The distress signal CQD originated from the signal CQ, expressing "seeking you," or "all stations." The signal CQ was commonly used among wireless operators -- and land-based telegraphers before them ...

A new app called Silent Bodyguard features a panic button that sends an SOS distress signal with GPS coordinates to potential rescuers without alerting onlookers. While the $3.99 app, available on ...

A family lost in an Oregon forest used the Emergency SOS feature on their iPhone to survive. Search and rescue units were alerted by the distress call, The Chronicle reported. Apple's emergency SOS ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. DENVER (KDVR) — Douglas County Search and ...