high-frequency communication

High-frequency communication refers to the use of radio waves at very high frequencies, typically between 3 and 30 megahertz (MHz), for transmitting data over long distances. These signals can reflect off the layers of the Earth's atmosphere, allowing communication beyond the horizon without the need for satellites or cables. This technology is used in various applications, including aviation, emergency services, and military operations, as it can cover vast areas and penetrate different environments. High-frequency communication is valued for its reliability over long distances, especially in remote or underdeveloped regions.