HLF/LMR 300 Coaxial Cable
HLF/LMR 300 Coaxial Cable is a high-performance low-loss RF cable designed for reliable signal transmission in wireless communication and telecommunications systems. Its durable construction provides excellent shielding, reduced signal attenuation, and stable electrical performance across demanding applications. The flexible design supports easy routing and installation while maintaining signal integrity. HLF/LMR 300 Coaxial Cable is suitable for antenna systems, base stations, wireless networks, telecom infrastructure, RF equipment, broadcast systems, and professional cable assemblies. It delivers dependable connectivity, mechanical durability, and consistent RF performance for modern communication and high-frequency applications.
Construction
| Conductor Material | Solid Bare Copper |
| Stranding | 1 / 1.78 mm |
| Dielectric | Foamed Polyethylene (FPE) |
| Diameter of Dielectric | 4.83 mm |
| Screen Material (1) | Bonded Aluminum/Polyester/Aluminum Tape (100%) |
| Screen Material (2) | Tinned Copper Wire Braid (87%) |
| Outer Sheath Material | Polyethylene – UV Resistant |
| Outer Sheath Color | Black |
Electrical Characteristics
| Impedance | 50Ω |
| Cutoff Frequency | DC – 8 GHz |
| Velocity of Propagation | 83% |
| Dielectric Constant | 1.56 |
| Shielding Effectiveness | >90 dB |
| Withstand Voltage | 2.5 kV |
| Jacket Spark | 5.0 kV (rms) |
| Capacitance | 24.5 pF/ft (78.4 pF/m) |
| Inductance | 0.060 µH/m |
| Conductor Resistance | ≤ 7.0 Ω/Km |
| Outer Conductor Resistance | ≤ 7.7 Ω/Km |
| Return Loss | ≥ 15 dB |
| Peak Power | 10.0 kW |
Physical Characteristics
| Overall Diameter | 7.6 mm |
| Min. Bend Radius | 22.2 mm |
| Temperature Rating | -30°C to +85°C |
| Weight | 80 kg/km |
| Frequency (MHz) | Attenuation (dB/100 ft) | Attenuation (dB/100 m) |
|---|---|---|
| 30 | 1.2 | 3.8 |
| 50 | 1.4 | 4.7 |
| 150 | 2.3 | 7.6 |
| 220 | 2.8 | 9.2 |
| 450 | 4.1 | 13.5 |
| 900 | 6.0 | 19.6 |
| 1500 | 7.8 | 25.7 |
| 1800 | 8.6 | 28.3 |
| 2000 | 9.1 | 30.0 |
| 2500 | 10.3 | 54.3 |