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The Evolution of Untethered Communications (1997) / Chapter Skim
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C GLOSSARY
Pages 182-189

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 182...
... ACN (airborne communications node) is an unmanned aerial vehicle designed and equipped to provide hierarchical communications services and crosslinking over a broad theater of operations.
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From page 183...
... CONDOR is a National Security Agency program designed to develop and demonstrate secure voice and secure net broadcast services, using STU III-compatible units, over the commercial cellular infrastructure. COTS (commercial off-the-shelf)
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From page 184...
... is a system in which GEO satellites broadcast a signal with sufficient power to enable direct reception in a home, office, or vehicle with an inexpensive receiver. DEE (decision feedback equalizer)
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From page 185...
... GEO (geosynchronous orbit) refers to an equatorial satellite orbit approximately 36,000 kilometers from the Earth in which the satellite remains stationary over one position on the Earth's surface.
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From page 186...
... refers to the unlicensed frequency bands available for use by any wireless device that conforms to rules established by the FCC. ITU is the International Telecommunications Union.
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From page 187...
... MISSI (Multilevel Information Systems Security Initiative) is a National Security Agency initiative designed to provide a framework for the development of interoperable, complementary security products.
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From page 188...
... SINCGARS (single-channel ground and airborne radio system) is a military radio that hops transmission frequencies within the very-highfrequency band, a capability that helps prevent jamming.
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From page 189...
... was formed by several companies in 1992 to obtain frequency bands and set protocol standards for personal communications data services. WEAN is a wireless local area network.
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Key Terms

  • satellite communications
  • communications channel
  • radio spectrum
  • multiple access
  • military radio

  • wireless telephone
  • digital wireless
  • international telecommunications
  • frequency bands
  • cellular telephone

  • division multiple
  • communications services
  • security agency
  • combat net
  • personal communications

  • unmanned aerial
  • american standard
  • communications channels
  • mobile communications
  • aerial vehicle

  • earth station
  • analog cellular
  • mobile subscriber
  • intersymbol interference
  • satellite orbit

  • cellular radio
  • radio designed
  • earth orbit
  • integrated circuit
  • precompetitive research


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