
Early radio technology
Early radio technology involved transmitting audio signals as electromagnetic waves through the air, allowing wireless communication over distances. Pioneered by scientists like Guglielmo Marconi, it used simple antennas to send and receive signals, initially for point-to-point communication. Early radios converted these waves back into sound, enabling live music, news, and voice transmission without wires. The technology relied on basic components like vacuum tubes and spark-gap transmitters, gradually improving in clarity and range. This innovation laid the foundation for modern wireless communication, transforming how people share information globally.