MT-550
31
USA
INT
DISTRESS!
Grounding.
HOLD 3 SEC.
Select the Nature of Distress
Nature of Distress
Undesign-
ated.
Fire or
Explosion.
Flooding.
Collision. Grounding.
Listing
or
Capsizing.
Sinking. Disable
& Adrift.
Abandoning
Ship.
Piracy
Attack.
Man
Overboard.
•
Hold the red button (as soon as the button is pressed again, an intermittent
acoustic alarm is sounded and the distress alert screen flashes until the
DISTRESS is sent automatically, in about 3 seconds). Before the distress is
sent, you may release the red button to reset the countdown timer.
•
An alarm sounds and the following screen appears as your distress message is
being transmitted.
INT
TX HI
SENDING
DISTRESS!
CALLING.
Sending Distress Call
•
The following screen appears indicating your distress message has been
transmitted.
INT
DISTRESS!
WAITING....
AUTO
RE-TRNSMIT
Distress Call Sent
The DSC distress message is automatically sent on channel 70 and your transceiver
is automatically set to Channel 16 in order to listen for, and respond to, voice replies
from SAR authorities or other vessels which may have received your distress call.
The alarm will sound every 15 seconds to remind you that a distress message is
active. Unless canceled, the distress message is automatically retransmitted every
3 1/2 to 4 1/2 minutes.
Re-transmissions of DSC distress calls are canceled automatically when a DSC
acknowledgment is received from an authorized SAR coast station, or canceled
manually by you.
