COMMSCOPE
QR540
QR540 Commscope 75 Ohm QR® Trunk and Distribution Cable, black PE jacket
| Construction Materials | |
| Jacket Material | PE |
| Center Conductor Material | Copper-clad aluminum |
| Construction Type | Welded |
| Dielectric Material | PE |
| Outer Conductor Material | Aluminum |
| Dimensions | |
| Diameter Over Center Conductor, nominal | 3.150 mm | 0.124 in |
| Diameter Over Dielectric, nominal | 13.056 mm | 0.514 in |
| Diameter Over Outer Conductor, nominal | 13.716 mm | 0.540 in |
| Diameter Over Jacket, nominal | 15.494 mm | 0.610 in |
| Jacket Thickness, nominal | 0.8890 mm | 0.0350 in |
| Outer Conductor Thickness, nominal | 0.3429 mm | 0.0135 in |
| Cable Length | 1219 m | 4000 ft |
| Shipping Weight | 120.00 lb/kft |
| Electrical Specifications | |
| dc Resistance, Inner Conductor, nominal | 1.02 ohms/kft |
| dc Resistance, Outer Conductor, nominal | 0.59 ohms/kft |
| dc Resistance, Loop, nominal | 1.61 ohms/kft |
| dc Resistance Note | Nominal values based on a standard condition of 20 °C (68 °F) |
| Capacitance | 50.2 pF/m | 15.3 pF/ft |
| Capacitance Tolerance | ±1.0 pF/ft |
| Characteristic Impedance | 75 ohm |
| Characteristic Impedance Tolerance | ±2 ohm |
| Jacket Spark Test Voltage | 5000 Vac |
| Nominal Velocity of Propagation (NVP) | 88 % |
| Operating Frequency Band | 5–1000 MHz |
| Structural Return Loss | 30 dB @ 5–1000 MHz |
| Environmental Specifications | |
| Environmental Space | Aerial |
| General Specifications | |
| Brand | QR® |
| Cable Type | 540 series |
| Jacket Color | Black |
| Packaging Type | Reel |
| Short Description | QR 540 JCA SM PR2171 |
| Mechanical Specifications | |
| Minimum Bend Radius, bonded | 101.60 mm | 4.00 in |
| Pulling Tension, maximum | 41 kg | 90 lb |
Electrical Performance
| Frequency | Attenuation (dB/100 m) | Attenuation (dB/100 ft) |
| 5 MHz | 0.46 | 0.14 |
| 55 MHz | 1.56 | 0.48 |
| 83 MHz | 1.90 | 0.58 |
| 211 MHz | 3.12 | 0.95 |
| 250 MHz | 3.38 | 1.03 |
| 300 MHz | 3.71 | 1.13 |
| 350 MHz | 4.04 | 1.23 |
| 400 MHz | 4.33 | 1.32 |
| 450 MHz | 4.59 | 1.40 |
| 500 MHz | 4.89 | 1.49 |
| 550 MHz | 5.12 | 1.56 |
| 600 MHz | 5.38 | 1.64 |
| 750 MHz | 6.07 | 1.85 |
| 865 MHz | 6.56 | 2.00 |
| 1000 MHz | 7.12 | 2.17 |
- Attenuation listed represents maximum values at standard condition of 20 °C (68 °F)
Regulatory Compliance/Certifications
| Agency | Classification |
| RoHS 2011/65/EU | Compliant |
| ISO 9001:2008 | Designed, manufactured and/or distributed under this quality management system |
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