38 APPENDIX
4. 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 Radar Plotting Aid ARPA
Autopilot AP
Auxiliary System/Function AUX
Available AVAIL
Azimuth Indicator AZI
Background BKGND
Bearing BRG
Bearing Waypoint To Waypoint BWW
Bottom Tracking BT
Bow Crossing Range BCR
Bow Crossing Time BCT
Bridge alert management BAM
Brilliance BRILL
Built in Test Equipment BITE
Calibrate CAL
Cancel CNCL
Carried (for example, carried
EBL origin)
C