What is typically the first step for a GMDSS Radio Operator when sending a Distress priority message via Inmarsat?

In the context of GMDSS operations, the first step for a radio operator when sending a Distress priority message via Inmarsat is to press the Distress Button. This action triggers the emergency protocols associated with communication systems designed for maritime safety. By pressing the Distress Button, the operator initiates the distress alert process, which automatically sends a distress signal to satellite systems and alerts rescue coordination centers.

This is critical, as it allows for rapid transmission of the emergency situation without additional steps that may delay the response. The system is designed to prioritize and manage distress messages effectively to facilitate quick rescue operations. After this initial action, further communication with the Land Earth Station (LES) or notifying surrounding vessels can take place, but the pressing of the Distress Button is the foundational step to ensure that the urgency of the situation is communicated immediately.