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Galileo sends first signals

Giove-A, the first Galileo pilot satellite launched on December 28th, has transmitted its signals to the Earth stations using the Navigation Signal Generation Unit (NSGU) and the wide-band Navigation Antenna developed by Alcatel Alenia Space. Giove-A main objective is to secure access to the frequencies allocated by the International Telecommunications Union (ITU) for the Galileo system. Signals are broadcasted through an L-band phased-array antenna designed to cover the visible Earth from the Medium Earth Orbit.