Aeronautical Telecommunication Services

Aeronautical Telecommunications Services is a technically complicated area of expertise responsible for both ground-to-ground and air-to- ground communications.  The Service is responsible for the installation, commissioning, flight checking (where appropriate) and on-going maintenance of all radios, navigation aids and other telecommunication equipment used by and in support of the air traffic and aeronautical information services as well as some elements of the meteorological function.

ICAO Responsibilities