Cellular Systems

Written by Kevin Little
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Cellular systems have gone through incredible changes in just a few short years. Where once cell phones were large and bulky, new models are smaller and sleeker than we ever could have imagined. Cell phones were also considered a luxury at one time. Now, they are so ubiquitous that they seem more a necessity than a treat, especially in the business world.

As phones have changed, so have cellular systems. In fact, the term "cellular" is a bit outdated when used to refer to today's mobile-phone service. Cellular service originally described the way in which service was distributed through RF networks. While the world has switched to digital processing of signals (still called "cellular"), the cellular network is still used for smaller-scale projects.

Cellular systems for phones were first popularized by the Advanced Mobile Phone Service, or AMPS, network. The AMPS system divided areas into "cells" to make frequencies needed for conversation more widely available. These systems used the components so familiar to the RF aficionado, such as antennas and receivers.

Cellular Systems: Never Out of Style

Some things, like the use of antenna-based networks to send and receive signals, never really change. Many home users employ just this sort of technology when embarking on their own RF projects. While RF systems can be a challenge to set up, the completion of such tasks can be incredibly satisfying.


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