Radar Orientation - Lowrance HDS Gen2 Touch Operator's Manual

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STC curve
The STC (Sensitivity Time Control) controls the sensitivity of the radar
signal close to your vessel. Your selection should be based on the
current sea conditions.
¼ Note:
When a 4G broadband radar is installed, beam sharpening is
enabled, resulting in 2X the azimuth resolution — similar to a three-
foot length array.
Target trails
Turns on/off shaded echoes of each radar target making it easier to
assess the movement of targets relative to your position.
Clearing target trails from the panel
When target trails are displayed on the panel, the radar menu will
be expanded to include an option where you can clear target trails
from your radar panel temporarily. The target trails will start to
appear again unless you switch them off as described above.
Palette
Different colors (palettes) can be used to represent detail on your
radar panel. You can select palettes from the Radar settings menu.

Radar orientation

Radar orientation is indicated on the upper left corner of the radar
panel as either HU (Heading UP), NO (North Up) or CU (Course up).
Heading up
Rotates the radar image to display the current heading directly up
on the radar image.
North up
Rotates the radar image so North is always at the top of the screen.
¼ Note:
You must have a heading sensor connected to your system to
use North up mode.
Course up
Rotates the radar image to display the current navigation course
directly up. This option works only when the unit is navigating an
active route. If you are not navigating an active route the heading
up orientation will be used until the navigation function is started.
Radar | Lowrance HDS Gen2 Touch