A mobile unit in distress should transmit the appropriate alarm signal followed by the distress call and message on one or all international distress frequencies. Which of the following sets of frequencies is correct?
Direct Answer
Option D: 500 kHz, 2182 kHz, and 156.8 MHz
The frequency 500 kHz (radiotelegraphy), 2182 kHz (radiotelephony), and 156.8 MHz (VHF Channel 16) are the designated international distress and calling frequencies. While technology has shifted toward DSC, these remain the core frequencies for distress alerting.
All Options
Detailed Explanation & Context
The frequency 500 kHz (radiotelegraphy), 2182 kHz (radiotelephony), and 156.8 MHz (VHF Channel 16) are the designated international distress and calling frequencies. While technology has shifted toward DSC, these remain the core frequencies for distress alerting.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Personal Survival Techniques (PST).
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