Question 1-21D6

A 406 MHz satellite EPIRB (Emergency Position Indicating Radio Beacon) provides multiple critical advantages for maritime distress situations. * **A) Compatibility:** The 406 MHz band is specifically designed for use with the international COSPAS-SARSAT satellite system, which is a crucial component of the Global Maritime Distress Safety System (GMDSS). This ensures worldwide detection and relay of distress alerts. * **B) Fast, Accurate Location:** When activated, the EPIRB transmits a signal to COSPAS-SARSAT satellites. Many modern 406 MHz EPIRBs also include an internal GPS receiver, which embeds precise position data into the distress message, allowing for very rapid and accurate location determination by search and rescue (SAR) authorities like the Coast Guard. * **C) Digitally Encoded Message:** The 406 MHz signal contains a unique, digitally encoded identification code. This code is registered with authorities and provides SAR coordinators with crucial information about the vessel and its owner, including contact details and vessel particulars, even before rescue assets are deployed. Since options A, B, and C are all valid and significant advantages of a 406 MHz satellite EPIRB, the correct answer is D) All of the above.