What is meant by the term " radio silence "?
A. Stations remaining off the air to safeguard proprietary information.
B. Two three-minute silent periods, at the top and bottom of every hour, that provide a transmitting " window " for distressed vessels to transmit distress alerts.
C. Stations not directly involved with the on-going distress communications may not transmit on the distress frequency or channel.
D. Communications on a distress frequency or channel is banned for 24 hours following the cessation of the distress traffic.
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