Garmin GNC 300XL TSO - Manual (Page 11)

The GARMIN GNC 300XL is a powerful navigational tool that provides pilots with accurate
navigational data and communication capability, along with along with non-precision approach
certification in the IFR environment. The Takeoff Tour is designed to familiarize you with the
operation of the GNC 300XL, including powering up the unit, changing frequencies, entering
data and performing a simple direct-to, and provide a limited introduction to the ‘Nearest’ func-
tions. In addition, this section also briefly covers the position, CDI, map and frequency pages
available from the NAV key. These pages will be used for most of your in-flight navigation.
The Takeoff Tour assumes that the GPSCOM TM and antennas have been properly
installed and you have not changed any of the GNC 300XL’s default settings. If you have
changed any of the factory default settings (position format, units of measure, selectable
fields, etc.), the pictures shown here may not match your configuration. Prior to using your
GNC 300XL for the first time, we recommend that you taxi to a location that is well away
from buildings and other aircraft so the unit can collect satellite data without interruption.
Powering up the GNC 300XL
The GNC 300XL’s power and volume are controlled using the B (power/volume)
knob at the bottom left of the unit. Rotating it clockwise will turn unit power on and
increase the radio volume. After turning the unit on, a welcome page will be displayed
while the unit performs a self test.
The database page will appear next, showing the current database information on the
NavData card, with the valid operating dates, cycle number and database type indicated. The
database is updated every 28 days, and must be current for approved approach and IFR opera-
tions. Information on database subscriptions is available inside your GNC 300XL package.
To acknowledge the database information:
1. Press the
E
key.
1
The database confirmation page shows the
effective and expiration dates of the Jeppesen
database on the NavData Card.
The welcome page appears when the GNC 300XL
is turned on. During the time this screen is
displayed, the GNC 300XL performs a self test to
ensure proper operation.
TAKEOFF TOUR
Power On
300xl manual 1/25/99 2:35 PM Page 1