aerial amplifiers; aerials for wireless communications apparatus; aerials; telecommunication aerials; antennas; car antennas; apparatus and instruments for recording, transmission or reproduction of sound, data or images; apparatus for broadcasting, recording, transmission or reproduction of sound, data or images; apparatus for data transmission and data communication; cellular telecommunications apparatus; telecommunication antennas; antennas being communications apparatus; antennas for wireless communications apparatus; wireless signal repeaters; wireless receivers; wireless signal transmitters; wireless transmitters