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APPENDIX
AP-23
Terminology, Units, Symbols
Terminology
Abbrevia-
tion
Meaning
Abbrevia-
tion
Meaning
2D Two Dimensional Positioning
DTL Detail
3D Three Dimensional Positioning
EEast
ABM Addressed Binary Message
E. G for example
ADRS Address
EMMA European Multiservice Meteoro-
logical Awareness system
AIS Automatic Identification System
ENI Unique European Vessel Identifi-
cation Number
ALARM Alarm
ENT Enter
ALT Altitude
EPFS Electronic Position Fixing System
ANT Antenna
ERI Electronic Reporting International
APR April
ERR Error
AtoN Aids to Navigation
ETA Estimated Time of Arrival
AUG August
EXT External
AUTO Automatic
FEB February
AVAIL Available
FIX Fix
BRG Bearing
FULL Full
CH Channel
GND Ground
CHG Change
GNSS Global Navigation Satellite System
CLR Clear
GPS Global Positioning System
CNCL Cancel
HHigh
COG Course Over the Ground
HDG Heading
CONT Contrast
HECT Hectometer
CPA Closest Point of Approach
HI High
CPU Central Processing Unit
HS Harmful Substances (applies to
AIS)
CRS Course
HW Hardware
D2D Differential and 2D
I/O Input/Output
D3D Differential and 3D
ID Identification
DATE Date
IF Interface
DAY Day
IFM International Function Message
DECR Decrease
IMO International Maritime Organiza-
tion
DEL Delete
INFO Information
DEST Destination
INT Internal
DG Dangerous Goods
INTRD Intrude
DGNSS Differential GNSS
JAN January
DGPS Differential GPS
JUN July
DIM Dimmer
LLow, left
DISP Display
L/L Latitude/Longitude
DNG Danger
LAT Latitude
DNGR Danger
LEN Length
DOP Dilution Of Precision
LOG Log
DPTH Depth
LON Longitude
DSC Digital Selective Calling
LR Long Range