Cell Phone History

A detailed Summary of Cell Phone History


In the early 1920s the Detroit Police Department was the first government agency to use mobile radiotelephones in their patrol cars. At this time only one-way service was available, the pertinent information could be sent to the police vehicle but no response to the call was possible. Some five years later two-way service was introduced by a police department in New Jersey. This capability was then also made available for those private citizens that could afford it.

The basic concept of cellular phones began in 1947, when researchers looked at crude mobile (car) phones and realized that by using small cells (range of service area) with frequency reuse they could increase the traffic capacity of mobile phones extensively. Unfortunately at the time, the technology did not exist. In 1947, AT&T proposed that the FCC (F


Public cell phone testing began in 1977. The first trials began in Chicago with 2000 customers, and eventually other trials occurred in the Washington D.C. and Baltimore area. Another separate company in Japan began testing cellular phone service in 1979. A couple of years later, the FCC authorized commercial cell phone use in the United States. In 1983, "the first American commercial analog cellular service was made available in Chicago by Ameritech."

ederal Communications Commission) designate a large number of radio-spectrum frequencies so that widespread mobile telephone service would become feasible and AT&T would have an incentive to research the new technology. Many place blame on the FCC for the gap between the initial concept of cellular service and its availability to the public. Later in 1947, the FCC de

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Approximate Word count = 556
Approximate Pages = 2 (250 words per page double spaced)

Category: Technology

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