ICAO Document 9849 Global Navigation Satellite Systems (GNSS)

The official technical reference manual ICAO Document 9849 GNSS (formally titled Global Navigation Satellite System (GNSS) Manual / Manual sobre el sistema mundial de navegación por satélite) is a specialized publication prepared by the International Civil Aviation Organization (ICAO / OACI). This 5th Edition (2025) provides fundamental guidance to assist member States and air navigation service providers in planning, transitioning to, and implementing satellite-based flight operations. It serves as an essential technical reference for every commercial pilot, flight dispatcher, regulator, and flight engineer.

The document details the industry transition away from traditional ground-based radio aids (such as VOR or ILS) toward a modern satellite-based air traffic ecosystem. It defines the technical framework covering core constellations including GPS, GLONASS, Galileo, and BeiDou. Furthermore, it addresses aircraft-based, satellite-based, and ground-based augmentation systems (ABAS, SBAS, and GBAS), alongside multi-frequency usage and signal protection against radio frequency interference. Designed to be applied strictly in conjunction with ICAO Annex 10, Volume I, it ensures maximum safety during air navigation across global air transport routes. To explore additional official documents, international flight regulations, and technical aviation manuals, browse our catalog in the ICAO official documents and satellite navigation manuals for the aviation pilot section.

This current 5th Edition (2025), which incorporates Corrigendum No. 1, spans approximately 110 to 130 pages depending on language layout and appendices. It is published in a softcover paperback edition for limited print distribution and is available in English, Spanish, French, Russian, Arabic, and Chinese. It represents an indispensable reference for flight academies, civil aviation authorities, airline flight operations departments, prospective captain candidates, first officers, and active professionals across the global aviation industry and modern aeronautics.

Features of ICAO Document 9849 GNSS

• 📖 Official Title: Global Navigation Satellite System (GNSS) Manual (ICAO Doc 9849)
• 🏛️ Author & Publisher: International Civil Aviation Organization (ICAO / OACI)
• 🔢 Document Code: Doc 9849 (Part Number: 9849-ES for Spanish edition / Standard English edition)
• 📅 Current Edition: 5th Edition (2025) (Includes current updates and Corrigendum No. 1)
• 📄 Page Count: ~110 to 130 pages (varies by language layout and appendices)
• 📘 Format & Binding: Softcover paperback (Limited physical print edition)
• 🛰️ Core Systems Covered: GPS, GLONASS, Galileo, and BeiDou | ABAS, SBAS, and GBAS augmentations
• ⚖️ Regulatory Scope: Direct integration with ICAO Annex 10, Volume I technical provisions
• 🌍 Languages Available: English, Spanish, French, Russian, Arabic, and Chinese

Frequently Asked Questions (FAQs)

What is the primary objective of ICAO Document 9849 GNSS?

It delivers essential guidelines for planning and implementing satellite-based flight operations for every pilot and ANSP.

Which satellite navigation systems are covered inside this ICAO manual?

It covers GPS, GLONASS, Galileo, BeiDou, ABAS, SBAS, GBAS, and RF interference mitigation in aviation.