QR500 series of coaxial cable is applied to CATV networks as trunk cable, which meet the transmission requirement of broadband, high speed and low loss. CCA center conductor, 75ohm impedance, 305m packaging. ...

Construction
Center Conductor:	2.77+0.01mm Solid Copper/Copper Clad Aluminum
Dielectric:	11.43+0.05mmFoam PE
Outer Conductor:	12.70mm Aluminum Tube
Outer Conductor Thickness:	0.64mm
Jacket:	14.22+0.05mm PVC / PE
Jacket Wall Thickness:	0.76mm
Messenger:	2.77mm Steel
Jelly/APD	Per Customer’ Special Requirement
Characteristics
Impedance: 75+3 Ohm Capacitance: 50+3nF/km, 15.3+1pF/ft Velocity of Propagation: 87%

Attenuation
Attenuation [@68o F. (20o C.)] Frequency (MHz) Maximum (dB/100 ft.) Maximum (dB/100 m) 5 0.16 0.52 50 0.50 1.64 108 0.73 2.39 150 0.86 2.82 193 1.01 3.31 250 1.15 3.77 300 1.26 4.13 350 1.36 4.46 400 1.47 4.82 450 1.56 5.12 500 1.65 5.41 550 1.75 5.74 600 1.83 6.00 750 2.04 6.69 1000 2.41 7.91