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45 Cards in this Set
- Front
- Back
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Number of radio stations today
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1,700
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Number of TV stations today
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13,000
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Who sent the first radio signals?
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Marconi
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Who amplified audio?
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De Forest
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Who invented FM radio?
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Armstrong
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What does FRC stand for?
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Federal Radio Commission
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Who was the first human voice on the radio?
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Fessenden
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What was the first "human voice" that was played on the radio?
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Violin music, read from the Bible, wished everyone a Merry Christmas
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Who was the unfair businessman that always took people to court?
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Sarnoff
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What were the first 2 networks?
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NBC and CBS
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Who invented the Music Box Memo?
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Sarnoff
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Who controlled radio when WW 1 began?
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military
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When/what/and where was the first radio commercial?
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1922;EAF;New York
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Who was granted the very first patent and what was it for?
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Marconi; wireless telegraphy system
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What was the first wireless signal (not human voice)?
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the letter "s" in Morse Code
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When did radio become profitable?
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1934
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Why radio networks?
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economic reasons, audience demands, and needs of advertisers
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Name two facts about the Radio Act of 1927
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public interest, no government censorship
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What two guys got together and developed the electronic scanning for computers?
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Zworykin and Farnsworth
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When and where was the first public demonstration of TV?
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1939' New York's World Fair
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Two facts about the Freeze of 1948
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froze the development of TV; Sixth Report and Order lifted the freeze
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What three things happened in the 1950s?
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dj's emerge, radio and the record industry are brought closer together, and radio is forced to depend on local advertising
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What three things happened between 1963-1975?
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cable starts to grow, more satellites, color TV
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What VERY IMPORTANT thing happened in 1963?
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networks go to 30-minute newscasts
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What 1 thing happened between 1975-1990?
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growth of cable, VCR, and the internet
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What 4 things are happening now?
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competition, clear channel, consolidation and convergence of station ownership, and new technology presents problems and opportunities
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When does cable TV start to grow and what kinds of areas was cable designed for?
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1963; rural
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When did FM start competing with AM and when did it finally become dominant?
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70's;80's
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What percent of the US have cable TV? and what percent have satelite TV?
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60%, 27%
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What year was the VCR invented? and what year did it start getting used in homes?
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1956; 1976
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What is "time shifting"?
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allows someone to view a program whenever they want
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What are 2 problems with the internet?
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internet radio and copyright issues; making ads obtrusive without "turning off" the user
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What does AM stand for?
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amplitude modulation
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What does FM stand for?
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frequency modulation
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What are AM's 3 strengths?
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sky waves, ground conductivity, and efficient use of wattage
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What are AM's 3 weaknesses?
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sky waves (more of a strength), static, and narrow channels
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What are FM's 3 strengths?
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wide channels with high fidelity, no static, and stable coverage area
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What are FM's 3 weaknesses?
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no sky waves, line of sight, and higher frequencies take more wattage
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What is the maximum power for AM?
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50,000
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What is the maximum power for FM?
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100,000
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Name a strength of UHF
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more channels
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Name a weakness of UHF
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signal problems
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Name a strength of VHF
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stronger signals
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Name a weakness of VHF
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only 12 channels
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What is the deadline for HDTV?
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2009
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