High Quality Content by WIKIPEDIA articles! XEQS-AM is a regional Mexican radio station that serves the state of Zacatecas. RAdio broadcasting is an audio (sound) broadcasting service, broadcast through the air as radio waves (a form of electromagnetic radiation) from a transmitter to a receiving antenna. STations can be linked in radio networks to broadcast common programming, either in syndication or simulcast or both. AUdio broadcasting also can be done via cable FM, local wire networks, satellite and the Internet.