Technical Data Sheet
RLKU12-50JFNA
1/2" RADIAFLEX® RLKU 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
  • Ultra wideband from 30 MHz to 2700 MHz
  • For applications in tunnels and buildings
  • Low coupling loss variations
RLKU12-50JFNA
Technical Specifications
Size [ in ] 1/2"
Maximum Frequency [ MHz ]  2700.0
Cable Type RLKU
Jacket JFN
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 Strip
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) ] 650-750, 1330-1430, 2025-2100
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)49 (53)59 (63)
1503.10 (0.94)57 (61)68 (72)
4505.74 (1.75)65 (68)76 (79)
8008.75 (2.67)57 (59)63 (65)
8709.21 (2.81)58 (60)64 (66)
9009.40 (2.86)58 (60)63 (66)
9609.73 (2.97)58 (60)64 (66)
180021.97 (6.70)55 (57)65 (67)
190022.71 (6.92)55 (57)65 (67)
200023.48 (7.16)53 (56)65 (66)
220025.47 (7.76)52 (55)60 (63)
240027.93 (8.51)52 (54)60 (63)
260030.50 (9.30)52 (54)60 (63)
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 (below 650 MHz) or parallel (above 650 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.