Satellite EPIRBs are one of the very useful GMDSS systems designed for automated transmission of distress alerts. The 406 MHz satellite EPIRB is very reliable and designed to provide rapid alerting, identification and accurate location information to search and rescue authorities.
SARTs (Search and Rescue Transponder) are primarily designed to be used in lifeboats or liferafts, but can also be used on board a vessel or even in the water. SARTs operate in the 9 GHz marine radar band, and when interrogated by a searching ship's radar, it responds with a signal which is displayed as a series of dots on a radar screen. The range achievable from a SART is directly proportional to its height above the water. |