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How Cell Phones Work
Beginning of paper
Each day about 30,000 people in the United States sign up for and start using a cellular phone. Therefore it is likely that you or someone you know has a cell phone and uses it on a regular basis. They are such great gadgets - with a cell phone you can talk to almost anyone from just about anywhere, because about 80% of the U.S. has coverage (Dan ....
Middle of paper
....at a city can be chopped up into small cells, and that the cells allow extensive frequency reuse across a city. Frequency reuse is what lets millions of people own cell phones without problems. It works because the carrier chops up an area to about 10 square miles (Dang).
In the dark ages before cell phones, people used radiotelephones in their ca.... |
| Word count: 999 |
Page count: 4 |
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