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Contents
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(Top)
1
Alternative definitions
2
Propagation
Toggle Propagation subsection
2.1
Schumann resonances
3
Submarine communications
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3.1
Explanation
3.2
Difficulties of ELF communication
4
Other uses
5
Natural sources
6
Exposure
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6.1
Leukemia allegations
6.2
Ecological impact
6.3
Conspiracy theories
7
Patents
8
See also
9
References
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9.1
Notes
9.2
General information
10
External links
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Extremely low frequency
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From Wikipedia, the free encyclopedia
3-30 Hz range of the electromagnetic spectrum
Extremely low frequency
Frequency range
3 to 30
Hz
Wavelength range
100,000 to 10,000
km
, respectively
Radio bands
ITU
1 (ELF)
2 (SLF)
3 (ULF)
4 (VLF)
5 (LF)
6 (MF)
7 (HF)
8 (VHF)
9 (UHF)
10 (SHF)
11 (EHF)
12 (THF)
EU / NATO / US ECM
A
B
