5543802 | QR® 860 JCASS
©2020 CommScope, Inc. All rights reserved. All trademarks identified by ® or ™ are registered trademarks,
respectively, of CommScope. All specifications are subject to change without notice. See www.commscope.com for the
most current information. Revised: January 17, 2020
Page of 1 3
75 Ohm QR® Trunk and Distribution Cable, black PE jacket, flooded
for underground
Product Classification
Product Type Coaxial hardline cable
Product Brand QR®
General Specifications
Cable Type 860 series
Construction Type Welded
Jacket Color Black
Short Description QR 860 JCASS SM PR2171
Dimensions
Cable Length 2950 ft|899.16 m
Diameter Over Center Conductor, nominal 0.203 in|5.156 mm
Diameter Over Dielectric, nominal 0.828 in|21.031 mm
Diameter Over Jacket, nominal 0.96 in|24.384 mm
Diameter Over Outer Conductor, nominal 0.86 in|21.844 mm
Jacket Thickness, nominal 0.045 in|1.143 mm
Outer Conductor Thickness, nominal 0.016 in|0.406 mm
Electrical Specifications
Capacitance 15.3 pF/ft|50.197 pF/m
Capacitance Tolerance ±1.0 pF/ft
Characteristic Impedance 75 ohm
Characteristic Impedance Tolerance ±2 ohm
dc Resistance Note Nominal values based on a standard condition of 20 °C (68 °F)
dc Resistance, Inner Conductor, nominal 0.41 ohms/kft|1.345 ohms/km
5543802 | QR® 860 JCASS
©2020 CommScope, Inc. All rights reserved. All trademarks identified by ® or ™ are registered trademarks,
respectively, of CommScope. All specifications are subject to change without notice. See www.commscope.com for the
most current information. Revised: January 17, 2020
Page of 2 3
dc Resistance, Loop, nominal 0.73 ohms/kft|2.395 ohms/km
dc Resistance, Outer Conductor, nominal 0.32 ohms/kft|1.05 ohms/km
Jacket Spark Test Voltage 5000 Vac
Nominal Velocity of Propagation (NVP) 88 %
Operating Frequency Band 5–3000 MHz
Structural Return Loss 26 dB @ 1002–1218 MHz |30 dB @ 5–1002 MHz
Attenuation
Frequency (MHz) Attenuation (dB/100 m) Attenuation (dB/100 ft)
5.0 0.3 0.09
55.0 1.05 0.32
83.0 1.31 0.4
85.0 1.31 0.4
204.0 2.07 0.63
211.0 2.1 0.64
250.0 2.3 0.7
300.0 2.49 0.76
350.0 2.72 0.83
400.0 2.89 0.88
450.0 3.12 0.95
500.0 3.28 1
550.0 3.48 1.06
600.0 3.61 1.1
750.0 4.07 1.24
865.0 4.36 1.33
1000.0 4.82 1.47
1002.0 4.92 1.5
1218.0 5.43 1.66
1300.0 5.65 1.72
1400.0 5.9 1.8
1500.0 6.14 1.87
1600.0 6.38 1.95
1700.0 6.62 2.02
1794.0 6.83 2.08
1800.0 6.85 2.09