GMDSS Maintainer: Element 9

1. A A flag in the message is set to identify the transmission as a test alert.
2. B The validity of each Distress alert must be manually verified by LES/RCC personnel.
3. C A Distress acknowledgement is sent from the LES/RCC to the originating station.
4. D LES/RCC personnel cannot distinguish between valid and TEST transmissions.

Tip: press A-D to answer