JLR-10 Instruction Manual.pdf - Echomaster Marine Ltd.
JLR-10 Instruction Manual.pdf - Echomaster Marine Ltd.
JLR-10 Instruction Manual.pdf - Echomaster Marine Ltd.
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<strong>JLR</strong>-<strong>10</strong> GPS Compass<br />
Key Terms<br />
GPS satellites<br />
Term<br />
Description<br />
The term is an acronym that represents the Global Positioning System,<br />
which is managed by the US Department of Defense to support its<br />
navigation aid system.<br />
DGPS<br />
The term is an acronym that represents the Differential Global<br />
Positioning System, which is a system to improve the position fixing<br />
accuracy by receiving the correction data with a beacon receiver for a<br />
given GPS satellite, which is transmitted by the beacon station with a<br />
known position.<br />
Position fixing<br />
The term means to obtain the current position of your vessel with the<br />
GPS or DGPS receiver.<br />
2D (Two-dimensional position fixing)<br />
The term 2D means the position fixing with data obtained from the satellites<br />
and antenna height information.<br />
3D (Three-dimensional position fixing)<br />
The term 3D means the position fixing with four or more satellites information<br />
only.<br />
HDOP<br />
The term is an acronym that represents the Horizontal Dilution of<br />
Precision, which reflects the position fixing accuracy. The accuracy<br />
increases as the value decreases.<br />
The value increases when the satellites are gathered close to each other,<br />
and it reduces when the satellites are spattered, which in turn means<br />
increased accuracy.<br />
Route plan<br />
This is the plan that consists of the multiple waypoints registered in the<br />
order of navigation.<br />
CDI<br />
The term is an acronym that represents the Course Deviation Indicator,<br />
which includes information on the deviation from a given planned course<br />
and direction to be steered.<br />
Arrival alarm<br />
The alarm notifies that your vessel has arrived at the preset distance<br />
from a given destination.<br />
Anchor alarm<br />
The alarm notifies that your vessel has drifted away from the destination<br />
by the preset distance.<br />
Off-course alarm<br />
The alarm notifies that your vessel has been deviated from the planned<br />
course by the preset distance.<br />
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