CELLULAR SYSTEM EXPANDS NUMBER OF MOBILE-PHONE CHANNELS

Anyone trying to make even a local call from a phone in an automobile soon discovers that it is very difficult to get a clear channel. Advanced Mobile Phone Service which uses decentralized, low-power transmitters and antennas to link calls made to or from cars to the regular phone lines. The same frequencies may be used by different transmitters, provided they are at a sufficient distance from one another. Through frequency reuse, a cellular mobile-telephone system in one coverage area can handle many more calls simultaneously than the number of allocated frequency channels. A hexagonal cell is the most efficient, requiring the fewest transmitter sites. LSI and stored-program control make the system practical.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08634989
• Corporate Authors:

  McGraw-Hill, Incorporated

  330 West 42nd Street
  New York, NY  United States  10036
• Authors:
  • Hindin, H J
• Publication Date: 1979-5

Media Info

• Pagination: p. 158-164
• Serial:
  • Electronics
  • Volume: 52
  • Issue Number: 11
  • Publisher: VNU BUSINESS PUBLICATIONS
  • ISSN: 0863-4989

Subject/Index Terms

• TRT Terms: Automobiles; Frequency (Electromagnetism); Integrated circuits; Mobile radio; Mobile telephones; Radio telephone; Radio transmitters; Telephone; Transmission
• Old TRIS Terms: Channels; Large scale integration; Radio systems (Mobile); Radio transmission
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 00310352
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Jun 9 1980 12:00AM