AMPS

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AMPS

(Advanced Mobile Phone Service) The primary analog cellular mobile phone system deployed in North and South America and more than 35 other countries. It used FDMA transmission in the 800 Mhz band. The first AMPS system in the U.S. was deployed in Chicago in 1983. See N-AMPS, NMT and TACS.
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Back in Ye Olde Days (1983 to be precise) Bell Labs introduced the "Advanced Mobile Phone System" for purchase in the Americas.
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