Broadcasting system digitizes audio input signals before RF modulating and transmitting over airwaves to one or more remote receiving stations. Receiving station recovers the digitized signal by demodulating and exponentially expanding the received RF signal. Recovered digital signal is subsequently frequency modulated and sent, via an electrically conductive cable, to an FM radio, over which the original audio input signals are faithfully reproduced. A time switch in series with the RF receiver and the FM modulator is capable of temporarily disabling modulated transmissions to radio through the electrically conductive cable. Relay stations, (either land-based or satellite), allow for transmission beyond the range (i.e. "line-of-sight") of common FM radio transmissions.