How Do I Set Up Marpa - Raymarine C-Series Reference Manual

Chapter 5: Using the Radar
your boat's vector at the point of the CPA. The length and direction of the arrow
indicate the distance and bearing of the target at CPA. The text indicates CPA and
TCPA. The text next to the target symbol indicates its course and speed.
Relative mode
With the graphic set in Relative mode, no vector extension is shown. The CPA arrow
emerges from your own boat, with the target vector extension being shown as relative,
not true. The text next to the target indicates its course and speed.

How do I set up MARPA?

TARGET
TRACKING
1. Press TARGET TRACKING. The MARPA soft keys are displayed.
2. Press MARPA OPTIONS. The MARPA Options menu is now displayed.
3. Use the trackpad or the rotary control, to highlight the required parameter.
4. Use the trackpad to set the parameter to the required level.
The options menu allows you to set up the following parameters:
Parameter
Vector Length
The time period specified for drawing vectors
Target History
Plots a target's previous position at specified intervals.
The four most recent position points are displayed. If True
target vectors are selected, the four most recent vessel
position points are also displayed
Own vessel safe zone
The safe zone is a ring, centered on your boat, within
which a target is considered dangerous.
Time to safe zone
The time within which a target is considered dangerous.
Safe zone ring
Controls whether the safe zone ring is displayed or hidden
on screen
MARPA OPTIONS
Options
(Default in bold)
0.5min, 1 min, 3 min, 6min, 12min, 30
min, 60 min
OFF, 0.5 min, 1 min, 3 min, 6 min
0.1 nm, 0.2nm, 0.5nm, 1.0 nm, 2.0nm
3 mins, 6 mins, 12 mins, 24 mins
Visible
Hidden
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