Half-Inch (1/2") corrugated coaxial cable is a heavy duty feeder cable designed for integration into large antenna systems. Half-Inch feeder cables are one of three main cable types used in passive Distributed Antenna Systems.

While designs can vary between manufacturers, half-inch cables always maintain a 15.87 mm outer diameter and use a 4.83 mm diameter inner conductor. This cable uses a solid corrugated copper outer conductor providing 110 dB of shielding effectiveness, and most importantly meets very low PIM targets.

1/2" half inch corrugated coaxial feeder cable commscope LDF4-50A

RF Specification

Min. Frequency
0 GHz
Max. Frequency
8.8 GHz
Shielding Effectiveness
> 110 dB
Capacitance
76 pF/m
RF Operating Voltage
1600 Vrms
dc Test Voltage
4000 V
Impedance
50 Ω
Inner Conductor Resistance
1.48 Ω/km
Outer Conductor Resistance
2.69 Ω/km
Velocity
88%
Peak Power
40.00 kW
Attenuation Table
Frequency Attenuation
1000 MHz
0.0728 dB/m

Physical Specification

Colour
Black
Min. Bend Radius Static
50 mm
Min. Bend Radius Dynamic
125 mm
Min. Operating Temperature
-55 °C
Max. Operating Temperature
85 °C
Weight (g/m)
220 g
Cable Layers
Layer Diameter Materials
Inner Conductor
4.80 mm
Copper Clad Aluminium (CCA)
Dielectric
12.30 mm
Foamed Polyethylene (EPE)
Outer Conductor
13.80 mm
Corrugated Copper Tube
Outer Jacket
15.70 mm
Polyethylene (PE)

Manufacturer Variations

Illustration Manufacturer Series Description
Commscope LDF4RK-50A half inch corrugated cable fire retardant non-halogenated
CommScope LDF4RK-50A

Commscope LDF4RK-50A HELIAX is a half-inch corrugated copper cable with a low-density foam dielectric. LDF4RK-50A is a sub-variant of Andrews LDF4-50A, with the RK variant using a non-halogenated and fire retardant polyolefin outer jacket.

The LDF4-50A series 1/2" cables have been manufactured by ...