Radio transmission is the process of sending information through the air using electromagnetic waves. These waves can carry various types of data, such as voice, music, or signals, over long distances. The information is converted into radio waves by a transmitter, which then travels through the atmosphere until it reaches a receiver that decodes the waves back into usable information. The technology behind radio transmission relies on antennas, which are devices that can send and receive these electromagnetic waves. Different frequencies are used for various applications, such as AM and FM radio broadcasting, television signals, and cellular communications.