A mobile network tower presumably uses tons of power to pump radio waves capable of reaching my phone, but how does my phone – with its comparably tiny power source – manage to send a response all the way back?

Question

A mobile network tower presumably uses tons of power to pump radio waves capable of reaching my phone, but how does my phone – with its comparably tiny power source – manage to send a response all the way back?

In: Technology

Answer 1

The mobile network tower uses tons of power to reach 10,000 phones all at the same time.

Your individual phone has sufficient power to talk back – the transmission really just *does* work with just a phone battery.