👉 Radiotelegraphy is a communication system used to transmit information over long distances using radio waves. It was introduced in the 1930s by the British physicist and engineer John Gaddes, who developed it for use with Morse code. Radiotelegraphy uses radio waves to transmit data from one location to another, allowing for real-time communication between different locations or across large distances. In its simplest form, a radiotelegraph would consist of a transmitter (such as