[Discuss-gnuradio] GPS tracking on a map over mobile app software using RF

[Antti Ruohonen]

Hello, I tried to search for any mobile applications (done or in 
progress) that used GNU Radio or any other software to transfer mobile 
phone GPS data over radio.

For example, there is a map on the mobile app, where you can see each 
mobile devices' location as it sends the GPS data to the other devices 
over the radio frequencies.

Are there any features like forementioned in GNU Radio or any similar 
projects? I'm asking because in crowded events the normal mobile data 
frequencies are so heavily used that they are unavailable, so other 
radio frequencies might be less congested. Thank you.