Table 5-19 Terrain/Taws Setting; Table 5-20 Taws Airframe-Specific Configuration Data; Audio Alert Config; Terrain/Taws - Garmin GI 275 Installation Manual

5.6.3

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
volume audibility set in the previous step. Adjust the Alert Volume as desired to match audio levels of
other systems installed in the aircraft.
5.6.4

Terrain/TAWS

If the GI 275 system does not have TAWS B enabled, then configure the Terrain/TAWS for one of the
following options (Terrain-FLTA is automatically set if SVT is enabled):
Not Installed
Installed (MapMX)
Installed (Other)
Installed (HSDB)
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 5-20.

Table 5-20 TAWS Airframe-Specific Configuration Data

Selection
Required runway surface
Runway Surface
type
Runway Minimum runway length for
Min Length TAWS/Terrain Alerting
190-02246-14
Rev. 11

Table 5-19 Terrain/TAWS Setting

External TAWS
Description
Set the type of runway surface for which the aircraft is
authorized.
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).
icon on any/all annunciations to verify
Terrain Mode
Terrain-FLTA
Terrain-Proximity (Off)
External
Notes
GI 275 STC EIS & MFD Installation Manual
Page 5-31