Technical Data Sheet
RLKW12-50JFLA
1/2" RADIAFLEX® RLKW Cable, A-series
Product Description
  • 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 smooth copper outer conductor which offers a superior electrical performance together with good bending properties.
Features/Benefits
  • Wideband from 30 MHz to 1950 MHz
  • For applications in tunnels and buildings
  • Low coupling loss variations
RLKW12-50JFLA
Technical Specifications
Size [ in ] 1/2"
Maximum Frequency [ MHz ]  1950.0
Cable Type RLKW
Jacket JFL
Slot Design Groups of vertical slots at short intervals
Previous Model Number  
Impedance [ Ω ] 50.0
Velocity [ % ] 88.0
Capacitance [pF/m (pF/ft)]  
Inductance [ µH/m (µH/ft)]  
Inner Conductor dc Resistance [ Ω/km (1000 ft) ]  
Outer Conductor dc Resistance [ Ω/km (1000 ft) ]  
Outer Conductor Material:  Overlapping Copper Foil
Inner Conductor Material:   Copper Clad Aluminum Wire
Diameter over Jacket [ mm (in) ]  
Diameter Outer Conductor: [ mm (in) ]  
Diameter Inner Conductor: [ mm (in) ]  
Minimum bending radius, single bending [ mm (in) ]  
Cable Weight [ kg/m (lb/ft) ]  
Max. tensile force [ N (lb) ]  
Indication of Slot Alignment Bulge atop slots
Storage temperature [ °C (°F) ] -70.0 to 85.0 (-94.0 to 185.0 )
Installation temperature [ °C (°F) ] -25.0 to 60.0 (-13.0 to 140.0 )
Operation temperature [ °C (°F) ] -40.0 to 85.0 (-40.0 to 185.0 )
Stop band [ MHz) ] 115-135, 235-255, 360-375, 475-505, 600-630, 720-750, 970-1075, 1340-1460, 1590-1700
Recommended / maximum clamp spacing [ m (ft) ] 0.5 (1.6)
Minimum Distance to Wall [ mm (in) ]  
Length [ m (ft) ]  
Rev. Number  
Table of Losses

Frequency, MHzLongitudinal Loss, dB/100 m (dB/100 ft)Coupling Loss 50%, dBCoupling Loss 95%, dB
752,17 (0,66)45 (49)56 (60)
1503,10 (0,94)58 (58)64 (67)
4505,74 (1,75)58 (62)62 (66)
8007,89 (2,40)61 (62)63 (66)
8708,33 (2,54)59 (62)66 (69)
9008,63 (2,63)59 (62)66 (69)
9608,92 (2,72)59 (62)66 (69)
180020,60 (6,28)51 (54)63 (66)
190021,62 (6,59)50 (53)62 (65)
Standard conditions
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 measured with a radial or parallel (125-800 MHz) orientated dipole antenna.
  • The coupling loss values given in brackets are average values of all three spatial orientations (radial, parallel and orthogonal) of dipole antenna.
  • Coupling loss values are given with a tolerance of +5 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.
  • In case of a conflict of operational and stop band, please contact RFS for further assistance.
  • As with any radiating cable, the performance in building or tunnel environments may deviate from figures based on free space method.
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All Information contained in the present datasheet is subject to confirmation at time of ordering.