| Uses, Who? popularity? statics? | ||
| [Cellphones.] | ||
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Cellphones have low powered transmitters in them,which have two signal strengths: 0.6 WATTS and 3 WATTS for a great comparison most radios transmit at 4 WATTS. The base station also transmits at low power. Low power transmitters have two advantages which are the transmissions of a base station and the phones within it's cell don't make it very far outside that cell. The same frequencies can be reused extensively across the city. The power consumption of the cellphone, which is normally battery operated and is very low. Low powered means small batteries.
Most new digital cellphones have entertainment programs on them ranging from simple dice throwing games to logical puzzles. About 20% of American teens more girls than boys own a cellphone. Cellphones are more popular in European and Asian countries than the United States. More than 90% Europeans or Asians own one compared to about 50% Americans. |
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