What Is Marpa?; How Do I Set Up The Marpa Functions?; How Do I Acquire A Marpa Target?; How Do I View Details Of Marpa Targets? - Raymarine C-Series Operating Manual

What is around me?
Using MARPA....
Card No. 12

What is MARPA?

Mini Automatic Radar Plotting Aid (MARPA) functions are used for target tracking and risk analysis. MARPA
improves your standards of collision avoidance by obtaining detailed information for up to 10 targets, and
provides continuous and rapid situation evaluation.
MARPA tracks the selected targets and calculates target bearing, range, true speed, course, Closest Point of
Approach (CPA), and Time to Closest Point of Approach (TCPA). Each tracked target can be displayed with a
CPA graphic depicting the approximate target speed (vector length) and course (vector direction).
Alternatively, move the cursor over the target to display the range and CPA. You can now access bearing and
speed. Each target is continually assessed. An alarm sounds if a target becomes dangerous or lost.
NOTE: For MARPA to operate, fast heading data is required.

How do I set up the MARPA functions?

TARGET MARPA & AIS
TRACKING... OPTIONS...

How do I acquire a MARPA target?

Move cursor over
target to acquire
MARPA target symbols

How do I view details of MARPA targets?

TARGET
TRACKING...
How do I cancel MARPA target(s)?
?
More information.....
MONITOR
ACQUIRE TARGET
IN ZONES
TARGET
ACQUIRE TARGET
TRACKING...
Target being acquired
MARPA LIST...
Or:
CANCEL TARGET
See the 'Using the radar' chapter of the Reference Manual.
MARPA & AIS
MARPA LIST
OPTIONS
Highlight
Select
and select
value
The target is acquired -
this takes a few seconds
Safe target
MARPA LIST
True True
ID Bearing Range Course Speed CPA TCPA
312 o T 342 o T
2 1.739nm 9.9kt 1.739nm 00h00m00s
274 o T 335 o T
3 3.242nm 68.4kt 3.242nm 00h00m00s
086 o T 276 o T
4 1.305nm 9.4kt 1.305nm 00h00m00s
5 247 o T 1.774nm 321 o T 22.7kt 1.774nm 00h00m00s
Tracked targets with data listed.
MARPA LIST...
CANCEL TARGET
AIS LIST
OK
Repeat to
acquire further
targets
(10 max)
Dangerous target
CANCEL ALL
TARGETS