation(%) 87.0
Return Loss(dB) ≥22
Screening Effectiveness(dB) ≥100

 

Attenuation(@20℃)

Frequency(MHz) Max Attenuation(dB/100ft) Max Attenuation(dB/100m)
5 0.14 0.46
55 0.47 1.54
83 0.58 1.90
211 0.95 3.12
250 1.03 3.38
300 1.13 3.71
350 1.23 4.04
400 1.32 4.33
500 1.49 4.89
600 1.64 5.38
750 1.85 6.07
865 2.00 6.56
1000 2.17 7.12

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