The abbreviation CVLF stands for Consolidated Very Low Frequency in the military field, especially in the US. You can find more abbreviations starting with CV here. Also take a look at our list with military acronyms.
The Frequency for the Depth
Consolidated Very Low Frequency is the bundled very low frequency communication: radio signals in the range of a few kilohertz, which penetrate water and reach submarines. CVLF stands for the infrastructure that keeps the contact with the boats under water – globally.
Why Submarines Need VLF
Radio waves do not penetrate sea water – with one exception: very long waves. Submarines therefore trail long antenna buoys and receive the VLF broadcast: short messages, orders, warnings. The stations are huge – kilometers-long antennas – but they reach every ocean.
CVLF appears in this meaning mainly in communication documentation. The abbreviation belongs to the special vocabulary of submarine communication – where reception means survival.
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