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cellular
CDMA
cell
GSM
MSA/RSA
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Refers to communications systems, especially the Advance Mobile Phone Service (AMPS), that divide a geographic region into sections, called cells. The purpose of this division is to make the most use out of a limited number of transmission frequencies. Each connection, or conversation, requires its own dedicated frequency, and the total number of available frequencies is about 1,000. To support more than 1,000 simultaneous conversations, cellular systems allocate a set number of frequencies for each cell. Two cells can use the same frequency for different conversations so long as the cells are not adjacent to each other.

For digital communications, several competing cellular systems exist, including GSM and CDMA.



For internet.com pages about cellular, . Also, check out the following links!


More Information

  How do cell phones work?
Describes the basics of cell phones and how they work, an overview of the cell phone system, and what happens when a cell phone places a call. Also includes links to cellular related sites.

  Wireless communication consumer information
Contains links to wireless phone purchasing and service information, FAQs, a wireless technology overview, information on product certification, and manufacturer listings for accessories. Updated on Jun 24, 1998

  Yahoo!'s cellular modem reviews page
Yahoo!'s directory of cellular modem reviews. Updated on Aug 4, 1998

  Yahoo!'s cellular telephones page
Yahoo!'s directory of cellular telephones. Updated on May 9, 1998

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