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GPS Spoofing and Flight Disruptions at Delhi Airport Explained

November 06, 2025

  • Vulnerable to spoofing, as it depends on satellite inputs.

    • Safety Measures Taken

    • Pilots are being briefed through ATIS (Automatic Terminal Information Service) to:

      • Cross-check raw navigation data.

      • Monitor GPS integrity via RAIM/GBAS systems.

      • Revert to conventional navigation aids or visual procedures when anomalies are detected.

    • Airlines: Identifying spoofing-prone zones and tightening diversion protocols.

    • Airport Authorities: Speeding up the ILS Cat III upgrade to restore radio-based landing guidance and reduce GPS dependence.

    Exam-Oriented Facts

    1. GPS Spoofing → Injects false satellite data ; Jamming → Blocks signals .

    2. ILS Cat III → Enables landings in near-zero visibility (dense fog).

    3. RNP Approaches → Require verified GPS accuracy and integrity.

    4. Delhi Case → First documented GPS spoofing incident at IGIA.

    5. Spoofing Zones → Commonly observed near conflict regions (e.g., Eastern Europe, Middle East).

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