Edison patents ‘transmission of signals electrically’

In 1885, Thomas Edison was granted a patent for the “Transmission of Signals Electrically,” a significant advancement in the field of telecommunication. This patent covered a method for transmitting telegraphic signals over long distances using electrical conductors. Edison’s innovation included improvements to telegraph systems, such as the quadruplex telegraph, which allowed multiple signals to be sent simultaneously over a single wire. For amateur radio enthusiasts, Edison’s work is instrumental, as it contributed to the development of efficient communication systems. His advancements paved the way for modern telecommunication technologies, including radio, enabling reliable and expansive communication networks that are integral to amateur radio operations today.