ANDREW~1/2" Air Helx/Plen Red HELIAX® Coaxial Cable, 1/2 in, RED PVC jacket. 50 Ohm Aluminum outer conductor and a copper-clad aluminuminner conductor. This transmission line uses L4Txx-PSA style connectors. Maximum frequency capacity is 6.0 GHz. No automated prep tool available for this air dielectric cable.