Garmin GTN 625Xi, Pilot'S Manual

Page: 445 / 534

Hazard Awareness
190-02327-03 Rev. C Pilot’s Guide 5-137
HTAWS Setup Selections
The HTAWS page menu provides options to acknowledge caution alerts, reduce
protection, or inhibit alerting.
View
Selects 360° or Arc view on the Terrain page.
Layers
Selects to display flight plan and/or legend on the
Terrain page.
RP Mode
•
Reduces the alerting thresholds, and suppresses visual
and aural annunciation of caution alerts
•
An external RP Mode switch and an external alert
acknowledge switch can be used
•
“RP Mode” displays in the terrain annunciator field
whenever protection is reduced
HTAWS Inhibit
When the ground speed is less than 30 knots HTAWS
automatically displays “HTAWS INHB” and cannot be removed
by menu option selection. Other features:
•
Inhibit mode deactivates aural and visual alerts
(Use discretion when inhibiting the HTAWS system and
remember to enable the system when appropriate)
•
VCOs are not inhibited in Inhibit mode
•
All FLTA aural and visual alerting suppressed
•
HTAWS should only be inhibited when in visual contact
with terrain and obstacles
•
HTAWS configured units will always start up with
HTAWS alerts uninhibited
Test HTAWS
Tests the HTAWS system. Available only when the rotorcraft is
on the ground.
An aural message communicates test results:
“HTAWS System Test, OK” if the system passes the test.
“HTAWS System Failure” if the system fails the test.