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Word Count: 578
CELLULAR PHONES By RAY P CELLULAR PHONES Each day something like 30000 people in the United States sign up for and start using a cellular phone With a cell phone you can talk to anyone on the planet from just about anywhere 80 of the US has coverage A cell phone is really an extremely sophisticated radio A cell phone is a duplex device which uses one frequency for talking and a second separate frequency for listening A cell phone can communicate on 1664 channels and operate within cells They can switch cells as they move around Cells give cell phones incredible range Someone using a cell phone can drive clear across a city and maintain a conversation the entire time The way a cellular phone does this is the carrier chops up an area such as a city
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