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7/8" Leaky Cable

Description

7/8" Leaky Cable7/8" Leaky Cable is a type of RF coaxial cable which has gaps or slots in its outer conductor to allow the radio signal to leak into or out of the cable along its entire length so the cable functioning as extended antennas. It is suitable for wireless communication in narrow or long, curvy surroundings, such as mining, in buildings, tunnels, subways, high-speed trains, etc.



Specification

Specifications - Construction

Inner Conductor Copper tube Φ 9.1 mm
Dielectric Foamed polyethylene Φ 22.4 mm
Outer Conductor Slotted and Corrugated copper tube Φ 24.9 mm
Jacketing Black, halogen-free fire-retardant thermoplastic /
Black, halogen-free polyethylene (optional)
Φ 27.5 mm
Marking Trademark, cable type, manufacture week, year, batch number and meter mark --

Specifications - Electrical Characteristics at +20°C

Characteristic Impedance 50 ± 1 Ω
VSWR ≤1.3
Attenuation See table below
Velocity Factor 0.89
Capacitance 76.0 pF/m
Maximum Frequency 2500 MHz
Coupling Loss See table below
Peak RF Voltage Rating 6 kV
Peak Power Rating 91.0 kW
DC resistance Inner conductor: 1.05 Ω/km, Outer conductor: 1.18 Ω/km
Frequency (MHz) Attenuation (dB/100m) Coupling Loss (50%/90%,dB) Frequency (MHz) Attenuation (dB/100m) Coupling Loss (50%/90%,dB)
75 1.2 62/72 900 4.6 80/89
150 1.7 65/75 1800 6.9 77/86
450 3.1 71/81 2000 7.8 80/88
800 4.3 75/85 2400 8.6 80/89

* Attenuation and Coupling Loss values are typical at ambient temperature +20°C.


Specifications - Mechanical Characteristics

Weight 0.44 kg/m
Maximum Pulling Force 144 KG
Minimum Bending Radius Single Bending: 120mm, Repeated Bending: 254 mm
Operating Temperature Range -55 ~ +80 °C