MDC-7000/7900 Series Chapter 2 Radar Basic Operation
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Specified course
< [C UP] selected >
< Heading deviated from course >
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Land
Target 1
Target 2 Target 2
Heading
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Land
Target 1
Heading
At the time of the XXX.X heading indication of own ship data at upper right of the display, H UP works
by non-stabilized mode.
Note:
• This is a presentation mode not stabilized in azimuth with fixed origin in which the radar image is
oriented “up” toward the top of the bearing scale.
• Radar echoes and tracked targets are shown at their measured distances and moving in a direction
relative to own ship’s heading.
• The heading line points from the CCRP to the top of the bearing scale showing 000 relative bearing.
• Target trails can use only relative mode.
For C UP (Course up mode)
When choosing Course up mode, current heading becomes the course at the top of the display and a
moving heading line indicates actual.
This mode is used to navigate towards a specified course.
It easily shows any deviation of own ship from the specified course.
Note:
• This is an azimuth-stabilized presentation in which the bearing scale can be oriented so that own
ship’s course on the bearing scale is vertically above the CCRP.
• The heading line points from the CCRP to own ship’s referenced heading on the bearing scale.
• If own ship’s heading differs from the course, then the heading line does not point vertically upwards
from the CCRP until the bearing scale is reset (manually or automatically) to reflect the course
alteration.
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Land
Target 1
Target 2
Heading
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