NAV Portugal manages a vast airspace across the Lisbon and Santa Maria flight information regions (FIR). The Santa Maria FIR alone covers more than 5 million square kilometres of North Atlantic airspace and is a major corridor for overflight traffic between Europe, North Africa, and the Americas. This scale calls for an integrated, ATM-grade surveillance network that can extend coverage, integrate new technologies, and adapt to growing traffic.

With Frequentis Surveillance Data Distribution System – next generation (SDDS-NG), NAV Portugal brings radar, ADS-B, space-based ADS-B, and multilateration data together in one seamless and resilient surveillance ecosystem. The scalable, ATM-grade infrastructure supports reliable data distribution across its vast airspace and enables new surveillance sources to be integrated as coverage and operational needs evolve.