Rescue App Needs No Cell Service

Rescue App Needs No Cell Service
Dec-30-17
A new app and smart receiving device could help locate people lost in areas without cell signal.

The system, from a team at the Universidad de Alicante, relies on a smartphone’s ability to emit detectable mobile phone signals even when the phone is out of range of mobile coverage. A special app created by the team emits a WiFi signal that functions as a distress beacon that can be picked up by a small receiving device from a distance of 1.8 miles. The receiving device can be easily carried by rescue teams, and costs a fraction of current professional devices.





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