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?
In: 52
Because doing it that way is much more convenient than making the antenna on the cell tower phone sized and carrying around a cell tower sized phone.
Basically the total “strength” of the antennas at both ends matters. You can either have a small antenna on one end and a huge on the other, or a medium sized on both. Bigger antennas also make it easier to make it directional. That’s not useful with a phone that moves, but very useful with the mast as you can have several antennas each covering a different direction.
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