Raadiosageduslike

Raadiosageduslike, often abbreviated as RF, refers to electromagnetic waves within a specific frequency range that can be used for radio transmission. This range typically falls between 3 kilohertz (kHz) and 300 gigahertz (GHz). The properties of radio waves, such as their ability to travel long distances and penetrate some solid objects, make them highly useful for communication technologies.

The behavior of RF waves varies significantly with frequency. Lower frequencies, like those used for AM radio, can travel around the Earth's curvature. Higher frequencies, such as those used for Wi-Fi and mobile phone communication, tend to travel in straighter lines and are more easily blocked by obstacles. Different frequency bands are allocated for various purposes by international regulatory bodies to prevent interference.

Applications of radio frequencies are widespread and integral to modern life. They are fundamental to broadcasting (AM and FM radio, television), wireless communication (mobile phones, Wi-Fi, Bluetooth), radar systems, satellite communication, and even medical imaging techniques like MRI. The development and understanding of radio frequencies have revolutionized global communication and information sharing.