Specifications

MT-550 39
INT
INDIVIDUAL
GROUP
>ALL SHIP'S
RECEIVED
DSC All Ship’s Call
• Push the SELECT/ENT knob or press the
CALL
key. The CALL TYPE menu
appears in the display.
USA INT
CALL TYPE
URGENT
SAFETY
PRESS CALL.
DSC Call Type
• Use the SELECT/ENT knob to select either URGENT or SAFETY.
• Press the
CALL
key. The Call Type Verification screen appears in the
display.
INT
SEND URGENT
CALL?
PRESS CALL.
Call Type Verification
• Call type must be verified.
• Press the
CALL
key to send the call. The ALL SHIP’S WAITING . . . .
screen appears in the display. Either URGENT or SAFETY appear to indicate
priority of the call.
INT
ALL SHIP'S
priority
WAITING....
Waiting For Voice Reply
• Your transceiver is automatically set to Channel 16. Listen for voice replies
from vessels which have received your call. There is no DSC ACK reply to
confirm that your call was received.
• Use the PTT button to continue voice communication. The Normal
Communication screen appears in the display.
• If there is no response to your call, press the
END
key. The Normal
Communication screen appears in the display.
Group Call
You can arrange with other vessels to use a group MMSID so that any vessel in a
group can contact all other vessels in the same group with a single DSC call.
Your group MMSID is stored in the same manner as your ship MMSID. Only one
group MMSID is stored at a time, but group MMSID’s can be changed as often as