What device is used for both transmitting and receiving radio waves?

The device that is used for both transmitting and receiving radio waves is the antenna. Antennas are crucial components in radio communication systems, functioning by converting electrical signals into radio waves for transmission and vice versa for reception. When used to transmit, the antenna radiates the electromagnetic energy produced by a transmitter into the surrounding space. Conversely, when used to receive, it captures the electromagnetic waves traveling through the air and converts them back into electrical signals that can be processed by a receiver.

Transmitters and receivers typically handle the amplification and processing of signals but rely on antennas to facilitate the actual radio wave propagation in both directions. Therefore, understanding the role of an antenna highlights its importance in effective communication systems, making it essential for anyone involved in radio technology or communication studies.