Astrophysics (Index)About

very low frequency

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

Very low frequency (VLF) radiation is defined by the ITU to be electromagnetic radiation within the frequency range of 3-30 kHz. It is the next lower frequency-range below the ITU classification Low Frequency (LF, which is a bit lower than the frequencies commonly viewed in what is termed low frequency radio astronomy) and with ultra low frequency (ULF) coming next. VLF is generally classified as a lower-frequency portion of the radio spectrum, but definitions of the frequency-range of radio are not consistent and some would classify VLF as subradio.


(EMR,spectrum,band,radio,subradio)
Further reading:
https://en.wikipedia.org/wiki/Very_low_frequency
WaveLFreqPhoton
Energy
  
10km30kHz124peVbeginvery low frequency
100km3kHz12peVendvery low frequency

Referenced by pages:
subradio
ultra low frequency (ULF)

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