Sending out Radio Frequency (RF) Signals with Android App

android radio
sillypurple picture sillypurple · Dec 12, 2011 · Viewed 79.7k times · Source

Is it possible to built an app which sends out RF signals? Is it possible to control the exact frequency? So each button would send different frequency signal? How far those signals usually reach?

Answer

Paul R picture Paul R · Dec 12, 2011

Yes, but you need some external RF hardware - check out GNU radio and the general subject area of Software Defined Radio.

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