RFS 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. 

RAYA158-50JFLA.  1-5/8 in RADIAFLEX Cable, Ultra Wideband, Halogene Free, Polyethylen, PE, Flame Retardant, Low Smoke Zero-Halogen