What is the action that a GMDSS Radio Operator should take when a DSC Distress alert is received?

Correct Answer: Option B — The Operator should immediately set continuous watch on the radiotelephone frequency that is associated with frequency band on which the Distress alert was received.

Upon receiving a DSC distress alert, GMDSS regulations require the operator to immediately monitor the associated radiotelephone distress frequency (e.g., 2182 kHz for MF, or Ch-16 for VHF) to listen for follow-on voice traffic and assess if assistance can be rendered.