The frequency 400 MHz lies in which RF band?

The frequency 400 MHz lies in which RF band?

• A. High Frequency
• B. Very High Frequency
• C. Ultra High Frequency
• D. Super High Frequency

Answer: (C)

Frequencies are grouped into bands by approximate ranges. High Frequency covers about 3–30 MHz, Very High Frequency about 30–300 MHz, Ultra High Frequency about 300–3000 MHz, and Super High Frequency starts around 3 GHz. A frequency of 400 MHz sits between 300 and 3000 MHz, so it falls in the Ultra High Frequency band. The 400 MHz region is common for various wireless services, and its wavelength is about 0.75 meters, which helps explain its propagation characteristics (line-of-sight and building penetration) typical of UHF signals.

Frequencies are grouped into bands by approximate ranges. High Frequency covers about 3–30 MHz, Very High Frequency about 30–300 MHz, Ultra High Frequency about 300–3000 MHz, and Super High Frequency starts around 3 GHz. A frequency of 400 MHz sits between 300 and 3000 MHz, so it falls in the Ultra High Frequency band. The 400 MHz region is common for various wireless services, and its wavelength is about 0.75 meters, which helps explain its propagation characteristics (line-of-sight and building penetration) typical of UHF signals.