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APPENDIX 3 ABBREVIATIONS LIST
AP-14
Icons
UTC Coordinated Universal Time/ Uni-
versal Time, Coordinated
VOL Volume
VDR Voyage Data Recorder WR Watchkeeping Receiver
Icon Meaning Icon Meaning
Speaker ON Number keys
Speaker OFF CHANNEL/ENTER knob
Unread message Name of the ship registered in
address book
Auto ACK for individual mes-
sage is ON.
Name of the ship registered in
AIS target list
Radio field intensity on the
RT screen
Data is being updated regular-
ly.
Radio field intensity on the
screens except the RT
screen
Unsolved error
Send a distress alert of your
ship.
Transmitting
• Receive a distress alert
from a ship in distress.
• Send a distress relay on
behalf of a ship in dis-
tress.
Channel region is INT’L.
Send a general (safety, ur-
gency or routine) message.
Channel region is USA.
Receive a general (safety,
urgency or routine) mes-
sage.
Channel region is WX.
Communicate via radiotele-
phone
Channel region is CANADA.
Equalizer mode is on. Channel region is INLAND-W.
Output power is high. Channel region is PRIVATE.
Output power is low. Channel region is MEMORY.
Simplex frequency Dual watching
Duplex frequency Scanning
Distress frequency Squelch is opened.
Abbreviation Term Abbreviation Term
AIS
BUSY