GMDSS: Element 7

1. A All Inmarsat units must use a dedicated key that can be pressed for immediate action.
2. B By adding the word "Distress" in the first line of the message's preamble.
3. C By pressing dedicated key(s) for this purpose or using menu-driven features to produce a Distress priority message.
4. D By transmitting the Distress message on the U.S. Coast Guard's dedicated monitoring channel.

Tip: press A-D to answer