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Appendix F: List of abbreviations
s
AC Alternating Current
CD Compact Disk
COG Course Over Ground
CPA Closest Point of Approach
DC Direct Current
DDS Differential Data Signal
DGPS Differential Global Positioning System
EBL Electronic Bearing Line
FTC Fast Time Constant
GPS Global Positioning System
GRIB GRIdded Binary
GUI Graphical User Interface
hsb High Speed Bus
kHz kilo Hertz
kts knots
m meters
MARPA Mini Automatic Radar Plotting Aid
MOB Man OverBoard
nm nautical miles
NMEA National Marine Electronics Association
NOAA National Oceanographic and Atmospheric Administration
PC Personal Computer
RAM Random Access Memory
ROM Read Only Memory
RX Receive
SHM Ships Heading Marker
sm Sonar Mark
CDI Course and Deviation Indicator
SOG Speed Over Ground
SST Sea Surface Temperature
TCPA Time to Closest Point of Approach
198 RayTech RNS V6.0 - Users Guide
TVG Time Varied Gain
Tx Transmit
USB Universal Serial Bus
VMC Velocity Made good over Course
VMG Velocity Made Good
VRM Variable Range Marker
PCMCIA Personal Computer Memory Card International Association
GHz Giga Hertz
XTE Cross Track Error
WAYPT Waypoint