? = Gamma rays - HX = Hard X-rays - SX = Soft X-Rays - EUV = Extreme ultraviolet - NUV = Near ultraviolet - Visible light - NIR = Near infrared - MIR = Moderate infrared - FIR = Far infrared - - Radio waves - EHF = Extremely high frequency (Microwaves) - SHF = Super high frequency (Microwaves) - UHF = Ultra high frequency - VHF = Very high frequency - HF = High frequency - MF = Medium frequency - LF = Low frequency - VLF = Very low frequency - VF = Voice frequency - ELF = Extremely low frequency

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