SRFS Teleinfra

1‐1/4" Radiation Leaky Cable

1‐1/4" Radiation Leaky Cable

The 1-1/4″ Radiation Leaky Cable is a specialized RF cable designed to provide controlled signal radiation along its length for wireless communication in challenging environments. It enables reliable radio coverage in tunnels, underground facilities, mines, transportation systems, industrial areas, and other enclosed spaces where conventional antennas may be ineffective. Engineered for consistent RF performance, the cable supports distributed antenna applications while maintaining dependable signal transmission. Its robust construction provides durability and reliable operation in demanding installations. The 1-1/4″ Radiation Leaky Cable is suitable for telecom, public safety, railway, and industrial communication networks.

Electrical, Mechanical & Environmental Specifications

Impedance (Ω) 50±2
Capacitance (pF/m) 76
Velocity (%) 88
Insulation Resistance (MΩ·km) 10000
Jacket Spark Test (kV) 10
Operating Frequency Band (MHz) 800~3700
Minimum Bending Radius (mm) Single Bending: 400
Multiple Bending: 500
Temperature Range (°C) Fire Retardant Jacket: -25~+70
Stop Band (MHz) 1400~1500
2850~2950
VSWR: 790MHz~960MHz 1.30
VSWR: 1700MHz~1900MHz 1.30
VSWR: 1920MHz~2025MHz 1.40
VSWR: 2110MHz~2170MHz 1.40
VSWR: 2300MHz~2400MHz 1.40
VSWR: 2515MHz~2675MHz 1.40
VSWR: 3300MHz~3700MHz 1.40

Construction

Inner Conductor Helical Copper-Tube Diameter (mm): 13.15±0.15
Insulation 3 layers of Insulation
Diameter (mm): 32.80±0.40
Outer Conductor Longitudinal wrapped copper outer conductor
Outer Conductor (mm) 34.20±0.40
Thickness (mm) 1.70±0.20
Diameter (mm) 37.60±0.40
Frequency (MHz) Attenuation (dB/100m, 20°C) Coupling Loss (95%, 2m)
800 MHz 2.70 94
900 MHz 3.10 90
1800 MHz 4.50 81
1900 MHz 4.80 79
2000 MHz 5.30 82
2200 MHz 5.60 79
2400 MHz 6.10 79
2600 MHz 6.70 75
2700 MHz 7.00 76
3300 MHz 8.90 75
3400 MHz 9.20 74
3500 MHz 10.30 76
3600 MHz 11.00 75
3700 MHz 11.60 74