UHF Leaky Feeder Cable
A UHF (Ultra-High Frequency) leaky feeder cable is designed for transmitting and receiving radio signals in underground or confined areas such as mines, tunnels, and buildings. It plays a crucial role in maintaining reliable wireless communication in challenging environments by enabling signals to propagate and reach areas that would otherwise be inaccessible for direct communication.
Features
Construction Material
- Inner Conductor: Copper-clad Aluminum, 4.8 ± 0.02 mm diameter
- Insulation: Foam PE, 12.20± 0.2 mm diameter
- Outer Conductor: Corrugated copper tube, Milled slots, 13.80± 0.2 mm diameter
- Jacket: PE /LSZH, Black, 15.80± 0.2 mm diameter
Electrical Properties
- Impedance: 50 ohm ± 2.0 ohm
- Capacitance: 75 pF/m
- Velocity: 88%
- Insulation Resistance: 10000 MΩ/km
- Isolation Voltage: 6 kV
- V.S.W.R: ≤ 1.30 (0-2400MHz)
Mechanical Properties
- Bend Radius Min.: 90 mm
- Tensile Strength: 1100 N
- Recommended temperature:
- Storage: -40~+80°C
- Installation: -40~+80°C
- Operating: -40~+80°C
Signal
Attenuation and Average Power
Frequency
MHz |
Attenuation
@20°C dB/100m |
Coupling loss
@20°C dB |
75 | 2.20 | 63 / 74 |
150 | 3.10 | 67 / 77 |
450 | 5.70 | 71 / 83 |
800 | 7.80 | 75 / 86 |
900 | 8.30 | 74 / 85 |
1800 | 13.50 | 71 / 82 |
2200 | 14.70 | 73 / 84 |
2400 | 15.50 | 71 / 83 |
Max. attenuation value shall be 105% of the nominal attenuation value.
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