We have to protect satellite navigation from interference

With increasing incidents of interference with aviation, maritime and telecommunications services, it is urgent that States enhance their protection of the critical radio-frequency band. ICAO, along with the International Telecommunication Union (ITU) and International Maritime Organization (IMO) have addressed this “grave concern” in the joint statement to UN Member States that is shared below.

These cases of harmful interference are in the form of jamming and spoofing that disrupt Global Navigation Satellite Systems (GNSS) operating in the frequency bands allocated to the Radio Navigation Satellite Service (RNSS). Radio navigation aids provide pilots with vital information about their aircraft’s position, course and altitude. They offer precise and accurate guidance to pilots, enabling more efficient airspace management and helping to optimize air traffic routes and procedures.

“Radio Navigation Satellite Service interference can impact aircraft operations far beyond the immediate affected area, creating potential safety risks across multiple flight regions,” remarked ICAO Secretary General Juan Carlos Salazar. “ICAO is fully committed to working closely with Member States to implement these protective measures through existing aviation safety frameworks and standards.”

The joint statement identifies five key actions required from Member States:

1. Protection of RNSS from harmful interference affecting civilian and humanitarian operations
2. Strengthening resilience of RNSS-dependent navigation, positioning, and timing systems
3. Maintaining conventional navigation infrastructure for contingency support
4. Enhancing collaboration between regulatory, aviation, maritime, defense, and enforcement authorities
5. Implementing comprehensive interference reporting mechanisms

This initiative builds on ICAO Assembly Resolution A41-8/C, which urges States to ensure close collaboration between aviation authorities, military authorities, service providers, and spectrum enforcement authorities to protect Communication and Navigation Systems.

The Resolution specifically calls on States to refrain from any form of jamming or spoofing affecting civil aviation and to coordinate with air navigation service providers when military or security operations might affect civil aviation operations.