Garmin GPS 155/165 TSO, Owner'S Manual

Page: 17 / 132

Section 1
Navigation Key
The GPS 155 features four navigation pages to provide various position, course,
speed and planning information. The navigation pages may viewed by pressing the
NAV key and rotating the outer knob, or pressing the
N
key repeatedly.
The CDI and Position pages are the primary pages used during in-flight naviga-
tion, while the two nav menu pages offer access to planning and calculation func-
tions. Note that rotating the outer knob clockwise will continuously cycle through
all the nav pages, while turning the knob counterclockwise stops the page selection
sequence at the CDI page.
Whenever the NAV key pages are in use, the indicator light (
U
) next to the NAV
key will illuminate. If the GPS 155 requires you to enter data on the Position page,
the message indicator will flash and a message prompt with specific instructions will
appear. If you leave the NAV page sequence for another set of pages, the last NAV
page displayed will appear when you return to the nav sequence.
7
NAV KEY
Overview
Remember! The NAV pages will only display information
AFTER the position and navigational information has been
calculated from the satellites. 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
helpful in speeding satellite acquisition if the unit has
moved a great distance with the power off.
If you are not sure whether the GPS is actively calculating
a position, check the receiver status field for ‘2D NAV’ or
‘3D NAV’ by pressing the SET key and rotating the outer
knob to the left. The current receiver status is displayed at
the top left of the page.
CDI Page
Position Page
NAV Menu 1 NAV Menu 2
155man (GOOD) 7/24/98 1:56 PM Page 7