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Moving around the chart and changing chart scale, Finding your boat position, Selecting screen amplifier – Seiwa SW701i SW701e User Manual

Page 26: Selecting map orientation

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User Manual

Fig. 1.10h - Example of Gauges page

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The numbers of analogue instruments may be different.

Moving around the Chart and Changing Chart Scale

Use the cursor key to move around the chart. Also use [ZOOM IN] and [ZOOM

OUT] to change the chart scale so that a smaller or larger area is shown on the chart.

Now it is possible to change smoothly the zoom level avoiding the big jump between

levels.

Finding Your Boat Position

The most common use of the chart plotter is to show your ship's current location.

You can lock the cursor to the ship's position using:

[CLEAR]

The Home function locks the cursor to the ship and updates the display as the

ship moves. To release the cursor from the Home Mode, use the cursor key to

move the cursor away from the ship's current position.

Selecting Screen Amplifier

In Home mode the Screen Amplifier function sets up the charts on the navigation

direction (course) in order to display more map details in front of the ship’s position.

[CLEAR] + [MENU] + "Display Options" + [ENTER] + "Screen Amplifier" +

[ENTER] + "On" + [ENTER]

Selecting Map Orientation

To select the orientation of your chart according to:

[MENU] + "Map Options" + [ENTER] + "Map Orientation" + [ENTER]

The available choices are North Up (the map is shown with North upwards), Head

Up (the map is shown with the ship's current heading upwards) and Track Up (the

map is shown with the currently selected course leg upwards).

If Head Up or Track Up has been selected, the Resolution angle can be set:

[MENU] + "Map Options" + [ENTER] + "Map Orientation" + [ENTER] + "Head

Up" or "Track Up" + [ENTER] + use cursor to insert values + [ENTER]

The Resolution angle, which may be selected in the range [5 – 60] degrees,

defines the maximum variation of the reference angle after which the map changes

its orientation.