04:189:102 Lecture Notes - Lecture 3: Wireless Telegraphy, Lee De Forest, Samuel Morse

• School: Rutgers University
• Department: Communication and Informatio
• Course: 04:189:102
• Professor: Alptug

Document Summary

History of radio: early technology and the development of radio. Samuel morse developed a way to transmit electrical impulses within wires, which led to the discovery of the morse code, dots and dashes o. The first telegraph wire was set in between washington dc and baltimore 1844. in. 1866, the first telegraph line was built transatlantic between newfoundland and ireland o. Marconi patented wireless telegraphy in 1896 and in 1901 he relayed first wireless signal across atlantic ocean o. Lead to the leap from narrowcasting to broadcasting. 1912 act gave licenses to everyone applied which basically tells that use of radio is a right, not a privilege: wwi o. Private sector monopoly with government approval to dominate the industry. Standardizing radio parts and control frequency interference, 1919: the evolution of radio. Cheap - cost less than : vaudeville. The right to sell ads is called toll broadcasting. The first ad was ny real estate developer for . o o.