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Very Low Frequency

(VLF)
(electromagnetic radiation, frequency 3kHz to 30kHz)

Very Low Frequency (VLF) radiation is Electromagnetic Radiation defined by the ITU to be within the Frequency range of 3kHz to 30kHz. It is considered within the lower-frequency end of the Radio spectrum, or beyond (Subradio). It is adjacent to Ultra Low Frequency.


(EMR,spectrum,band)
http://en.wikipedia.org/wiki/Vlf
WaveLFreqPhoton
Energy
  
10km30kHz124peVbeginVery Low Frequency
100km3kHz12peVendVery Low Frequency

Referenced by:
Subradio
Ultra Low Frequency (ULF)

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