121.5 elt
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B406-4
The B406-4 has been modified to interface with Boeing’s Master Caution System in conjunction with the DZUS mounted cockpit remote panel (P/N 453-0161) for the B737 and is furthermore approved for use on all models of the B747, B757, B767 and B777.
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C406-1
The Artex C406-1 is an emergency locator transmitter (ELT) that has been built to meet the rigorous requirements of TSO C126, and pass even the toughest safety tests. The C406-1 ELT automatically activates during a crash, and transmits a 406 MHz digital message to a worldwide network of satellites, which allows first responders to quickly and accurately identify not only where you are, but who you are as well. These factors help take the ‘search’ out of ‘search and rescue’, and allow local first responders to more easily bring you home.