What is the basic function of the SART device in emergencies?

The basic function of the Search and Rescue Transponder (SART) in emergencies is to help locate a distressed vessel using radar signals. A SART is activated when a vessel is in distress, and it transmits a series of radar signals in response to interrogation from nearby vessels or rescue aircraft. These signals appear as distinct markers on the radar display of the searching vessels, enabling them to pinpoint the location of the distressed vessel quickly.

While radar waves are indeed sent by the SART, the primary purpose is not just the transmission itself but the enhancement of search and rescue operations by providing accurate location information through radar. This differentiates it from other devices that may measure weather conditions or facilitate long-range communication, which do not serve the same specific life-saving purpose during maritime emergencies. Therefore, understanding the SART’s function is crucial for effective emergency response in maritime situations.