Broadcasting in America: A Survey of Electronic MediaHoughton Mifflin, 1987 - 604 páginas |
Dentro del libro
Resultados 1-3 de 83
Página 141
... direct waves , ground waves , and sky waves . Direct Waves Line - of - sight waves occur in the VHF frequencies and above . Called di- rect waves , they follow a straight path from transmitting antenna to receiver antenna , reaching ...
... direct waves , ground waves , and sky waves . Direct Waves Line - of - sight waves occur in the VHF frequencies and above . Called di- rect waves , they follow a straight path from transmitting antenna to receiver antenna , reaching ...
Página 142
... Direct waves travel like light rays , straight out from small radiating elements atop the antenna structure . The line - of - sight angle to the horizon limits their radius of coverage . TV antennas have directional characteristics to ...
... Direct waves travel like light rays , straight out from small radiating elements atop the antenna structure . The line - of - sight angle to the horizon limits their radius of coverage . TV antennas have directional characteristics to ...
Página 427
... direct evidence that televised violence can cause violent behavior on the part of at least some viewers . But as with so much else about people , the answer is not that sim- ple . Exhaustive research from many quarters has demonstrated ...
... direct evidence that televised violence can cause violent behavior on the part of at least some viewers . But as with so much else about people , the answer is not that sim- ple . Exhaustive research from many quarters has demonstrated ...
Términos y frases comunes
A. C. Nielsen advertising affiliates agencies Amendment American antenna appeal applications Arbitron AT&T audience began broad broadcast and cable broadcast stations cable networks cable systems cable television carrier wave channels cial commercial commission communications act Congress cost court coverage decision effect electronic media entertainment example Exhibit fairness doctrine FCC's federal film formats frequency grams groups households impact industry issues license limited LPTV major Mass Media ment million Nielsen noncommercial operation ownership pay cable percent political prime-time produced programs public broadcasting radio and television radio stations ratings receivers recording regulation relay renewal reports role rules sample satellite schedule shows signals sion SMATV Source spectrum standards subscribers syndicated tele Telecommunications telephone teletext television networks television stations tion tional TVRO viewers waves wireless