2-7-3 Data header
The displays can show data at the top, called the data header.
When you select a window from the display menu (see section
Each favorite display (see section 
to recall a favorite display, the 657 recalls the favorite displays data header.
Setting the data header for a display
1Press 
and select Data header.
2To turn the data header on or off:
i Select Data. ii Select 
or 
.
3To select the size of the data: i Select Size.
iiSelect the size to display.
4 To change the data displayed: i Select Data setup.
iiChange a data field:
a Press the cursor keys to highlight the field.
b Press 
to display a menu of data items.
c Select a data item that is available on your system or select None to leave the field empty.
iiiRepeat the above step to set the other data fields.
Tip: If all fields in a line are None then the line will not be displayed and the data header will take less space on the display.
5Press 
.
Tip: The data header will change when you select another display. To set a data header that you can recall later, set the header as part of a favorites display (see below).
Favorites displays and data headers
To set a data header for a favorites display, follow the steps to add a favorite (see section
-Adding a favorite display to the list). In step 1, set the data header for the favorite as described above.
2-7-4 Compass
The chart, sonar and highway displays can show a compass at the top of the window.
The compass always shows the boat’s course over ground (COG), a black symbol in the middle. When the boat is navigating to a point, the compass also shows bearing to the destination (BRG), a red symbol.
In this example, BRG is 332°M and COG is 341°M.
To turn the compass off or on:
1Press 
and select Data header.
2 Set Compass to 
or 
.
18 | Northstar Explorer 657 Installation and Operation Manual |
