Antennas; satellite dishes; satellite antennas; television antennas; antennas for telecommunications networks; radio signal antennas; component parts for antennas; filters for antennas; antennas for wireless communications apparatus; antenna parameter measuring apparatus; zone plate antennas; masts for aerials; aerial combiners; aerial converters; magnetic wires; fuse wire; light conducting filaments [optical fibers]; antenna transmission wire; antenna positioners; aerial sockets; signal transmission apparatus; sound transmitting apparatus; radio receiving and transmitting apparatus; cables for optical signal transmission; cables for electrical signal transmission; satellite receiving and transmission apparatus and instruments; cables for electrical or optical signal transmission; satellite broadcast receiving and decoding apparatus and instruments; Global Positioning System [GPS] apparatus; Global Positioning System [GPS] receivers; Global Positioning System [GPS] transmitters; radio frequency adapters; radio frequency amplifiers; radio frequency receivers; radio frequency repeaters; radio frequency transmitters; filters for radio interference suppression; radio-frequency controlled locks; acoustic couplers; jump start cables; fiber optic couplings; electric apparatus for commutation; satellite navigational apparatus; transponders; radar apparatus; radar receivers; radar transmitters; radio and television antennas; couplers [data processing equipment]; frequency converters.

Satellite dish installation and repair; antenna installation and repair; installation, maintenance and repair of catalytic converters; electric appliance installation and repair; telephone installation and repair; installation, maintenance and repair of telephone and communication equipment; installation, maintenance and repair of hardware for data communication networks; installation and maintenance of hardware for computer networks and Internet access; installation and maintenance of electronic apparatus (for others).