SRFS Teleinfra

Economical LF 520

Economical LF 520

Economical LF 520 is a reliable low-loss RF coaxial cable designed for efficient signal transmission in wireless communication, telecom, broadcast, and electronic systems. It offers dependable electrical performance, flexibility, and durability for demanding installation environments. The cable is suitable for applications where stable impedance, low attenuation, and consistent RF performance are required. Economical LF 520 can be used in antenna feeder systems, RF equipment interconnections, base stations, and communication infrastructure. Its robust construction supports long-term operation while providing an economical solution for professional RF and telecommunications applications requiring dependable connectivity and signal integrity.

Cable Construction

No. Construction Size (mm) Materials
1 Center Conductor 1.29 Solid Silver-plated copper
2 Dielectric 3.90 Low density PTFE
3 Outer Conductor 4.15 Silver-plated flat copper ribbon braid
4 Interlayer 4.28 Aluminum foil wrap
5 Outer Shield 4.73 Silver-plated copper wire braid
6 Jacket 5.20 FEP

Electrical

Frequency DC-18 GHz
Impedance 50 Ω
Velocity of Propagation 76%
Shielding Effectiveness >100 dB
Withstanding Voltage 1500 V
Mechanical Phase Stability* <±6°
Amplitude Stability vs Shaking <±0.2 dB
* Wrapped 360° around a 52mm radius mandrel.

Mechanical & Environmental

Min. Bending Radius Static 25mm
Min. Bending Radius Repeated 52mm
Weight 60g/m
Temperature (Operation) -50~150 °C
Temperature (Storage) -60~160 °C

Bulk Cable Attenuation

Frequency MHz 400 500 1000 1350 1500 6000 8000 10000 12400 14000 18000
dB/100 Meter 17.4 19.4 27.7 32.3 34.0 69.9 81.3 91.5 102.7 109.6 125.5
Avg. Power kW 1.201 1.072 0.754 0.646 0.612 0.298 0.256 0.228 0.203 0.190 0.166
K1 = 0.856233 K2 = 0.000591