Radio Teletype is a communication system that combines radio transmission with teletypewriter technology. It allows for the sending and receiving of typed messages over radio waves, making it useful for long-distance communication, especially in areas without telephone lines. This system was widely used by military and maritime services, as well as news agencies, to transmit information quickly and efficiently. By converting text into electrical signals, Radio Teletype enabled real-time communication, which was crucial during emergencies and for coordinating operations in remote locations.