Raymarine What is MARPA? A Comprehensive Guide to MARPA Functions in Marine RADAR

 Page 16

What is around me?

Using MARPA....

Card 15

What is MARPA?

MONITOR IN ZONES

ACQUIRE TARGET

MARPA & AIS

OPTIONS

MARPA LIST

AIS LIST

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

OK

TRACKING...

OPTIONS...

 

 

Highlight

Select value

 

and select

from list

How do I acquire a MARPA target?

TARGET

TRACKING...

Move cursor over target to acquire

ACQUIRE TARGET

 

Repeat to

 

acquire further

1800T

targets

2.3kt

(10 max)

 

The target is acquired -

 

this takes a few seconds

 

MARPA target symbols

 

 

 

 

 

Target being acquired

Safe target

Dangerous target

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

How do I view details of MARPA targets?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MARPA LIST

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

True

True

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ID

Bearing

Range

Course

Speed

CPA

TCPA

 

 

 

 

 

 

 

 

 

2

312oT

1.739nm

342oT

9.9kt

1.739nm

00h00m00s

TARGET

 

 

 

 

 

 

 

 

 

 

 

3

274oT

3.242nm

335oT

68.4kt

3.242nm

00h00m00s

 

 

 

 

 

MARPA LIST...

 

 

 

 

 

4

086oT

1.305nm

276oT

9.4kt

1.305nm

00h00m00s

TRACKING...

 

 

 

 

 

 

 

5

247oT

1.774nm

321oT

22.7kt

1.774nm

00h00m00s

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tracked targets with data listed.

How do I cancel MARPA target(s)?

 

 

 

 

CANCEL ALL

 

 

CANCEL TARGET

Or:

TARGETS

 

 

MARPA LIST...

 

 

 

 

 

CANCEL TARGET

 

?

More information...

See the 'Using the radar' chapter of the Reference Manual.

4

 

 

 

 

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Contents
What is around me? Where am I going?General Operation What can I see?Control panel General OperationAlways keep a proper look-out Using the controls How do the controls work?Example Cursor appears on the screen as a white crossSetting up the display How do I select how the applications are displayed?How do I select the Page Set? How do I select a Page?With the unit powered Understanding the chart What can I use the chart for?How do I move around the chart? How do I find where I am on the chart?Using the chart Viewing detail on the chartHow do I change the chart orientation? How do I change how my boat moves on the chart?Finding nearby features and services Displaying port servicesDisplaying additional information Viewing object informationHow do I display pilot book information? How do I display a panoramic photo?How do I display aerial photo overlay? Understanding the 3D chart What can I use the 3D chart for?How do I move around the 3D chart? Changing the view on the 3D chartUsing the 3D chart How do I find where I am on the 3D chart?Synchronize 3D chart with 2D chart How do I change the motion mode?Basic Navigation Working with WaypointsHow do I build a route by placing waypoints on screen? What is a route?How do I follow a route? Understanding the radar What is around me?What does the radar show me? How do I set up a circular guard zone? Avoiding a collisionHow can the radar help me avoid a collision? What does a guard zone display?Using Marpa Using AIS On course 0ff courseUnderstanding the fishfinder Whats under the boat?What can I see on the screen? How do I interpret the bottom?Using the fishfinder How do I change Presets?Whats under the boat? How do I change the range or shift the image?Engine monitor application enables you to Monitoring data and engines Viewing video imagesHow do I monitor data? How do I monitor the engines?Navtex and Sirius Weather Data NavtexSirius Weather application USA only Highlight and select Navtex messagesWeather symbols USA only Storm Tracks symbolsWind speed symbols knots Sirius Weather DataUsing the Autopilot controls What are the Autopilot symbols?Autopilot Operation How do I disengage the Autopilot in an emergency?How do I change the radar gain settings? Understanding the digital radarWhat do the digital radar colors show me? Change value to suitHow is the network controlled? What does a networked system do?How do I change the master display?