User's Manual

GLOSSARY
GROSSARY-d
S
SART Search And Rescue Transponder
Radar transponder capable of operating in the 9GHz band
Sea stabilization A display mode in which speed and course information are referred to the sea.
Sea state Status of the sea condition due to the weather environment, expressed as a sea
state 0 for flat conditions with minimal wind, to sea state 8 for very rough sea
conditions.
SET The current direction for manual correction or the current speed on the horizontal
axis of the 2-axis log is displayed.
Sleeping AIS target A target indicating the presence and orientation of a vessel equipped with
AIS in a certain location.
SOG Speed Over the Ground
The speed of the ship relative to the earth, measured on board of the ship.
SP Short Pulse
STAB Stabilization
STW Speed Through Water
The speed of the ship relative to the water surface.
T
TCPA Time to Closest Point of Approach to own ship
Test target Radar target of known characteristics used for test requirement
TM True Motion
A display across which own ship moves with its own true motion.
Trails Display Radar Trails (Other Ships' Trails)
True course The direction of motion relative to ground or to sea, of a target expressed as an
angular displacement from north
True speed The speed of a target relative to ground, or to sea
True vector A vector representing the predicted true motion of a target, showing course and
speed with reference to the ground or sea
TT Target Tracking.
A computer process of observing the sequential changes in the position of a
radar target in order to establish its motion. Such a target is a Tracked Target.
TTG Time To Go.
Time to next waypoint.
TXRX Transceiver Unit