What frequency range is identified as VLF?

What frequency range is identified as VLF?

• A. 3-30 KHz
• B. 30-300 KHz
• C. 300-3000 KHz
• D. 10 kHz-100 GHz

Answer: (A)

The frequency range identified as Very Low Frequency (VLF) is indeed 3-30 KHz. This classification falls within the larger spectrum of electromagnetic frequencies, specifically pertaining to radio communications. VLF is particularly significant for long-distance communication, as it can penetrate deep into water and earth, making it useful for submarine communication and navigation systems. This range is utilized in various applications, including time signals, navigation signals for aviation, and maritime communications. The characteristics of VLF signals, such as their high wavelength and low frequency, allow them to travel long distances under specific conditions, which is especially advantageous in scenarios where other frequency bands may not perform as effectively. Thus, the identification of VLF as 3 to 30 KHz aligns with standards set by organizations that categorize radio frequencies based on their propagation characteristics and applications.

The frequency range identified as Very Low Frequency (VLF) is indeed 3-30 KHz. This classification falls within the larger spectrum of electromagnetic frequencies, specifically pertaining to radio communications. VLF is particularly significant for long-distance communication, as it can penetrate deep into water and earth, making it useful for submarine communication and navigation systems.

This range is utilized in various applications, including time signals, navigation signals for aviation, and maritime communications. The characteristics of VLF signals, such as their high wavelength and low frequency, allow them to travel long distances under specific conditions, which is especially advantageous in scenarios where other frequency bands may not perform as effectively.

Thus, the identification of VLF as 3 to 30 KHz aligns with standards set by organizations that categorize radio frequencies based on their propagation characteristics and applications.