Garmin G1000 Reference Manual page 40

GPS Navigation
Altitudes associated with arrival procedures are "manually-designated". This
means the system will not use the altitudes loaded with the arrival for giving vertical
flight path guidance until designated to do so by the pilot. Note that these altitudes
are initially displayed as white text. These altitudes may be "designated" by placing
the cursor over the desired altitude and pressing the ENT Key. After designation, the
text changes to cyan.
Altitudes that have been designated for use in vertical navigation may also be
made "non-designated" by placing the cursor over the desired altitude and pressing
the CLR Key. The altitude is now displayed only as a reference. It will not be used
to give vertical flight path guidance. Other displayed altitudes may change due to
re-calculations or rendered invalid as a result of manually changing an altitude to a
non-designated altitude.
Large Text Altitude calculated by
the system estimating
the altitude of the
aircraft as it passes
over the navigation
point. This altitude
is provided as a
reference and is not
designated to be used
in determining vertical
flight path guidance.
Small Text Altitude is not
designated to be used
in determining vertical
flight path guidance.
Altitude has been
retrieved from the
navigation database
and is provided as a
reference.
22
Garmin G1000 Cockpit Reference Guide for the Piper PA-46 Meridian
White Text Cyan Text
Altitude has been
entered by the pilot.
Altitude is designated
for use in giving
vertical flight path
guidance. Altitude
does not match the
published altitude in
navigation database or
no published altitude
exists.
Altitude is designated
for use in giving vertical
flight path guidance.
Altitude has been
retrieved from the
navigation database
or has been entered by
the pilot and matches
a published altitude
in the navigation
database.
Cyan Subdued
Text
The system cannot
use this altitude in
determining vertical
flight path guidance.
The system cannot
use this altitude in
determining vertical
flight path guidance.
190-01842-00 Rev. A