04:189:102 Lecture Notes - Lecture 2: Reginald Fessenden, Alessandro Volta, Audion

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

Document Summary

But it also highlighted : experimentation, regulation, the radio act of 1912 - licensing, but . Enter world war i: radio is weaponized , how, the united states wants control, by 1915 , at&t sold transmitters only, ge sold receivers only, american marconi - both transmitters & receivers, but there was also british marconi . David sarnoff: gm, rca (radio corporation of america, commercial broadcasting. 1920s - 1950s (improving the innovations: edwin howard armstrong - fm (frequency modulation, greater fidelity & clarity than am (amplitude modulation, lost rca"s support to tv, surpassed am radio by the 1980s. Radio goes commercial: kdka, pittsburgh, in 1920, earliest radio ads (1922/23) - toll broadcasting. Home of quacks, crazies and nomadic radio signals . Some key terms : network, affiliates - only signs contract, separate, e. g. Wnyc, npr affiliate: o & o (owned & operated, e. g.