Analog voice over Very High Frequency (VHF) or High Frequency (HF) radio waves is the foundation of conventional aviation communications. Data-based communications were first used in the middle of the 1980s. Controlling the flow of air traffic throughout the world can safely become more automated as Aircraft Communication Systems enters the computer era and as new requirements develop and the range of communications technology increases. Today's aeroplanes are outfitted with communication systems that transmit data through satellite as well as while they are in the air; mobile communication and, in certain circumstances, broadband networks can receive or broadcast strategic information about the status of an aircraft as well as maintenance trends.
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