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5. ROUTINE MESSAGE CALLING, RECEVING
5-15
After 10 seconds passed or when "Agree" is chosen,
the working frequency is changed with the message
shown below.
Choose "Pause".
Accept New
Working Freq
CANCEL: CLOSE WINDOW
Choose "Agree".
Change COM Frequency
Agree Disagree
Count down has been paused.
Change COM Frequency
Agree Disagree
Count down xx sec. Pause
Receiving message by NBDP Terminal Unit
After receiving a group call, confirm the following.
•The control unit’s display shows “OCCUPIED” and the Tx and Rx frequencies.
•The message from the sending station appears on your NBDP Terminal Unit.
5.3 Geographical Area Call
The geographical area call is for sending a call to all ships within the area you designate in
your geographical area call. In the figure below, for example, the call will be sent to all ships
within 24-34°N, 135-140°W (QUAD) and 34°N, 140°W, range: 500 NM (CIRCLE).
Note: At the high-latitude area, set the area so that the longitude is within 99°. If the setting
is over 99°, it may be adjusted automatically.
Reference point
(For example,
34°N 140°W)
5°
140°W
135°W
10°
34°N
24°N
QUAD
Reference point
(For example,
34°N 140°W)
500NM
CIRCLE