Definicija: The establishment and operation of satellite earth station networks; these services consist, as a minimum, in the establishment, by satellite earth stations, of radiocommunications to space segment ("uplinks", q.v.), and in the establishment of radiocommunications between space segment and satellite earth stations ("downlinks").

Definicija: konfiguracija dveh ali več prizemnih postaj, ki jih povezuje satelit

Definicija: "Satellite earth station network" shall mean a configuration of two or more earth stations which interwork by means of a satellite;