Briefing: Rescue 21 is the Coast Guard's advanced command, control and communications system, engineered to better locate mariners in distress and save lives and property at sea. By harnessing state-of-the-market communications technology, Rescue 21 enables the Coast Guard to execute its missions with greater agility and efficiency. The Rescue 21 Very High Frequency (VHF) Frequency Modulated (FM) communications system is replacing the legacy National Distress Response System deployed in the 1970s. One of the most significant improvements is Rescue 21's ability to accurately identify the position of a caller in distress, thereby reducing search times. This is achieved through lines of bearing to the source of the VHF radio transmission.
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