Appendix-3 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Term  Abbreviation 
Destination  DEST 
Deviation  DEV 
Differential GLONASS  DGLONASS 
a
 
Differential GNSS  DGNSS 
a
 
Differential GPS  DGPS 
a
 
Digital Selective Calling  DSC 
Display  DISP 
Distance  DIST 
Distance Root Mean 
Square 
DRMS 
a
 
Distance To Go  DTG 
Drift  DRIFT 
Dropped (for example, 
dropped EBL origin) 
D 
East  E 
Echo Reference  REF 
Electronic Bearing Line  EBL 
Electronic Chart Display 
and Information System 
ECDIS 
Electronic Chart System  ECS 
Electronic Navigational 
Chart 
ENC 
Electronic Position Fixing 
System 
EPFS 
Electronic Range and 
Bearing Line 
ERBL 
Emergency Position 
Indicating Radio Beacon 
EPIRB 
Emergency Position 
Indicating Radio Beacon – 
AIS 
EPIRB-AIS 
Enhance  ENH 
Enter  ENT 
Equipment  EQUIP 
Error  ERR 
Estimated Position  EP 
Estimated Time of Arrival  ETA 
Estimated Time of 
Departure 
ETD 
European Geo-Stationary 
Navigational Overlay 
System 
EGNOS 
Event  EVENT 
Exclusion Zone  EZ 
External  EXT 
F-Band (applies to radar)  F-Band 
February  FEB 
Foreword FWD 
Fishing Vessel  FISH 
 
Term  Abbreviation 
Fix  FIX 
Forward  FWD 
Frequency  FREQ 
Frequency Modulation  FM 
Full  FULL 
Gain  GAIN 
Geographics GEOG 
Geometric Dilution Of 
Precision 
GDOP 
Global Maritime Distress 
and Safety System 
GMDSS 
Global Navigation Satellite 
System 
GNSS 
Global Orbiting Navigation 
Satellite System 
GLONASS 
Global Positioning System  GPS 
Great Circle  GC 
Grid  GRID 
Ground  GND 
Grounding Avoidance 
System 
GAS 
Group Repetition Interval  GRI 
Guard Zone  GZ 
Gyro  GYRO 
Harmful Substances 
(applies to AIS) 
HS 
Head Up  H UP 
a
 
Heading  HDG 
Heading Control System  HCS 
Heading Line  HL 
High Frequency  HF 
High Speed Craft  HSC 
Horizontal Dilution Of 
Precision 
HDOP 
Identification  ID 
In  IN 
Increase  INCR 
Indication  IND 
Information  INFO 
Infrared  INF RED 
Initialisation  INIT 
Input  INP 
Input/Output  I/O 
Integrated Navigation 
System 
INS 
Integrated Radio 
Communication System 
IRCS 
Interference Rejection  IR