135. What is meant by the term «Seelonce Mayday»?

Stations not directly involved with the on-going Distress communications may not transmit on the Distress frequency or channel.
Stations remaining off the air to safeguard proprietary information.
Two three-minute silent periods, at 15 and 45 minutes after the hour, that provide a transmitting "window" for distressed vessels to transmit Distress alerts using J3E.
Communications on a Distress frequency or channel is banned for 24 hours following the cessation of the Distress traffic.

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