NorthStar Multi-Function Unit M121 Installation And Operation Manual page 19

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 2-7) the M121/M84
displays an appropriate data header for the
window.
Each favorite display (see section 2-7-2) has
its own data header. When you press
to recall a favorite display, the M121/M84
recalls the favorite displays data header.
Setting the data header for a display
1 Press and select Data header.
DISPLAY
2 To turn the data header on or off:
i Select Data.
ii Select or .
3 To select the size of the data:
i Select Size.
ii Select the size to display.
4 To change the data displayed:
i Select Data setup.
ii Change a data field:
a Press the cursor keys to highlight
the field.
b Press
ENTER
of data items.
c Select a data item that is available
on your system or select None to
leave the field empty.
iii Repeat the above step to set the other
data fields.
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to display a menu
Northstar M121/M84 Installation and Operation Manual
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.
5 Press .
ESC
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
2-7-2 - 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 260°M and COG is 321°M.
To turn the compass off or on:
1 Press and select Data header.
MENU
2 Set Compass to or .