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Mobile Telephony

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DEFINITION: For a printable "Words-To-Go" version of this glossary, grouped by generation, click here. AMPSAdvanced mobile phone service is a standard for analog signal cellular telephone service in the United States and is also used in other countries. It is based on the initial electromagnetic radiation spectrum allocation for cellular service by the Federal Communications Commission (FCC) in 1970.  … 
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MOBILE TELEPHONY DEFINITION (continued): …  AMPS allocates frequency ranges within the 800 and 900 MHz spectrum to cellular telephone. D-AMPS is the 2G version of this technology. AMPS uses cellular digital packet data (CDPD) to transfer data using unused bandwidth, at speeds up to 19.2 Kbps. Major carrier support for AMPS is likely to end in the US in 2008.CDMACode-division multiple access is a form of multiplexing, which allows numerous signals to occupy a single transmission channel, optimizing the use of available bandwidth. CDMA employs analog-to-digital conversion (ADC) in combination with spread spectrum technology. The technology … 
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