Appendix 1: Symbols and Abbreviations
AP-10
A1.2 Abbreviations
Abbreviation Meaning
ACK Acknowledge
ACQ Acquire
Act Activate
AIS Automatic Identification System
ANT Antenna
AP Autopilot
ARCS Admiralty Raster Chart System
AUTO Automatic
AVAIL Available
AZ Acquisition zone
BCR Bow Crossing Range
BCT Bow Crossing Time
BRG Bearing
BRILL Brilliance
CAL Calibrate
CALC Calculated
CCRP Consistent Common Reference Point
CCRS Consistent Common Reference System
CDROM Compact Disc Read Only Memory
Ch Channel
CHG Change
COG Course Over the Ground
CORR Corrected / Correction
CPA Closest Point of Approach
CPU Central Processing Unit
CRS Course
CTW Course Through the Water
DGPS Differential GPS
DISP Display
DIST Distance
DR Dead Reckoning
E East
EBL Electronic Bearing Line
ECDIS Electronic Chart Display and Information System
ENC Electronic Navigational Chart
EP Estimated Position
EQUIP Equipment
ERR Error
ETA Estimated Time of Arrival