Use and Care Manual

179
MARPA
MARPA TARGETS
U
se MARPA to track targets on the Radar View. A compass/heading sensor must be attached to the control head network to enable
M
ARPA, and the radar must be transmitting (see Radar Overview). If an AIS is connected, then AIS targets will also be displayed on
t
he Radar View. See AIS and MARPA for more information.
The control head tracks up to 20 targets at one time. Each target is assigned a number (1 to 20) and an icon to represent its safety
status. The possible target status is as follows:
Turn on MARPA Tracking
The radar must be transmitting so you can track targets. MARPA targets can be tracked in the Radar View or Chart View.
NOTE: The Radar Transmission Range also influences the number of acquired targets. If the Transmission Range is set too low,
you may lose some target information. See Radar Overview for more information.
Track a Target
1. Press and hold a a radar return. Select Track MARPA to acquire the target.
OR
Use the Joystick to move the cursor to a radar return. Press the Joystick to acquire the target.
Icon Status Description
Acquiring
The control head is processing the target data. The target has been
identified but not yet tracked.
Dangerous
The target is being tracked and has entered the Safe Zone or the
Guard Zone.
Lost
The target is not available for tracking. A target may be lost if it has
not been scanned in the last 30 seconds. The target will be displayed
with its last available position on the view.
Safe
The target is being tracked and has not crossed the Safe Zone or
Guard Zone.