In amplitude-modulation (AM) radio, to oversimplify somewhat, a carrier wave is made to transmit an A-note by being turned on and off (or up and down in strength) 440 times a second. This is, ...

This article was originally featured on The Conversation. A lament about the demise of AM radio has been rising in the halls of Congress. Several automakers, most notably Tesla and Ford, have decided ...

Carmakers say electromagnetic interference causes static and noise on AM transmissions, annoying customers. Broadcasters say they could lose a connection to their core listeners, who rely on the radio ...