The need for clear and reliable communication has driven technology forward for centuries. The longer communication’s reach, the smaller the world becomes. When it comes to cell phones, seamless network coverage and low power draw are the ideals that continually spawn R&D and the eventual deployment of new equipment. Almost all of us carry a cell phone these days. It takes a lot of infrastructure to support them, whether or not we use them as phones. The most recognizable part of that infrastructure is the communications tower. But what do you know about them? Communication towers are all around us in various shapes and forms. Some towers serve several kinds of signals. They transmit one-way broadcasts like AM/FM radio and television signals while also handling two-way cellular traffic using various protocols. Most towers simply elevate and support communication antennas, but there are some called mast radiators that actually act as the antenna themselves. AM radio and other low-frequency towers fall into this category. In this article, I’m going to focus on a particular species of communications tower — the cellular kind. A cell site is mainly two things: arrays of two-way ...