Offsetting The Ppi Center; Vectors - Simrad R2009 User Manual

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True motion
In True motion your vessel and all moving targets move across the Radar PPI as you travel. All
stationary objects remain in a fixed position. When the vessel's symbol reaches 75% of the
PPI radius (A), the radar image is redrawn with the vessel symbol re-positioned (B) 180°
opposite the current heading bearing.
A
When True motion is selected, the True motion reset option is available from the menu. This
allows for manually resetting the radar image and vessel symbol to its starting position.
Note:
True motion is only available when the PPI is in either North Up or Course Up
orientation mode.

Offsetting the PPI center

You can set the antenna position origin to different location on the radar PPI. The options
described in the next sections are available.
Note:
Offsetting the PPI center is allowed only in Relative motion.
PPI center: Center
You return the antenna center to PPI center by using the Reset offset option in the View
menu.
Center
The Center option resets the antenna position to the center of the PPI.
Look ahead
The Look ahead option is used to maximize the view ahead of the vessel. When selected the
PPI center is placed at 70% of the radius of the PPI, 180° opposite the top of the display.
Note:
Look ahead is only available for Heading Up radar orientation.
Offset to cursor position
This option allows you to use the cursor for selecting the antenna center. When the option is
selected the PPI center is immediately moved to the cursor position.

Vectors

A target vector indicates the expected target movement within a defined time. The vectors
are computed by multiplying the target speed with the set time value.
Radar view options | R2009/R3016 User manual
PPI center: Look Ahead
B
PPI Center: Offset