Specifications
Product Classification
Regional Availability | North America |
Product Type | Coaxial hardline cable |
Product Brand | QR® |
Government Funding | Build America Buy America (BABA) compliant* |
General Specifications
Cable Type | 860 Series |
Construction Type | Welded |
Jacket Color | Black |
Short Description | QR 860 JCASS SM PR2171 |
Dimensions
Cable Length | 899.16 m | 2950 ft |
Diameter Over Center Conductor, nominal | 5.156 mm | 0.203 in |
Diameter Over Dielectric, nominal | 21.031 mm | 0.828 in |
Diameter Over Jacket, nominal | 24.384 mm | 0.96 in |
Diameter Over Outer Conductor, nominal | 21.844 mm | 0.86 in |
Jacket Thickness, nominal | 1.143 mm | 0.045 in |
Outer Conductor Thickness, nominal | 0.406 mm | 0.016 in |
Electrical Specifications
Capacitance | 50.197 pF/m | 15.3 pF/ft |
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 | 1.345 ohms/km | 0.41 ohms/kft |
dc Resistance, Loop, nominal | 2.395 ohms/km | 0.73 ohms/kft |
dc Resistance, Outer Conductor, nominal | 1.05 ohms/km | 0.32 ohms/kft |
Jacket Spark Test Voltage | 5000 Vac |
Nominal Velocity of Propagation (NVP) | 88 % |
Operating Frequency Band | 5–3000 MHz |
Structural Return Loss | 24 dB @ 1003–1218 MHz | 24 dB @ 1219–1794 MHz | 30 dB @ 5–1002 MHz |
Structural Return Loss, Grade N | ≥24 dB @ 1003–1218 MHz | ≥24 dB @ 1219–1794 MHz | ≥30 dB @ 5–1002 MHz |
Attenuation
Frequency | Attenuation (dB/100 m) | Attenuation (dB/100 ft) |
5.0 MHz | 0.300 | 0.090 |
55.0 MHz | 1.050 | 0.320 |
85.0 MHz | 1.310 | 0.400 |
204.0 MHz | 2.070 | 0.630 |
211.0 MHz | 2.100 | 0.640 |
250.0 MHz | 2.300 | 0.700 |
300.0 MHz | 2.490 | 0.760 |
350.0 MHz | 2.720 | 0.830 |
400.0 MHz | 2.890 | 0.880 |
450.0 MHz | 3.120 | 0.950 |
500.0 MHz | 3.280 | 1.000 |
550.0 MHz | 3.480 | 1.060 |
600.0 MHz | 3.610 | 1.100 |
750.0 MHz |