JMU SMAD 101 Exam 3 Questions and Correct Answers

JMU SMAD 101 Exam 3 Questions and Correct Answers Heinrich Hertz - Correct Answer Detected and send radio waves Nikola Tesla - Correct Answer Tesla coil, father of radio Guglielmo Marconi - Correct Answer • made wireless communication device, sent morse from transmitter to receiver • started wireless telegraph company Reginald Fessenden - Correct Answer • General Electric helped him build high-speed continuous-wave generator • broadcast human voice and music, 'holy night' Lee De Forest - Correct Answer • created vacuum tube, originally called audion, made it easier to receive radio signals • triode tube amplified low signals WWI Patent Suspension - Correct Answer • US Navy assumed responsibility for all relevant patents • caused GE (alternator), Westinghouse (diode), and AT&T (triode amplifiers) to form RCA RCA (Radio Corporation of America) (in radio) - Correct Answer • formed after WWI, acquired assets of Marconi company • stock held by AT&T, GE, Westinghouse • David Sarnoff is head • started radio station after KDKA along with AT&T and GE • NBC, the first network, is under this corporation David Sarnoff - Correct Answer • got into radio by getting Marconi's wife flowers for him • created Columbia Records • head of RCA • founded