Appendix-2
Appendix 2 List of standard terms, units and abbreviations
Term Abbreviation
Acknowledge ACK
Acquire, Acquisition ACQ
Acquisition Zone AZ
Adjust, Adjustment ADJ
Aft AFT
Alarm ALARM
Altitude ALT
Amplitude Modulation AM
Anchor Watch ANCH
Antenna ANT
Anti Clutter Rain RAIN
Anti Clutter Sea SEA
April APR
Audible AUD
August AUG
Automatic AUTO
Automatic Frequency
Control
AFC
Automatic Gain Control AGC
Automatic Identification
System
AIS
Automatic Identification
System – Search and
Rescue Transmitter
AIS-SART
Automatic Radar Plotting
Aid
ARPA
Autopilot AP
Auxiliary System/Function AUX
Available AVAIL
Azimuth Indicator AZI
Background BKGND
Bearing BRG
Bearing Waypoint To
Waypoint
BWW
Bow Crossing Range BCR
Bow Crossing Time BCT
Brilliance BRILL
Built in Test Equipment BITE
Term Abbreviation
Calibrate CAL
Cancel CNCL
Carried (for example,
carried EBL origin)
C
Central Processing Unit CPU
Centre CENT
Change CHG
Circularly Polarised CP
Clear CLR
Closest Point of Approach CPA
Compact Disk Read Only
Memory
CDROM
Consistent Common
Reference Point
CCRP
Consistent Common
Reference System
CCRS
Contrast CONT
Coordinated Universal
Time
UTC
Correction CORR
Course CRS
Course Over the Ground COG
Course Through the Water CTW
Course To Steer CTS
Course Up C UP
a
Cross Track Distance XTD
Cursor CURS
Dangerous Goods DG
Date DATE
Day DAY
Dead Reckoning, Dead
Reckoned Position
DR
December DEC
Decrease DECR
Delay DELAY
Delete DEL
Departure DEP
Depth DPTH