Electrical, optical, opto-electrical and radio devices and components for signal and data transmission by means of stationary and mobile transmitting and receiving units in transmission networks or via radio links, especially antennas, transmitters, receivers, transceivers, amplifiers, converters, feeds, polarization filters, modulators, demodulators, decoders, multi-switches, power supply units, radio analyzers for audio and TV, devices for diversity reception; diplexers, filters, distributors for equal and different division of HF-energy, directional couplers, matching circuits, antenna sockets, equalizers, level controls, attenuators, adapters, opto-electrical and electro-optical transducers, repeaters, modems, control units including software (such as network managers), audio/video switches; plug, socket, clamp and screw connectors; signaling terminal (including operation software) for building the infrastructure of signal and data transmission networks, especially consisting of star coupler, hubs, concentrators, repeaters, bridges, routers, multiplexers, cables, power supply units, blowers; mechanical, electrical and optical accessories for the aforesaid devices, especially housings, fastenings, supports (substrates) for contacts and components, contact elements, seals, covers, apertures, cables and lines, cable bushings and couplings, gland nuts, antenna telescopes including driving means therefore, antenna bases; parts of the above mentioned devices for use together with them as well as stationary and mobile units, transmission networks and radio relay equipments consisting of combinations of above mentioned devices and units

Maintenance and service concerning the units, networks and equipment listed in Class 9; repair of said devices

Technical advice, order planning and putting into operation of the units, transmission networks and equipment listed