Note 1 to entry: In radiocommunication, the term “emission” should not be used in the more general sense of radio-frequency emission, i.e. the electromagnetic energy that emanates from a source in the form of radio waves. For example, that part of the energy from a local oscillator transferred to external space is a radio-frequency radiation and not an emission.

Note 2 to entry: The term “emission” is also used for the production of any waves or particles (see IEV 702-02-03), for a process in radiocommunication (see IEV 702-02-05), as a synonym for a programme (IEV 723-01-02) in broadcasting and for transmission in broadcasting, and for a release into the environment (see IEV 904-01-11).

Note 3 to entry: In French, the term “émission” is also used for the concept represented by the English term “sending” of a signal.