Radio communication system for data transmission and reception

There is disclosed a radio communication system such as a radio paging system or the like, for data transmission and reception, which is comprised of a transmission device and a reception device. The transmission device comprises a modulation circuit (12), a radio signal transmitter (15a) for transmitting message signals, through air, after converting them into radio signals, and an optical signal radiator (13a) for radiating the message signals, through air, after converting them into optical signals. The reception device has a contrivance capable of receiving both the radio and optical signals, of combining these signals in order to reproduce the message signals, and of demodulating the message signals from the combined signals.