Which EPIRB transmits a distress alert that is received and relayed by an INMARSAT satellite?

Official USCG Answer & Rule Citation

Correct Answer: Option C — L-Band EPIRBs

L-Band EPIRBs specifically operate within the Inmarsat geostationary satellite system frequencies to transmit distress alerts, distinguishing them from polar-orbiting 406 MHz Cospas-Sarsat beacon systems.

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