Heliax Cable Wire, Heliax Cable is part of Allied Wire and Cable’s extensive stock of Coaxial Cable in fact.

This selection of Coaxial Cables is designed for signal transfers in am/FM radio, UHF/VHS TV, and other communication systems in fact.

In fact, heliax is a trademarked name for Hard-Line cable. Hardline is used in broadcasting as well as many other forms of radio communication.

It is a coaxial cable constructed using round copper, silver or gold tubing or a combination of such metals as a shield in fact.

Some lower-quality hard line may use aluminum shielding, aluminum, however, is easily oxidized and unlike silver or gold oxide, aluminum oxide drastically loses effective conductivity.

Therefore all connections must be air and watertight. The center conductor may consist of solid copper or copper-plated aluminum in fact.

Since skin effect is an issue with RF, copper plating provides sufficient surface for an effective conductor.

Most varieties of hardline used for external chassis or when exposed to the elements have a PVC jacket; however, some internal applications may omit the insulation jacket.

Hardline can be very thick, typically at least a half-inch or 13 mm and up to several times that, and has low loss even at high power.

Then these large-scale hard lines are almost always used in the connection between a transmitter on the ground and the antenna or aerial on a tower.

Heliax Cable Wire: Types

FSJ1-50A501/4”Standard Andrew Superflexible Heliax Cable: Standard Cable, Standard Jacket.
FSJ1RK-50B501/4”Andrew Superflexible Fire Retardant Heliax Cable: 
Fire Retardant Black Jacket (CATVR or CATVX).
EC1-50501/4″EUPEN 1/4″ Standard Foam Coax Cable
EC1-50HF501/4″EUPEN 1/4″ Hi-Flex Foam Coax Cable
LDF1-50501/4”Standard Andrew Heliax Cable: Standard Cable, Standard Jacket.
LDF2-50A503/8”Standard Andrew HeliaxCable: Standard Cable, Standard Jacket.
LDF2RK-50A503/8”Fire Retardant Andrew Heliax Cable: Fire Retardant Black Jacket (CATVR).
FSJ4-50B501/2”Standard Andrew Superflexible Heliax Cable: Standard Cable, Standard Jacket.
FSJ4RK-50B501/2”Superflexible Andrew Fire Retardant Heliax Cable: Fire Retardant Black Jacket (CATVR).
EC4-50501/2″EUPEN  1/2″ Standard Foam Coax Cable (Also available in Fire Retardant – Special order)
EC4-50HF501/2″EUPEN  1/2″ Hi-Flex Foam Coax Cable (Also available in Fire Retardant – Special order)
LDF4-50A501/2”Standard Andrew Heliax Cable: Standard Cable, Standard Jacket.
LDF4RK-50A501/2”Fire Retardant Andrew Heliax Cable: Fire Retardant Jacket (CATVR or CATVX).
LDF4-75A751/2”Standard Andrew Heliax Cable: Standard Cable, Standard Jacket. (See LMR600-75)
HL4RPV-50A501/2”Plenum Rated, Air Dielectric Cable, White Jacket

Construction Materials

Jacket Material PE

Then Outer Conductor Material Corrugated copper

Dielectric Material Foam PE

Then Flexibility Standard

Inner Conductor Material Copperclad

aluminum wire

Lastly jacket Color Black


Nominal Size 1/2 in

Then Cable Weight 0.15 lb/ft | 0.22 kg/m

Diameter Over Dielectric 12.954 mm | 0.510 in

Then Diameter Over Jacket 15.875 mm | 0.625 in

Inner Conductor OD 4.8260 mm | 0.1900 in

Then Outer Conductor OD 13.970 mm | 0.550 in

Electrical Specifications

Cable Impedance 50 ohm ±1 ohm

Then dc Test Voltage 4000 V

Capacitance 23.1 pF/ft | 75.8 pF/m

Then dc Resistance, Inner Conductor 0.450 ohms/kft | 1.480 ohms/km

Then dc Resistance, Outer Conductor 0.580 ohms/kft | 1.903 ohms/km

Inductance 0.190 μH/m | 0.058 μH/ft

Then Insulation Resistance 100000 MOhm

Jacket Spark Test Voltage (rms) 8000 V

Then Operating Frequency Band 1 – 8800 MHz

Peak Power 40.0 kW

Then Pulse Reflection 0.5%

Lastly Velocity 88%

Environmental Specifications

Installation Temperature 40

°C to +60 °C (40

°F to +140 °F)

Coaxial cables are essentially just cables made of wire which carry radio or television signals in fact.

Also, they are used for carrying television networks from a distributor to individual houses, which is why the service is known as Cable TV.

Their distinct thick, the round shape is due to a heavy layer of interior insulation which is designed, in part, to reduce the effect of magnetic fields on the signal the cable carries.

As well as reduce the amount of signal loss which occurs as signals pass through great lengths of coaxial cable.

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