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radio wave
Definição1
An electromagnetic wave (EM wave) with frequency characteristics useful for radio transmission.
Fonte1
CRANE, Dale (ed.). Dictionary of aeronautical terms. 2nd ed. Renton: ASA, 1991.
Fonte2
INTERNATIONAL CIVIL AVIATION ORGANIZATION. Handbook on radio frequency spectrum requirements for civil aviation. 1st ed. Montreal, 2014. (Doc. 9718)
Contexto
Thus, radiation could either be the radio wave energy coming from a local oscillator in a receiver, or an instrument or machine used in medical or industrial purposes, while emission is exclusively the radio energy from a transmitting antenna.
Subárea1
Aeronautical Telecommunications
Português
onda de rádio
Imagem

Diagram of the electric fields (E) and magnetic fields (H) of radio waves emitted by a monopole radio transmitting antenna (small dark vertical line in the center). The E and H fields are perpendicular as implied by the phase diagram in the lower right.

Diagram of the electric fields (E) and magnetic fields (H) of radio waves emitted by a monopole radio transmitting antenna (small dark vertical line in the center). The E and H fields are perpendicular as implied by the phase diagram in the lower right.

Fonte: http://en.wikipedia.org/w/index.php?title=File:Radio_waves.svg&page=1