The VLF band is used for a few radio navigation services, government time radio stations (broadcasting time signals to set radio clocks) and for secure military communication . Since VLF waves can penetrate at least 40 meters (131 ft) into saltwater, they are used for military communication with submarines.
Read moreWhat is low frequency and high frequency?
Low-frequency sounds are 500 Hz or lower while high-frequency waves are above 2000 Hz . Human ears can register sounds from about 20 Hz in frequency up to 20,000 Hz, depending of course, upon the hearer. People with hearing loss usually have trouble hearing sounds in the higher frequency range.6 Eki 2017
Read moreWhat is considered low frequency?
Anything below 200 Hz is considered low frequency and anything above 2,000 Hz is high frequency sound.
Read moreWhat does low frequency do to the body?
Some recent epidemiologic studies have suggested that the exposure to extremely low frequency (ELF) electromagnetic fields (EMF) affect human health, because of the incidence of certain types of cancer, depression, and miscarriage have been increased among individuals living or working in environments exposed to such …
Read moreWhat does a low frequency wave mean?
The frequency of a wave is inversely proportional to its wavelength. That means that waves with a high frequency have a short wavelength, while waves with a low frequency have a longer wavelength .
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