RCF78-50JFNA
7/8" RADIAFLEX® RCF Cable, A-series

Rev : A | Rev date : 22 Oct 2020

RADIAFLEX® functions as a distributed antenna to provide communications in tunnels, mines and large building complexes and is the solution for any application in confined areas.
Slots in the copper outer conductor allow a controlled portion of the internal RF energy to be radiated into the surrounding environment. Conversely, a signal transmitted near the cable will couple into the slots and be carried along the cable length.
RADIAFLEX® is used for both one-way and two-way communication systems and because of its broadband capability, a single radiating cable can handle multiple communication systems simultaneously.
This RADIAFLEX® radiating cable utilize a low-loss cellular polyethylene foam dielectric and a corrugated copper outer conductor which offers a combination of remarkable flexibility, high strength and excellent electrical performance.

FEATURES / BENEFITS

Broadband radiating cable supporting all wireless application between 30 MHz to 2750 MHz
Ideally suited for application that require low bending radii
Robust radiating cable operational under all enviromental conditions as e.g. harsh tunnels or mines

RCF cable, A-series

Technical features

General Specifications
Size		7/8

Electrical Specifications
Max. Operating Frequency	MHz	3800
Cable Type		RCF
Impedance	Ohm	50 +/- 2
Velocity, percent	%	89
Capacitance	pF/m (pF/ft)	75 (22.9)
Inductance, uH/m (uH/ft)	µH/m (µH/ft)	0.188 (0.057)
DC-resistance inner conductor, ohm/km (ohm/1000ft)	Ω/km (Ω/1000ft)	1.54 (0.47)
DC-resistance outer conductor, ohm/km (ohm/1000ft)	Ω/km (Ω/1000ft)	1.74 (0.53)
Stop bands	MHz	None
Frequency Selection	MHz	600, 900, 1800/1900, 2200, 2400, 2500, 2700

Mechanical Specifications
Jacket		JFN
Jacket Color		Standard Black, other colors on request
Jacket Description		Halogen free, non corrosive, flame retardant, low smoke, polyolefin
Slot Design		Milled (Two-Row)
Inner Conductor Material		Copper Tube
Outer Conductor Material		Corrugated Copper Tube
Diameter Inner Conductor	mm (in)	9.3 (0.37)
Diameter Outer Conductor	mm (in)	25.2 (0.99)
Diameter over Jacket Nominal	mm (in)	27.8 (1.09)
Minimum Bending Radius, Single Bend	mm (in)	250 (10)
Cable Weight	kg/m (lb/ft)	0.6 (0.4)
Tensile Force	N (lb)	1440 (317)
Indication of Slot Alignment		None
Recommended / Maximum Clamp Spacing	m (ft)	0.9 (3)
Minimum Distance to Wall	mm (in)	50 (1.97)

Testing and Environmental
Jacket Testing Methods		Test methods for fire behaviour of cable : IEC 60754-1/-2 smoke emission, halogen free, non corrosive IEC 61034 low smoke IEC 60332-1 flame retardant

Temperature Specifications
Storage Temperature	°C(°F)	-70 to 85 (-94 to 185 )
Installation Temperature	°C(°F)	-25 to 60 (-13 to 140 )
Operation Temperature	°C(°F)	-40 to 85 (-40 to 185 )

External Document Links

Notes

Coupling loss as well as longitudinal attenuation of RADIAFLEX® cables are measured by the free space method according to IEC 61196-4.
Coupling loss values are average values of all three spatial orientations (radial, parallel and orthogonal) of dipole antenna.
Coupling loss values are given with a tolerance of +10 dB and longitudinal loss values with a tolerance of +5%. Note: Measured values below nominal are better. They are not limited by any tolerance-range.
As with any radiating cable, the performance in building or tunnel environments may deviate from figures based on free space method.

RCF78-50JFNA7/8" RADIAFLEX® RCF Cable, A-series