EPIRB, PLB, SART and Search Location
The alerting and homing roles of 406 MHz beacons, personal beacons, radar or AIS search-and-rescue transponders, registration and safe testing.
How to prepare for the Marine Radio SRC
Build from station licensing and radio controls to disciplined voice and DSC traffic, then rehearse distress, urgency, safety, false-alert and GMDSS decisions on training equipment.
Core concepts
Concept 1
An EPIRB is associated with the vessel and sends a 406 MHz satellite distress alert; a PLB is personal equipment and current UK carriage and registration rules must be followed.
Exam cue: Separate first alert, identification and final homing functions.
Concept 2
A radar SART or AIS-SART helps rescue units locate survival craft or casualties after the initial alert using different detection and display methods.
Exam cue: Check registration and coded identity after purchase, transfer, reflagging or contact change.
Concept 3
Beacon registration connects identity and emergency contacts to rescue authorities; testing, battery, hydrostatic release and disposal follow manufacturer and registry instructions.
Exam cue: Use only the prescribed self-test and never activate a live beacon casually.
Risk pitfalls and guardrails
Treating a PLB as a complete replacement for vessel VHF and EPIRB planning.
Guardrail: Do not present the 601-item authoring target as an official RYA paper and do not treat static study as a substitute for the recognised written and practical examination.
Failing to update registry data after ownership or emergency-contact changes.
Guardrail: Do not present the 601-item authoring target as an official RYA paper and do not treat static study as a substitute for the recognised written and practical examination.
Testing a SART or beacon in a way that creates a false operational alert.
Guardrail: Do not present the 601-item authoring target as an official RYA paper and do not treat static study as a substitute for the recognised written and practical examination.
Memory anchors
EPIRB
Vessel emergency beacon using 406 MHz satellite alerting and registered identity.
PLB
Personal locator beacon whose carriage and registration must match current rules.
SART
Search-and-rescue transponder that helps rescue units home on survival craft.
Register
Accurate vessel, owner and emergency-contact data accelerates rescue decisions.
Self-Test Only
Follow the maker's approved test method without transmitting a live distress.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
What is the principal alerting role of a 406 MHz EPIRB?
How does a PLB differ in primary association from an EPIRB?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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