JRC JMA-9832-SA Instruction Manual page 25

SEA:
Sea clutter suppression
SET:
The current direction for manual correction or the
current speed on the horizontal axis of the 2-axis log
is displayed.
SOG (Speed Over Ground):
Speed relative to the ground.
STAB (Stabilization):
Stabilization
TCPA (Time to Closest Point of Approach):
The time to approach the closest point from own
ship.
TM (True Motion):
True motion presentation
A presentation in which own ship and any other
target move depending on their individual
movements.
TRAILS:
Function of displaying tracks of other ships.
TRIAL:
Trial maneuvering
True Vector:
A target's true movement predicted as the result of
entering own ship's direction and speed.
VRM (Variable Range Marker):
Variable range marker
WATER
Stabilization relative to the water
– xxiii –