CTE-N08c — Modern DME Transponder

The foreseen introduction of RNP 1 applications in selected TMAs will be enabled by GNSS as primary means of navigation. However, due to the current GNSS vulnerabilities (e.g. low resilience to RFI) in short/medium term, a terrestrial backup is still needed mainly to ensure business continuity in case of GNSS outages. In order to avoid the impact on the safety of air operations the service provided by the ground DME infrastructure must respect more stringent performance requirements in terms of accuracy, integrity and continuity. This enabler is related with the DME transponders based on the latest technologies which enable this higher level of performance.