Appendix B: List of Abbreviations
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Appendix B: List of Abbreviations
BDI
Bearing Deviation Indicator
BTW
Bearing To Waypoint
CDI
Course Deviation Indicator
COG
Course Over Ground. The actual direction of your vessel
’
s movement over
the ground.
dGPS
Differential Global Positioning System
DTG
Distance To Go
EMC
Electro-Magnetic Compatibility
ETA
Estimated Time of Arrival
GPS
Global Positioning System
HDOP
Horizontal Dilution Of Precision. The multiplicative factor that modifies
ranging error. It is caused solely by the geometry between your vessel and
your set of satellites.
MOB
Man OverBoard
NMEA
National Marine Electronics Association (interconnection standard)
SD
Satellite Differential
SOG
Speed Over Ground. The rate of movement of the vessel over the ground.
TTG
Time To Go
UTC
Universal Time Constant - also known as GMT
WPT
Waypoint
XTE
Cross Track Error