Why does a cell tower need to be massive to transmit data to a smartphone but the phone’s extremely small antenna can transmit data back over the same distance?
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Because the cell tower is both a very loud voice and a very large ear. The phones antenna being small means it has a very quiet voice, so the cell tower needs to be big to be a big enough ear to hear it, and the phones small antenna is a very small ear that has difficulty hearing unless it’s hearing a very loud voice, so the cell tower has to be big to speak loud enough.
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