This display requires that JavaScripts be enabled in your browser. For instructions, view
Close This Window
View entire text

Related Data Sets
View all records related to this instrument

VLF receivers are simple, yet uncommon. Consisting only of an
antenna and an audio amplifier, they are sensitive to radio
waves with frequencies between a few hundred Hertz and 10 kHz
. For comparison, AM broadcast band radios --like the ones in
most automobiles-- span the much higher frequency range 540 kHz
to 1.6 MHz.

Even if there is no lighting in your area, you can still hear
View entire text

Close This Window