Radio telegraph is a term used for communication systems that use radio waves to transmit signals over long distances. Synonyms for radio telegraph may include wireless telegraphy, radiotelegraphy, wireless telegraph communication, or simply radio communication. These terms are often used interchangeably with radio telegraph and refer to the same technology. The use of telegraphy in radio communication traces back to the 19th century when Morse code was used to send messages wirelessly. Today, radio communication systems have evolved to include sophisticated technologies like GPS and satellite communication. However, despite the advancements, the term radio telegraph remains relevant in modern communication.