Galileo Navigation Payloads: 2010-2020

Our Galileo navigation payload solution is based on European sourced atomic clocks, signal generators, high power TWTAs and antennas. Each payload is formed of a number of subsystems that combine to generate the navigation messages broadcast by the satellites directly to a user's receiver. 

• Timing Subsystem -  the heart of the navigation payload, containing two different types of highly accurate atomic clock.
• Mission Uplink Subsystem - receives the data messages sent to the satellites from the ground control system
• Signal Generator Subsystem - responsible for the generation of the navigation signals.
• RF Amplification Subsystem - transmits the navigation signals to the ground with a sufficient quality and power to enable a receiver to track them.
• Search and Rescue Payload - relays distress and co-ordination messages from COSPAS-SARSAT Search and Rescue service. 
• Laser Retroreflector Array - reflects laser light fired at the satellite to support the accurate tracking from the ground of the satellite in its orbit.