I get how the phone can download from the cell tower, because cell sites use 20-50W directional antennas, much more powerful than the phone, so they can cover a large area.
But the phone’s antenna is omnidirectional, usually 1W max. That’s as powerful as a Wi-Fi access point. So how can it reach the cell site 2 miles away? Is it because cell site antennas have high gain, so they can pick up a very faint signal?
In: 70
They can change the modulation and code rate to match the quality of the signal.
They “speak” in a condensed manner when the signal is good, and stretch and dilute the signal when the reception is poor. To put it in more human terms (English is not my native language, but I try) : When the signal is good, they may say something like:
>People can stand less heat and humidity that we thought. It’s 31°C wbt, not 35°C.
Or they may say something like:
>Humans can’t endure temperatures and humidities than previously thought. It has been widely believed that a wet bulb temperature of thirty five degrees celsius at 100% humidity was the maximum a human could endure before they could no longer adequately regulate body temperature. But a new study found that the actual maximum wet bulb temperature is lower, only thirty one degrees celsius, or eighty seven degrees fahrenheit at 100% humidity, and people risk heat stroke or even death at higher temperatures.
And when even that is not enough to adequately understand despite the poor signal, they can switch to
>People: Papa, Echo, Oscar, Papa, Lima, Echo; can: Charlie, Alpha, November; stand: Sierra, Tango, Alpha, November, Delta; ….
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