Also known as: ICAO, International Civil Aviation Organization

ICAO (the International Civil Aviation Organization) is the United Nations agency that standardises international civil aviation, including the ADS-B surveillance system and Mode S transponders.¹

ICAO sets international civil-aviation standards, including ADS-B.

Overview

ICAO sets the framework that regional bodies (RTCA in the US, EUROCAE in Europe) detail into the MOPS aircraft must meet, driving the worldwide rollout of ADS-B.²

Relevance to SDR

ICAO standards define the 1090 MHz signals an SDR receives when tracking aircraft.

Sources

1. International Civil Aviation Organization — Wikipedia, for ICAO’s role and standards. ↩

2. International Civil Aviation Organization — ICAO’s official site, for international civil-aviation standards including ADS-B. ↩

See also

• ADS-B
• Compact position reporting (CPR)
• International Telecommunication Union (ITU)

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