Garmin GNC 300XL TSO - Manual (Page 21)

Section 1
Navigation Key
The GNC 300XL features seven navigation pages to provide various position,
course, speed, status and planning information. The pages may be viewed by pressing
the
N key and rotating the outer knob, or by pressing the N key repeatedly.
The CDI, map, NAVCOM and position pages are the primary pages used during
in-flight navigation, while the nav menu and status pages offer access to planning,
calculation and status functions. Note that rotating the outer knob clockwise will
continuously cycle through all the navigation pages, whereas turning the knob coun-
terclockwise will stop the page selection sequence at the CDI page.
Whenever the N key pages are in use, the indicator light (U) next to the N
key will illuminate. If the GNC 300XL requires you to enter data on a navigation
page, a message prompt with specific instructions will appear and the indicator will
flash. If you leave the NAV page sequence for another set of pages, the last NAV page
displayed will reappear when you return to the nav sequence.
11
SECTION
1
NAV KEY
Overview
Remember! The NAV pages will only display
information AFTER the position and navigational
information has been calculated from the satel-
lites. If you are on the position page before the unit
has calculated a position, you will be able to enter
an approximate position and altitude. This is help-
ful in speeding satellite acquisition if the unit has
moved a great distance with the power off.
If you are not sure the GPS is actively calculating
position, check the receiver status field for ‘2D
NAV’ or ‘3D NAV’ by pressing the
N key and
rotating the outer knob until the satellite status
page appears. The current receiver status is dis-
played at the top left of the page.
CDI page
NAV Menu 2 Position page
NAV Menu 1
Map page
Satellite status page
NAVCOM page
300xl manual 1/25/99 2:35 PM Page 11