44
MT-550
If caller requests an invalid working channel:
•
UNABLE TO COMPLY
acknowledgement is automatically sent and the
following screen appears in the display.
USA
INT
10:55
P
name or ID
UNABLE TO
COMPLY SENT
Unable to Comply ACK Screen
Last Call Received
Replies to incoming calls are made using the call log. The call log holds thirty two
entries and the last call received is on top of the list. When the thirty third call is
received, the oldest entry is lost. Making DSC calls from the call log is the like
making calls from the DSC calling directory.
To instantly reply to the last call received or any log entry:
•
Press the
CALL
key. The DSC calling menu appears in the display.
•
Use the
SELECT/ENT
knob to select the
RECEIVED
topic on the menu.
INT
INDIVIDUAL
GROUP
ALL SHIP'S
>RECEIVED
DSC Call Menu
•
Push the
SELECT/ENT
knob or Press the
CALL
key. The most recent call in
the call log appears in the screen.
INT
06:03
P
name or ID
call type
18
priority
Last Call
•
Observe the type and priority of the last call logged.
•
Use the
SELECT/ENT
knob to select the entry to call.
•
Press the
CALL
key. An Individual Routine call is transmitted regardless of
the type and priority of the last call logged.
•
Proceed in the same manner as with normal DSC calls.
All Ship’s Call Received
An All Ship’s call is received from other vessels or coast stations within VHF range of
the transmitter. All Ship’s calls present Distress, Urgent or Safety information
important to all vessels in the area.
