ModeSRadar
European Supplement
urn:aero:ses:eurocontrol:airm:1.0.0:ConceptualModel:Subjects:BaseInfrastructure:SurveillanceInfrastructure:ModeSRadar
A co-operative surveillance and communication system that has been designed as an evolutionary improvement to the existing SSR system. With a Mode S radar, only one scheduled surveillance interrogation and one reply are required on every antenna scan to accurately track the aircraft. Each aircraft reply has a unique 24 bit mode S address permanently associated with the aircraft.