Information technology and audio-visual, multimedia and photographic equipment; communications equipment; audio devices and radio receivers; radios; broadcasting equipment; antennas and aerials as communications equipment; signal cables for it, av and telecommunication; electrical and electronic components; antennas and aerials as components; system and system support software, and firmware; firmware and device drivers.
Electrical and Scientific ApparatusComputer hardware and telecommunication equipment installation, maintenance and repair; maintenance of communications equipment; installation of communication equipment; advisory services relating to the installation of communication equipment; installation of radios; radio repair.
Building Construction and RepairDevelopment of software for communication systems; maintenance and updating of software for communication systems; consultancy relating to software for communication systems; engineering services in the field of communications technology; engineering services relating to the design of communications systems; design of communication systems; calibration services relating to electronic apparatus; engineering services relating to the design of electronic systems; electrical engineering services; testing of apparatus in the field of electrical engineering; analysis and testing services relating to electrical engineering apparatus; design of mechanical, electromechanical and optoelectronic apparatus and instruments.
Computer and Scientific