Furuno GD-1700C - Manual (Page 104)

3. RADAR OPERATION
3-10
3.9.2 Description of presentation modes
Head-up (H-UP)
A display without azimuth stabilization in which the line connecting the center
with the top of the display indicates own ship’s heading. Targets are painted at
their measured distances and in their directions relative to own ship’s heading.
The short line on the bearing scale is the north marker.
Heading Line
North Marker
Head-up presentation mode
Course-up (C-UP)
The radar picture is stabilized and displayed with the currently selected course at
the top of the screen. As you change heading, the ship’s heading line moves. If
you select a new course, the picture resets to display the new course at the top
of the display.
Targets are painted at their measured distances and in their directions relative to
the intended course which is maintained at the 0-degree position. The heading
line moves in accordance with ship’s yawing and course changes.
Heading Line North Marker
Course-up presentation mode