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<p>radio service is divided into cells in a pattern dependent on terrain and reception characteristics. These cell patterns roughly take the form of regular shapes, such as hexagons, squares, or circles although hexagonal cells are conventional. Each of these cells is assigned with multiple frequencies (f<sub>1</sub>&nbsp;-&nbsp;f<sub>6</sub>) which have corresponding <a href="page.php?w=radio_base_station">radio base station</a>s. The group of frequencies can be reused in other cells, provided that the same frequencies are not reused in adjacent</p><p>
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