How does Wi-Fi transmit data through the air?

Wi-Fi transmits data using radio waves, typically at frequencies of 2.4 GHz or 5 GHz. A wireless router converts digital data into radio signals and broadcasts them through an antenna. Your device's wireless adapter receives these signals and converts them back into digital data. The process uses a technique called OFDM (Orthogonal Frequency Division Multiplexing), which splits data across multiple smaller frequency channels simultaneously, improving speed and reducing interference. Data is encoded into the radio waves by varying their properties, such as amplitude or phase. The router and device constantly communicate back and forth, with the router acting as a hub managing traffic between connected devices and the broader internet through your modem.