Terminology - JRC JLR-7500 Instruction Manual

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Term
2D (2 dimension)
3D (3 dimension)
Active route
Anchor alarm
Arrival alarm
Beacon information
Boundary alarm
CCRP
CDI
Checksum
COG
Course
CURRENT
Data route
Default gateway
DISP-DPU
DGPS
FRAM
Geodetic
GPS Satellite (GPS)
HDOP
IEC
IP address

Terminology

Meaning (Descriptions)
Positioning with antenna elevation height in addition to satellite
data.
The three dimensional position fix, 4 or more satellites required.
Route that is currently used by a ship
This alarm monitors that the own ship is the preset distance or
more away from the waypoint.
This alarm informs that the own ship has traveled the preset
distance, approaching the waypoint.
Beacon data which is broadcast by message type 16.
This alarm informs that the own ship has got into the preset route.
Abbreviation of Consistent Common Reference Point. Reference
position of the own ship.
Abbreviation of Course Deviation Indicator. This indicator shows
information on the deviation from the scheduled route and on the
direction into which the ship should be steered.
An error detection method to check that the data has been correctly
transmitted.
Course Over Ground.
Direction in which the ship is traveling, which is the bearing mainly
displayed by the GPS.
Sea and ocean currents, expressed in speed and direction.
Ship route data that is stored in the memory of the equipment
Equipment connected externally from a constructed network.
The main circuitry of display unit.
Abbreviation of Differential Global Positioning System. GPS
satellite error data sent from a reference station whose position is
accurately known is received via beacon from a beacon station,
improving positioning accuracy.
Nonvolatile memory using a ferroelectric substance.
Conditions for expressing position via latitude and longitude.
Abbreviation of Global Positioning System. Refers to satellites
launched for navigational support of military vessels managed by
the United States Department of Defense.
Abbreviation of Horizontal Dilution of Precision. Indicates accuracy
of positioning. The smaller the number, the higher the accuracy. If
GPS satellites are unevenly distributed, this number will grow. If
GPS satellites are evenly distributed, this number will be smaller.
IEC
is
the
abbreviation
Commission. It is an international standard governing electrical
and electronic technologies.
ID number assigned to equipment on a constructed network.
of
International
Electrotechnical
vii

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