QR412 QR500 QR540 QR600 QR750 QR860 75ohm al tube copper or cca trunk cable CATV CCTV TV signal transmission coaxial cable

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Coaxial cable

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Product description

QR412 QR500 QR540 QR600 QR750 QR860 75ohm al tube copper or cca trunk cable CATV CCTV TV signal transmission coaxial cable

Standard Construction

QR540 is 3.15mm copper clad aluminum or copper center conductor;
gas expanded polyethylene dielectric;
continuous aluminum outer conductor;
flame retardant polyethylene (PE) jacket.Nominal O.D. 0.610 in. (15.49mm).

Physical Diamensions

Component	Inches	mm
Nominal Center Conductor Diameter	0.124	3.15
Nominal Diameter Over Dielectric	0.514	13.03
Nominal Diameter Over Outer Conductor	0.540	13.72
Nominal Outer Conductor Thickness	0.0135	0.343
Nominal Diameter Over Jacket	0.610	15.49
Nominal Jacket Wall Thickness	0.035	0.89
Messenger Versions
Diameter of Steel Messenger	0.109	2.77

Mechanical Characteristics

Minimum Bending Radius (Jacketed)	4.0 in. 10.2cm
Maximum Pulling Tension	220 lbs. 100 kgf
Minimum Breaking Strength Of Messenger	1800 lbs. 816 kgf

Electrical Characteristics

Capacitance	50±3 pF/m
Impedance	75±2 Ohm
Velocity of Propagation	0.88
Shielding Effectiveness	>100dB

Attenuation

Frequency (MHz)	(dB/100ft.)	(dB/100m)
5	0.14	0.46
55	0.47	1.54
211	0.95	3.12
250	1.03	3.38
270	1.07	3.51
300	1.13	3.71
325	1.18	3.87
350	1.23	4.03
400	1.32	4.33
450	1.40	4.59
500	1.49	4.89
550	1.56	5.12
600	1.64	5.38
750	1.85	6.07
865	2.00	6.56
1000	2.17	7.12