Radio Technology - Processes - Radio Band

Radio Band

Main article: Radio frequency
Light Comparison
Name Wavelength Frequency (Hz) Photon Energy (eV)
Gamma ray less than 0.01 nm more than 10 EHZ 100 keV - 300+ GeV
X-Ray 0.01 to 10 nm 30 PHz - 30 EHZ 120 eV to 120 keV
Ultraviolet 10 nm - 400 nm 30 EHZ - 790 THz 3 eV to 124 eV
Visible 390 nm - 750 nm 790 THz - 405 THz 1.7 eV - 3.3 eV
Infrared 750 nm - 1 mm 405 THz - 300 GHz 1.24 meV - 1.7 eV
Microwave 1 mm - 1 meter 300 GHz - 300 MHz 1.24 meV - 1.24 µeV
Radio 1 mm - km 300 GHz - 3 Hz 1.24 meV - 12.4 feV

Radio frequencies occupy the range from a few hertz to 300 GHz, although commercially important uses of radio use only a small part of this spectrum. Other types of electromagnetic radiation, with frequencies above the RF range, are infrared, visible light, ultraviolet, X-rays and gamma rays. Since the energy of an individual photon of radio frequency is too low to remove an electron from an atom, radio waves are classified as non-ionizing radiation.

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