Which frequency range corresponds to ultra high frequency (UHF)?

The ultra high frequency (UHF) range is defined as encompassing frequencies from 300 megahertz (MHz) to 3 gigahertz (GHz). This frequency band is commonly used for various forms of communication, including television broadcasts, mobile phones, satellite communications, and other forms of wireless communication. The UHF band is particularly advantageous for its ability to penetrate buildings and obstacles, as well as its capacity to support a variety of applications due to the wide array of available channels.

The other frequency ranges in the options do not correspond to UHF. For example, 3-30 MHz falls within the high frequency (HF) range, while 30-300 MHz is classified as very high frequency (VHF). The 3-30 kHz range is considered extremely low frequency (ELF), which is used primarily for communication with submarines and for specific navigation purposes. Understanding frequency classification is crucial for personnel involved in communications and electronic warfare, making it important to correctly identify the bounds of each category.