Figure 3-13 Terrain Configuration Page - Garmin GTN Xi Series Maintenance Manual

3.2.4.1 Terrain
NOTE
When the Terrain Alerting feature is enabled, the GTN Xi will provide a subset of the
TAWS B functionality that does not meet the requirements of TSO-C151c.
When the optional TAWS feature is enabled, the GTN Xi will provide Class B TAWS functionality. This
section describes how to reactivate the TAWS feature.
1. Power off the GTN Xi by opening the NAV/
GPS circuit breaker.
2. Remove the database SD card from the data
card slot and insert the TAWS Enablement Card
(P/N 010-00878-01).
3. Power on the GTN Xi in Configuration mode
by applying power (i.e., closing the circuit
breaker) to the GTN Xi while holding the
HOME key.
4. Navigate to the Terrain Configuration page
from the GTN Options page. Touch the
TAWS B key.
5. When the TAWS feature is activated, the
TAWS B key will be lit green, as shown in
Figure 3-13.
3.2.4.1.1 TAWS-B Configuration Options
When TAWS B is enabled, as shown in Figure 3-13, the
following configuration settings may be accessed.
Audio Clips
Selects aural alert messages for various caution and warning types.
Alert Settings
The GTN Xi TAWS alerting algorithm adapts the terrain alerting criteria based on nearby airports. The
Alert Settings configuration options selects the minimum criteria that the airport must meet to be
considered as a nearby airport for the purpose of TAWS alerting. Refer to Section 7.4.1 for additional
details.
190-01007-C1
Rev. 1

Figure 3-13 Terrain Configuration Page

GTN Xi Part 23 AML STC Maintenance Manual
Page 3-15