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VLF

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**VLF**

What is VLF?

Very Low Frequency (VLF) refers to radio frequencies in the range of 3 kHz to 30 kHz. Because of their long wavelength, VLF waves can penetrate water and propagate long distances, making them useful for submarine communication. They are also used for time signals and geophysical research. VLF signals are subject to atmospheric noise and require large antennas for efficient transmission and reception.

What other technologies are related to VLF?

Which organizations are mentioning VLF?

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