Lowrance HDS-7 LIVE HDS Live Operator Manual - Page 138
Radar symbology, Target trails, The radar palette, Radar orientation, Head-up, North up
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138 Radar symbology Radar symbology defined in the Radar Settings panel can be turned on/off collectively. See the radar panel illustration showing optional radar items. Target trails You can set how long the trails generated from each target on your radar panel remain. You can also turn OFF target trails. Ú Note: True motion is recommended when using Target trails Clearing target trails from the panel When target trails are displayed on the panel, the radar menu expands to include an option where you can clear target trails from your radar panel temporarily. The target trails start to appear again unless you switch them off as described above. The radar palette Different colors (palettes) can be used to represent detail on your radar panel. Radar orientation Radar orientation is indicated on the upper left corner of the radar panel as either HU (Heading UP), NU (North Up) or CU (Course up). Head-up In head-up mode, the heading line on the PPI is oriented on the 0° on the bearing scale and towards the top of the screen. The radar image is displayed relative to own ship, and when the ship turns the radar image rotates. Ú Note: Head-up is only available in relative motion mode, and it is the only orientation mode available if the radar is not connected to a heading source. North up In North up mode the 0° indication on the PPI represents north. The heading line on the PPI is oriented according to own ship heading obtained from the gyro compass. When the ship turns the heading line changes its direction according to the ship's heading, while the radar image remains stabilized. Radar| HDS Live Operator Manual