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.
RF Specification
Min. Frequency
0 GHz
Max. Frequency
8.8 GHz
Shielding Effectiveness
> 110 dB
Capacitance
76 pF/m
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
Flexibility
Semi-Flexible
Colour
Black
Min. Bend Radius Static
50 mm
Min. Bend Radius Dynamic
125 mm
Weight (g/m)
220 g
Cable Layers
| Layer | Diameter | Materials |
|---|---|---|
|
Inner Conductor
|
4.80 mm
|
|
|
Dielectric
|
12.30 mm
|
|
|
Outer Conductor
|
13.80 mm
|
|
|
Outer Jacket
|
15.70 mm
|
Manufacturer Variations
| Illustration | Manufacturer | Series | Full Name |
|---|---|---|---|
|
CommScope | FSJ4-50B | FSJ4-50B, HELIAX® Superflexible Foam Coaxial Cable, corrugated copper, 1/2 in, black PE jacket (Halogen free jacketing non-fire-retardant) |
|
CommScope | LDF4-50A | LDF4-50A, HELIAX® Low Density Foam Coaxial Cable, corrugated copper, 1/2 in, black PE jacket Halogen free jacketing non-fire-retardant |
|
CommScope | LDF4RK-50A | Commscope LDF4RK-50A 1/2" Heliax Cable, Fire Retardant |
|
CommScope | RSJ4-50 | RSJ4-50, HELIAX® Superflexible Foam Coaxial Cable, corrugated copper, 1/2 in, black PE jacket |