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very low frequency
Definição1
The frequency band between 3 and 30 kHz.
Fonte1
FEDERAL AVIATION ADMINISTRATION. Pilot/controller glossary (P/CG). 2014. Disponível em: https://www.faa.gov/air_traffic/publications/atpubs/pcg/index.htm. Acesso em: 10 jun. 2014.
Definição2
The range of radio frequencies between three kilohertz (3,000 cycles per second) and 30 kilohertz (30,000 cycles per second). VLF radio waves are used for operations that require the signal to travel great distances.
Fonte2
CRANE, Dale (ed.). Dictionary of aeronautical terms. 4th ed. Newcastle: ASA, 2006.
Subárea
Aeronautical Telecommunications
Related Term
frequency
Français
très basse fréquence