NorthStar Navigation EXPLORER 657 Basic Operation, Overview of the keys, Using the keys

2 Basic Operation

Overview of the keys

ESCAPE - Go back to an earlier menu or display. In chart mode, centres chart at boat’s position.

DISPLAY - Show a menu of the main displays. To go to a display, select it from the menu (see section 2-7).

CURSOR KEYS - to move the cursor or the selection highlight.

MENU - Show a menu of the options for the current window.

Press again to display the Setup menu (see section 17).

ENTER - Start an action or accept a change.

ZOOM - Chart window: Zoom in or out to display different areas and detail on the chart.

Sonar window: Change the depth range displayed.

FAVORITES - Allows you to quickly switch between your saved favorite displays.

MOB - (Man Overboard, see section 2-4).

POWER - Turn 657 on and off (see section 2-2); adjust the backlighting (see section 2-3).

2-1 Using the keys

In this manual:

Press means to push the key for less than a second.

Hold means to hold the key down.

The internal beeper beeps when a key is pressed (to disable or enable the beep, see section 17-1).

Using the menus

Operate the 657 by selecting items from menus. Items can be submenus, commands or data.

Selecting a submenu

A after a menu item indicates a submenu, for example Chart . Press or to move the

highlight to the submenu, then press .

Starting a command

Press or to move the highlight to the command, for example Goto cursor, then press .

10 Northstar Explorer 657 Installation and Operation Manual