October 13, 1983
The first cellular network was launched in Chicago by Ameritech, marking a significant milestone in telecommunications.
Chicago, United States | Ameritech
On October 13, 1983, a pivotal moment in telecommunications history occurred with the launch of the first cellular network in Chicago by Ameritech. This event marked the beginning of a new era in mobile communication, setting the stage for the global proliferation of cellular technology.
Before the launch of cellular networks, mobile communication was limited to car phones and other rudimentary mobile radio systems, which were cumbersome and had limited capacity. The development of cellular technology aimed to overcome these limitations by dividing service areas into smaller regions called “cells,” each served by its own antenna. This innovation allowed for the efficient reuse of frequencies and significantly increased the number of users that could be supported.
1970s Research and Development: The concept of cellular technology was developed in the 1970s, with significant contributions from Bell Labs. The Federal Communications Commission (FCC) allocated frequencies for cellular services in 1974, paving the way for commercial development.
FCC Approval: In 1982, the FCC approved the allocation of frequencies specifically for cellular services, which was a crucial step in the commercialization of mobile phone technology.
Ameritech’s Role: Ameritech, one of the original Regional Bell Operating Companies, was at the forefront of this technological revolution. It was selected to launch the first commercial cellular network in the United States.
Network Details: The network launched by Ameritech in Chicago was based on the Advanced Mobile Phone System (AMPS) technology, which was the first-generation (1G) analog mobile phone system.
Initial Service: The service initially covered the Chicago metropolitan area, providing mobile communication to a limited number of subscribers. The first call on this network was made by Bob Barnett, president of Ameritech Mobile Communications, from a Chrysler convertible to the grandson of Alexander Graham Bell.
Rapid Expansion: Following the successful launch in Chicago, cellular networks quickly expanded to other major cities across the United States and eventually worldwide.
Technological Advancements: The introduction of cellular networks spurred rapid technological advancements, leading to the development of digital cellular networks (2G), and eventually to the sophisticated 4G and 5G networks we use today.
Cultural and Economic Impact: The widespread adoption of mobile phones transformed communication, making it more accessible and convenient. It also had significant economic implications, creating new industries and business models.
The launch of the first cellular network by Ameritech in Chicago was more than just a technological milestone; it was a catalyst for the mobile revolution that reshaped how people communicate, access information, and interact with the world. This event laid the groundwork for the interconnected, mobile-centric society we live in today.
Source: www.chicagotribune.com