Patent ID: 8135399

Claim:
A method for the determining, on board an aircraft, of an identifier of a communications centre with which an aircraft crew wishes to enter into contact, comprising the following operations: the writing, by the crew, of a radio-communications frequency to a display unit of the cockpit of the aircraft, the determining of surroundings of the aircraft, the determining of frequencies of the communications centers possible in these surroundings, by sorting out those frequencies that are possible from among all the frequencies of the surroundings of the aircraft in order to determine communications centers liable to communicate on these frequencies with the aircraft, after the drawing up of a list of communications centers in the aircraft surroundings with their respective frequencies, then the comparing of the frequencies of these possible communications centers with the frequency displayed on the display unit of the cockpit, and when the frequency of a communications centre is identical to the displayed frequency, the displaying on the aircraft display unit of the identifier of said communications centre having a frequency identical to the displayed frequency.