What feature is not found on 406 MHz satellite EPIRB units?
Official USCG Answer & Rule Citation
Correct Answer: Option B — Aural locator signal.
Satellite EPIRBs are designed for silent distress alerting and positioning without emitting audio tones. They feature a 406 MHz digital transmitter, a 121.5 MHz homing beacon, and a hydrostatic float-free bracket, but do not incorporate an aural locator signal.
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