vlf

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vlf

A radio technician adjusts the VLF antenna at a research station.

Definition

Noun: * Very Low Frequency: A radio frequency band in the range of 3 to 30 kilohertz, characterized by long wavelengths and the ability to propagate over long distances, especially underwater and underground.

Usage
  • Very Low Frequency is a technical term used primarily in telecommunications, radio science, and engineering. It is often written in its abbreviated form, VLF.
  • It functions as a noun, typically used as a modifier for other nouns (e.g., VLF band, VLF signal, VLF transmission).
Examples
  • Submarine communication often relies on VLF signals because they can penetrate seawater.
  • Scientists study atmospheric phenomena by monitoring natural VLF emissions like whistlers.
  • The transmitter is designed to operate in the VLF band.
Advanced Usage
  • VLF can be used attributively to describe technologies and phenomena: , , .
  • In scientific contexts, it is often contrasted with other frequency bands like ELF (Extremely Low Frequency) and LF (Low Frequency).
Variants and Related Words
  • ELF (Extremely Low Frequency): The adjacent, lower frequency band (below 3 kHz).
  • LF (Low Frequency): The adjacent, higher frequency band (30 to 300 kHz).
  • Radio Wave: The broader category of electromagnetic radiation to which VLF belongs.
Synonyms
  • Very Low Frequency (full form)
  • Myriametric wave (an older term referring to its ten-thousand-meter wavelength scale)
Notes
  • VLF is an initialism. It is pronounced by saying each letter: "Vee-El-Eff."
  • This term is highly specialized and is not commonly used in everyday conversation outside of specific technical fields.
vlf

A radio technician adjusts the VLF antenna at a research station.

Noun
  1. 3 to 30 kilohertz

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