Radio frequency (RF) refers to the range of electromagnetic waves that can transmit data wirelessly. It typically spans from 3 kHz to 300 GHz and is used in various applications, including television, radio broadcasting, and cellular communication. RF waves carry information by modulating their amplitude or frequency, allowing devices to communicate over distances without physical connections. In everyday life, RF technology is found in devices like Wi-Fi routers, Bluetooth devices, and radios. These devices utilize RF signals to send and receive information, enabling activities such as streaming music, making phone calls, and connecting to the internet. Understanding RF is essential for advancements in wireless communication.