PST Exit Exam • Set 8 Question 20 of 30

What satellite frequency is utilized by modern Emergency Position Indicating Radio Beacons (EPIRBs) for COSPAS-SARSAT distress alerts?

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Direct Answer

Option A: 406 MHz

Modern EPIRBs operate within the international COSPAS-SARSAT satellite system, utilizing the 406 MHz frequency band to transmit digitally encoded distress alerts directly to search and rescue authorities, complemented by a 121.5 MHz homing signal for local navigational recovery.

All Options

A

406 MHz (Correct Answer)

B

121.5 MHz only

C

2182 kHz

D

9 GHz

Detailed Explanation & Context

Modern EPIRBs operate within the international COSPAS-SARSAT satellite system, utilizing the 406 MHz frequency band to transmit digitally encoded distress alerts directly to search and rescue authorities, complemented by a 121.5 MHz homing signal for local navigational recovery.

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Personal Survival Techniques (PST).

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