What is the frequency range of VHF?

What is the frequency range of VHF?

• A. 3 to 30 MHz
• B. 30 to 300 MHz
• C. 300 to 3000 MHz
• D. 3000 to 30000 MHz

Answer: (B)

VHF, or Very High Frequency, spans from 30 to 300 MHz. This places it above the HF band (which is lower, around 3–30 MHz) and below the UHF band (higher, around 300–3000 MHz). At these frequencies signals travel mainly by line of sight, which is ideal for ship-to-ship and shore-to-ship communications because the horizon limits the range but keeps signals clear over practical distances. The wavelengths range from about 10 meters at the low end to 1 meter at the high end, which aligns with the common antenna sizes used on vessels. In real-world use, maritime VHF radios operate in the nearby marine band around 156–162 MHz, illustrating how this frequency range is applied.

VHF, or Very High Frequency, spans from 30 to 300 MHz. This places it above the HF band (which is lower, around 3–30 MHz) and below the UHF band (higher, around 300–3000 MHz). At these frequencies signals travel mainly by line of sight, which is ideal for ship-to-ship and shore-to-ship communications because the horizon limits the range but keeps signals clear over practical distances. The wavelengths range from about 10 meters at the low end to 1 meter at the high end, which aligns with the common antenna sizes used on vessels. In real-world use, maritime VHF radios operate in the nearby marine band around 156–162 MHz, illustrating how this frequency range is applied.