JRC JMA-1030 Series, Инструкция по эксплуатации

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Chapter 5 VARIOUS FUNCTION ICONS
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5.14 MOTION MODE
Motion: Switches between true and relative motion display modes. The bearing signal input is required to
display true motion.
In the true motion display mode, the own ship’s position on the radar screen moves depending on its speed
and course and the influence of the current. Land and other fixed targets are fixed on the radar screen and
only actually moving targets move on the radar screen.
Bearing mode: Selects the azimuth of the radar video.
The bearing signal input is required to display NUP/CUP.
HUP mode is displayed so that the ship’s heading line points to the zenith of the PPI. Since targets are
displayed in their direction relative to the ship’s heading line, the operator can view the video in the same field
of view as in operating the ship at sea. This mode is suitable for watching over other ships.
NUP mode is displayed so that the zenith of the PPI points to the due north. Fixed targets do no flicker and
are easily identified on the chart, and the true bearing of a target can easily be read out.
CUP mode is fixed pointing to the zenith of the PPI points to the due north. In the same way as in the NUP
mode, fixed targets do not flicker, and are stabilized even if the ship is yawing. The bearing of the heading
line varies by the same shift of own ship’s course.