All emergency signals are done using whistles and microphone.

They can block emergency signals or important police calls.

Emergency signals believed to have come from Argentina's missing naval submarine ARA San Juan have been detected.

They are still included in survival kits for emergency signaling to search and rescue aircraft.

They are still included in survival kits for emergency signalling to search and rescue aircraft.

The portable sensing unit senses, stores, and transmits a vibration signal, oxygen concentration information, and emergency signals.

A lighting system and method for broadcasting colored lights as emergency warning signals from a light source.

Emergency signals and specific duties allocated to crew members in the muster list; muster stations; correct use of personal safety equipment.

The MRCC in Canberra has subsequently picked up the yacht’s emergency signals and is now co-ordinating a multinational rescue mission.

The MRCC in Canberra has subsequently picked up the yacht’s emergency signals and is now coordinating a multinational rescue mission.

This facilitates simple retrofitting of existing streetlighting infrastructure.

LEDs that provide street illumination are used to create emergency signals.

Posing as gas-makers, they penetrate the storage, neutralize the alarm signals and drill a hole in the wall of the safe.

These emergency signals sent from the mobile terminal to the base station are location-independent.

The MRCC in Canberra has subsequently picked up the yacht’s emergency signals and is now coordinating a multinational rescue mission.