2-8

RayChart 420/420D Chartplotter

 

 

Chart Boundary - Indicates further detail is available inside. Shown when using Navionics® Nav-Chart card.

128 nm

CSR 48°30.367'N

BRG

231°T

POS

1°35.636'W

RNG

40.91nm

EXETER

 

 

 

 

TOPSHAM

 

 

 

TEIGNMOUTH

 

 

 

 

 

EXMOUTH

 

 

 

ENPORT

TORQUAY

PORTLAND

ISLE O

PLYMOUTH

DARTMOUTH

HARBOUR

 

SALCOMBE

 

 

 

 

 

 

 

CAP DE

 

 

 

 

LA HAGUE

 

 

 

ALDERNEY

 

 

 

GUERNSEY

 

 

 

 

 

JERSEY

PORTB

 

 

 

 

 

FIND SHIP

ROUTES

WAYPOINTS

 

 

 

 

 

 

D4705_1

4.If no further chart detail is available then, when you press the bottom of the RANGE key, the result depends upon whether Plotter Mode is on or off :

If Plotter Mode is Off, the unit beeps three times and the chart scale remains unchanged, indicating the smallest chart scale is displayed.

If Plotter Mode is On, the scale is decreased. The vessel, waypoints, routes and tracklines are displayed without cartography.

The chart information is restored when you return to a chart scale for which the information is available.

To zoom out to a smaller-scale (less detailed) chart, press the top of the RANGE key as many times as required.

2.5 Using Navionics Nav-Chart cards

The chartplotter has a built-in world map that can be used for route planning. Most areas (these are shown with chart box boundaries) are covered at a range of approximately 64nm as shown on the Status Bar at the top of the screen. Note: To ensure maximum detail for the built-in world map, two versions are available covering the Americas and the Rest of the World.

To use the chartplotter as a navigation aid, charts with detailed information for the area you wish to navigate are required. The charts are available on Navionics Nav-Chart cards, each of which can store as many as 20 charts in an electronic format, depending upon its memory storage capacity.

A Nav-Chart card provides an appropriate level of detail for a given geographic area and scale; this data can be displayed down to a range of 1/8 nm on the screen (height) if the data is available.

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Image 27
Raymarine 420D manual Using Navionics Nav-Chart cards, 128 nm