Emergency Locator Transmitters (ELTs) cover fixed and deployable distress-signalling devices operating on 406 MHz COSPAS-SARSAT frequencies, incorporating GPS-derived position encoding, automatic crash-activation mechanisms using g-force sensors, and TSO-C126/ED-62 certified electronics, together with associated mounting hardware, antenna systems, and lithium battery power sources compliant with DO-160 environmental qualification standards.
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