Full formTechnology
VLFstands forVery Low Frequency
Full Form of VLF
What is VLF?
Very Low Frequency, commonly abbreviated as VLF, refers to the radio frequency band that ranges from 3 kHz to 30 kHz on the electromagnetic spectrum. These extremely long waves can travel thousands of kilometres, penetrate seawater to a significant depth, and follow the curvature of the Earth, making them ideal for long-distance communication and submarine signalling. In India, VLF technology is used by the Indian Navy for communicating with submerged submarines, and a major VLF transmitting station operates at INS Kattabomman in Tirunelveli, Tamil Nadu. The Defence Research and Development Organisation also studies VLF propagation for strategic applications. Scientists in India use VLF signals to study the lower ionosphere, lightning activity, and atmospheric disturbances. Amateur radio enthusiasts in the country also experiment with VLF bands. For students, VLF-related questions frequently appear in examinations for Indian Navy, DRDO, ISRO scientific positions, and competitive exams covering physics, electronics, and communication engineering fundamentals.
VLF का फुल फॉर्म
अति निम्न आवृत्ति
Example
The Indian Navy relies on the VLF transmitter at INS Kattabomman to send secure messages to its strategic submarines deployed across the Indian Ocean.
VLF — frequently asked questions
What is the full form of VLF?
VLF stands for Very Low Frequency, which refers to radio waves operating between 3 kHz and 30 kHz on the electromagnetic spectrum.
Where is the VLF transmitter located in India?
India's primary VLF transmitter is operated by the Indian Navy at INS Kattabomman near Tirunelveli in Tamil Nadu for submarine communications.
Why is VLF used for submarine communication?
VLF waves can penetrate seawater to a depth of around 20 metres, allowing submarines to receive signals while remaining submerged.