9 [ Antennas; antennae filters; antennas for wireless communication apparatus; microwave antennae; ] amplifiers, [ optical filters; ] radio frequency filters; [ coaxial cables incorporating filters; ] semiconductors; electronic or electric circuits, namely, electrical circuit boards and printed circuit boards; [ electronic testing equipment, namely, telecommunication line integrity testing apparatus; electronic and optical communications instruments and components, namely, communication link testers for testing communications links; ] electronic chips for the manufacture of integrated circuits; optical, radio, satellite, data communications, electrical, transmitter and radio frequency receivers; radar receivers for use with weapons systems; radar receivers with amplifiers; wave receivers adapted for use with microwaves; electrical converters for analogue and digital signals; digital, electric, electronic, [ optical and ] signal amplifiers; [ wireless apparatus and instruments, namely, wireless computer peripherals; wireless radio transmitters and wireless transmission apparatus and receiving apparatus, namely, wireless telephones; electronic and optical communications instruments and components, namely, optical transmitters, receivers, data links transceivers and digital transmitters; ] microwave components, [ detectors ] and filters; microwave communications apparatus; [ optical wire cables; electrical and cable connectors and optical detectors and transmitters for use with fibre optic cable; high capacity broadband telecommunication switching apparatus; ] duplexers and multiplexers; equalisers and oscillators; [ frequency synthesizers; ] cellular telecommunications apparatus, namely, cellular mobile telephones telecommunications apparatus and instruments for use in cellular radio networks; transceivers