Garmin GI 275 User Manual

190-02246-10 GI 275 Part 23 AML STC Installation Manual
Rev. 11 Page 5-53
5.5.5 Audio Alert Config
Audio Out
This determines which GI 275 unit will produce audio. Must be set to the unit with Terrain Alerting
enabled, if applicable. The default is GI 1.
Voice Type
This makes the selection between Male and Female voices for alerts. The default is Female.
Alert Volume
This sets the audio level. Audio alerts must be loud, attention-getting, and clearly intelligible under all
cockpit noise conditions. Audio alerts should be set slightly louder than the normal volume of COM and
intercom transmissions. The default is 50%.
Audio Test
This allows the testing of associated audio clips. Touch the icon on any/all annunciations to verify
volume audibility set in the previous step. Adjust the Alert Volume as desired to match audio levels of
other systems installed in the aircraft.
5.5.6 Terrain/TAWS
If the GI 275 system does not have TAWS B enabled, then configure the Terrain/TAWS per Table 5-51.
When SVT is enabled, the GI 275 must have Terrain-FLTA configured. If the aircraft has multiple systems
capable of Terrain Alerting, such as a GTN Xi or GNS 5XXW, only one system can be set to generate the
Terrain Alert. Set Terrain Mode to Terrain-FLTA and set External TAWS to Installed (HSDB) for a GTN
6XX/7XX or GTN Xi interface or Installed (MapMx) for a GNS 4XXW/5XXW interface.
Table 5-51 Terrain/TAWS Setting
The GI 275 is capable of producing aural and visual TAWS alerts. The alerting algorithm relaxes the
terrain alerting criteria at nearby airports. An airport is considered to be a “nearby airport” if the runways at
the airport meet certain criteria. Select the runway Surface Type and Minimum Length for the aircraft, as
described in Table 5-52.
Table 5-52 TAWS Airframe-Specific Configuration Data
External TAWS Terrain Mode
Not Installed
Terrain-FLTA
Terrain-Proximity (Off)
Installed (MapMX)
ExternalInstalled (Other)
Installed (HSDB)
Selection Description Notes
Runway Surface
Required runway surface
type
Set the type of runway surface for which the aircraft is
authorized.
Runway
Min Length
Minimum runway length for
TAWS/Terrain Alerting
Set the shortest distance required for takeoff and
landing (typically the distance given for sea level using
the coldest temperature given in the POH/AFM).

Garmin GI 275 Specifications

General

Brand	Garmin
Model	GI 275
Category	Avionics Display
Language	English