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Comment: Uplink signal strength? (Score 1) 119 119

Mobile phones manage to transmit back to their towers despite being small, low-power devices. The key: the base station's receivers are very sensitive and the coding schemes used for uplink transmission include more error detection/correction.

Granted, mobile phones don't work over the vast distances used by broadcast radio and television, but they serve as a good example of a low-power, two-way transmission system.

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