(Askeri) ELEKTROMANYETİK SPEKTRUM (NATO): Elektromanyetik radyasyonun sıfırdan sonsuza kadar tüm aralıklardaki frekansları. Aralıklar 26 adet alfabetik olarak harflenmiş banttan oluşur. Bak. "electronic warfare"
Определение electromagnetic spectrum в Английский Язык Английский Язык словарь
The entire range of wavelengths of all known electromagnetic radiations extending from gamma rays through visible light, infrared, and radio waves, to X-rays
n. The entire range of radiation extending in frequency from approximately 10 centimeter to infinity and including, in order of decreasing frequency, cosmic-ray photons, gamma rays, x-rays, ultraviolet radiation, visible light, infrared radiation, microwaves, and radio waves. Total range of frequencies or wavelengths of electromagnetic radiation. The spectrum ranges from waves of long wavelength (low frequency) to those of short wavelength (high frequency); it comprises, in order of increasing frequency (or decreasing wavelength): very-low-frequency to ultrahigh-frequency radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X rays, and gamma rays. In a vacuum, all waves of the electromagnetic spectrum travel at the same speed: 299,792,458 m/sec (186,282 mi/sec)