DGCA issues guidelines to address GNSS interference threats in Aviation

Guidelines issues by DGCA to curb the potential problems arising from jamming and spoofing of the GNSS

Following reported incidents in the Middle East, the aviation regulatory body, the Directorate General of Civil Aviation (DGCA), has released guidelines to airlines and the Airports Authority of India (AAI) regarding potential disruptions from jamming and spoofing of the Global Navigation Satellite System (GNSS).

The circular describes comprehensive strategies and actions to deal with possible problems that could affect pilots, air traffic controllers, aircraft operators, and Air Navigation Service Providers (ANSP). This includes working with equipment manufacturers to develop backup plans and assessing operating risk using safety risk analyses. AAI serves as the country’s ANSP, with air traffic controllers falling under its jurisdiction.

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The DGCA announced the issuance of an advisory circular regarding GNSS interference in airspace in a statement on Friday. The regulatory body stated that the circular focuses on the evolving risks of GNSS jamming and spoofing, identifies geographical areas of observation, and outlines potential impacts on both aircraft and ground-based systems.

Additionally, the circular outlines a system for ANSP to create a network for monitoring and analyzing threats, working closely with DGCA. This covers both preventive and reactive monitoring of GNSS interference reports to generate valuable insights and prompt responses. DGCA notes that the aviation sector faces uncertainties from emerging threats, particularly GNSS jamming and spoofing. The circular provides essential guidance and a clear roadmap, offering practical steps to address GNSS interference effectively in airspace, it further stated.