 several sets of receivers or transmitters installed in one building but functioning independently, and several antennas installed on a field next to the building).This definition of a radio station is more often referred to as a transmitter site, transmitter station, transmission facility or transmitting station.An example of this definition is Bethany Relay Station of the Voice of America which had seven broadcast transmitters and could broadcast up to seven independent programs (even produced by different broadcasters) simultaneously, as well as several communications transmitters and receivers.