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Communications Satellites: Countdown for INTELSAT VI.

L Pollack, H Weiss

    Science (New York, N.Y.)
    |February 10, 1984
    PubMed
    Summary
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    Satellite technology has revolutionized global communication, increasing international telephone circuits 400-fold and reducing call costs by 12,000%. Future satellites promise even greater capacity and efficiency.

    Area of Science:

    • Satellite Communications
    • Telecommunications Engineering
    • Space Technology

    Background:

    • The Communications Satellite (COMSAT) has facilitated a dramatic expansion in global connectivity since its inception.
    • International telephone circuits have surged by 400 times, with costs plummeting by 12,000% over two decades.
    • Current global communication relies on 14 satellites in earth-synchronous orbits, linking 109 nations.

    Purpose of the Study:

    • To highlight the technological advancements in satellite communications.
    • To project future trends and capacity needs in satellite-based telecommunications.
    • To detail the evolution of satellite technology and its impact on global communication.

    Main Methods:

    • Analysis of growth in international telephone circuits and cost reduction.

    Related Experiment Videos

  • Review of technological improvements in satellite components and capabilities.
  • Examination of satellite orbital mechanics and network configuration.

    • Main Results:

    • Satellite transmission bandwidth has increased from 50 to over 3000 megahertz.
    • Satellite operational lifespan has extended from 1.5 to 10 years due to technological improvements.
    • The sixth generation of INTELSAT satellites will offer 40,000+ channels and two TV programs per unit.

    Conclusions:

    • Continued advancements in satellite technology are crucial for meeting escalating global traffic demands.
    • Future satellite generations will incorporate higher frequencies (20/30 GHz), onboard processing, and advanced modulation for increased capacity.
    • Satellite communications are projected to become significantly more efficient and capable in the coming decades.