Aircraft travel from one place to another at a height of 11km; some of them, even at the speed of sound, therefore, it is necessary to have a communication channel between them and their surroundings. This medium is the radio.
It was invented by an electronics engineer called Guillermo Marconi in 1901, two years previous to the Wright brothers’ first ever flight. Radio is indispensable to aviation.
But how does it work? How is the radio used in aeroplanes? Here’s what we tell you.