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3. DSC OPERATION FOR NON-DISTRESS CASES
3-4
3.1.2 Receiving acknowledgement of coast or ship call
1. After a coast or ship call is sent, the equipment waits for acknowledgement of
the call, showing the display below.
Waiting for
acknowledgement.
COAST ID : 003456789
ROUTINE
TCmd1 : SIMPLEX TP
TCmd2 : NO INFO
CH : 12
TIME TO GO : 3M30 S
The timer starts counting down the maximum time to wait for acknowledgement,
five minutes.
2. One of the following three messages appears. "No response! Try calling
again?" appears after the timer counts down to zero. It means the receiving
station did not respond.
Able acknowledge
call received.
ROUTINE
TCmd1 : SIMPLEX TP
TCmd2 : NO INFO
CH : 12
Unable acknowledge
call received.
ROUTINE
CANCEL ALARM
TCmd1 : UNABLE
TCmd2 : NO REASON
CH : NO INFO
CANCEL ALARM
FROM : 003456789
FROM : 003456789
Able acknowledge call received Unable acknowledge call received
No response!
Try calling again?
COAST ID : 003456789
ROUTINE
TCmd1 : SIMPLEX TP
TCmd2 : NO INFO
CH : 12
PRESS ENT
No response from station
A reason of Unable acknowledge is displayed. In case of QUEUE INDICATION,
the channel will change to one that the coast station specifies.
3. Do one of the following depending on the message shown above.