Chapter 5: Digital Selective Calling (DSC) 45
5.5 Distress Calls
For a Distress Call transmission, the Ray54 takes the position and time
information from the input NMEA data along with your MMSI and converts
it into a digital “packet”. When transmitted, this digital information lets other
ships and shore stations equipped with appropriate DSC equipment know
where you are and that you are in a Distress situation.
Your call can specify the nature of the Distress (designated call) or not
(undesignated call). When you make a Designated Distress Call, you can
select from the following types:
•UNDESIG (Undesignated)
•FIRE
• FLOODING
• COLLISION
• GROUNDING
• LISTING
•SINKING
• ADRIFT
• ABANDONING (Abandoning Ship)
•PIRACY
•MANOVERBD (Man Overboard)

Sending a Distress Call

Open the spring-loaded door on the front panel of the main unit.