carrying full-time television across the country for the three networks then in existence. ... Also, the opportunity was created for anyone, particularly in a remote area lacking over- the-air or cable service, with the ... In the last two years, with the launch of DirecTV by Hughes Communications, each satellite carrying 75 digital television channels, the United States stepped ... Digital techniques ( e.g., pulse code modulation [PCM] coding, phase shift keying [PSK] modulation, time divisionanbsp;...
|Title||:||Technology for the United States Navy and Marine Corps, 2000-2035 : Becoming a 21st-century Force : V.3, Information in Warfare|
|Author||:||Committee on Technology for Future Naval Forces, Naval Studies Board, Mathematics Commission on Physical Sciences (and Applications), National Research Council|
|Publisher||:||National Academies - 1997|