Monday, October 02, 2006

 

natural radio

“Natural Radio”, a term coined in the late 1980’s by California amateur listener and
researcher Michael Mideke, describes naturally occurring electromagnetic (radio) signals emanating from lightning storms, aurora (The Northern and Southern Lights), and Earth’s magnetic-field (the magnetosphere). The majority of Earth’s natural radio emissions occur in the extremely-low-frequency and very-low-frequency (ELF/VLF) radio spectrum specifically, at AUDIO frequencies between approximately 100 to 10,000 cycles-per second (0.110 kHz). Unlike sound waves which are vibrations of air molecules that our ears are sensitive to, natural radio waves are vibrations of electric and magnetic energy (radio waves) which though occurring at the same frequencies as sound cannot be listened to without a fairly simple radio receiver to convert the natural radio signals directly into sound.

http://irdial.hyperreal.org/www/vlf_booklet.pdf

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