Aerials; Duplexers; Antenna filters; Cable connectors; Cable jump leads; Cable junctions for electric cables; Coaxial cables; Electric cables, wires, conductors and connection fittings therefor; Electrical and optical cables; Electrical connectors; Electrical signal attenuators; Fibre optic cables; Filters for radio interference suppression; Lightning arresters; Lightning conductors; Masts for wireless aerials; Optical fiber connectors; Power amplifiers; Power wires; Radio-frequency antennas