Humminbird 858c Combo, Installation And Operation Manual

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74 Viewing Cartography
View Orientation
Both Chart and Combo Views allow you to choose the orientation of the
view (see Navigation Menu Tab: Chart Orientation ). In both orientations,
the view pans automatically so that the boat is always centered on the
display.
• North-Up: True North is shown at the top of the display. Objects
located to the north of the boat are drawn above the boat.
• Course-Up : The direction of motion of the boat is shown at the top
of the display. Objects ahead of the boat are drawn above the boat.
When the boat is stationary, it is drawn as a circle.
When the boat is in motion, it takes on a boat shape, pointed in
the direction of motion (always Up in the Course-Up orientation).
Viewing Cartography
In the Chart and Combo Views , there are several cartography-related functions
that you can access using various keys.
Panning: Use the 4-WAY Cursor Control key to move the chart around on the
display in the direction of the key being pressed. When you do this, a bull's
eye cursor is drawn at the center of the screen and is linked to the boat by
a gray line, even if the boat is off the screen. At the same time, a cursor
dialog box is displayed at the top of the screen with the distance and bearing
from the boat to the cursor position and the latitude/longitude coordinates
of the cursor. When the cursor is active on the display, you can also use the
4-WAY Cursor Control key to move the cursor diagonally.
Chart View with Cursor Present