Simrad R2009 User Manual page 24

• After 1 minute the symbol will show a trend vector, and speed and course of the trend will
be shown in the Target panel
• After 3 minutes the symbol will become steady, and all the data fields of selected targets
will be available. The target symbol will change to tracked radar target symbol
The above time references represent worst case situations. In a stable situation the radar
target information is available immediately.
Note:
The CPA/TCPA anti-collision functions will be enabled for tracked radar targets.
Radar target symbols
The following symbols are used for radar targets in the system:
Symbol Description
Tracked Radar target with velocity vector.
Selected Radar target, indicated with a square (dotted line)
around the target symbol.
Dangerous Radar target indicated with bold line and with red
color.The symbol flashes until the target alarm is acknowledged by
the operator. It remains red until the system no longer defines it as a
dangerous target.
Lost Radar target, indicated with crossed lines centered on the
target symbol. The symbol is located at the last received position
from the target.
Display settings for radar targets
You select how the radar targets are displayed on the radar image in the Trails and past
position sub menu.
The settings are indicated in the Indicators panel.
Trails and past position presentation mode
Trails and past position indicators can be displayed as either true or relative to own ship.
Trails and past position indicators are available in both Sea and Ground stabilization modes.
See "Selecting speed source and stabilization mode" on page 18.
Target trails
A target trail indicates the target movement by leaving an afterglow, gradually reducing the
intensity over time.
Target trails show where a target used to be, and the function is useful for quickly assessing
the movement of targets relative to your own vessel.
You can set the length of the trails. The length represents the time it takes for the trails to
fade out.
The Clear trails option clears target trails from your radar panel temporarily. The trails start
to build up again unless you switch the function off.
Target tracking | R2009/R3016 User manual 25