Glossary - JRC JMA-7710-6 Instruction Manual

This section explains common maritime terms and the terms used for this equipment.
ATA (Automatic Tracking Aid) :
Fast Time Constant (FTC) :
Sensitivity Time Control (STC) :
Bearing :
COG :
CPA/TCPA :
CUP (Course-UP) :
EBL (Electric Bearing Line) :
GPS (Global Positioning System) :
Ground stabilization :
Guard zone :
Heading :
HL :
HUP (Head-UP) :
IMO :
IR :
NM :
NSK :
NUP (North-UP) :
Own track :
Range ring :
RM (Relative Motion) :
RM display :
Relative bearing :

GLOSSARY

Supporting equipment for automatically preventing clash.
Rain and snow clutter suppression.
Sea surface clutter suppression.
Direction
Course over Ground
Closest point of approach and time to closest point of approach
limit as defined by the observer to give warning when a tracked
target or targets will close to within these limits from own
ship
An azimuth stabilized display in which a line connecting the
centre of own ship with the top of the display is own ship's
intended course
Electric bearing line centering the position of the own ship.
Internationally-used positioning system.
A mode of display whereby own ship and all targets are
referenced to the ground using ground track or set and drift
inputs
A zone in which an alarm is given when a target is detected
The direction in which the bows of a ship are pointing
expressed as an angular displacement from north
Heading Line
Display mode in which the top of the screen corresponds to
the ship's head maker.
International Maritime Organization
Interference Rejector
Nautical Mile (1 nm = 1,852 m)
Gyro compass and log interface
An azimuth stabilized display in which a line connecting the
centre of own ship with the top of the display is north true
bearing
Automatic track display function.
Fixed range ring.
The combination of relative course and relative speed
A display on which the position of own ship remains fixed
and all targets move relative to own ship
The direction of a target from own ship expressed as an angular
displacement from own ship's heading
XVI