What does VLF stand for in telecommunications?

VLF stands for Very Low Frequency in telecommunications. This term refers to radio frequencies that range from 3 kHz to 30 kHz. These frequencies are utilized for various applications, including long-range communications and navigation systems. VLF signals can penetrate deep into water, making them particularly suitable for submarine communication.

The term indicates a specific radio frequency band that is lower than most other communication bands, which can impact how signals are transmitted and received. Understanding frequency ranges is essential for telecommunications professionals, as different applications require different frequency bands to function effectively. Other options, while they sound plausible, do not accurately reflect the established terminology used in the field.