How does my tiny phone communicate with a cell tower so far away? How does it transmit my data to the cell tower?
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We are still receiving radio communications from small spacecraft that have left the solar system.
Cell towers are very sensitive, and the signals they are detecting/listening for are very distinct. Your phone will also adjust its transmitting power based on how close it is to the cell tower. If you are right at the edge of reception, your phone will transmit at its highest power and drain the battery faster.
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