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3-2 Raychart 320 Chartplotter
CAUTION:
The equipment should not be used as a substitute for good
navigational practice nor for official government paper charts.
3.2 Using Chart Cards
The chartplotter has a built-in world map; most areas are covered on a
scale of 6nm on the screen. 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 C-MAP NT electronic chart cards
(C-Cards), each of which can store as many as 20 charts in an electronic
format. A single C-MAP chart normally provides as much information as
is available in paper charts for that geographic area.
Two card slots are provided on the display unit. Chart data from both slots
can be up/downloaded.
At the top of the chart screen a status bar displays the scale in use - the
number represents the distance (in nautical miles) displayed from the top
to bottom of the screen.
Note: You can remove and insert cards while a chart is displayed. The
chart information is retained on-screen until the chartplotter redraws the
screen: for example, when you pan outside the current area, or use the
RANGE key to change the chart scale.
Inserting a Chart Card
➤ Refer to Figure 3-1:
1. Check that the card is a C-MAP NT C-Card with the required chart
stored in it.
2. Open the card cover, at the left of the display front panel.
3. Hold the card with the title label towards the left, as shown in
Figure 3-1.
4. Gently push the card into one of the two slots. It will only fit if it is the
correct way round. Push the card in as far as it will go, then move it to
the right so that the top is under the retaining pegs. The card will be
held in place by the pegs.
5. To prevent the ingress of water, close the card cover so that is clicks
shut.
81167_3.BOOK Page 2 Wednesday, November 21, 2001 2:12 PM