Garmin GPS 500W Addendum au manuel du pilote - Page 38

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Part Three: Section 2

TAWS Operation

TERRAIN configured units will restore the "inhibit

state" at startup to the last pilot-selected setting. TAWS

configured units will always start up with TAWS alerts

uninhibited.

Inhibiting Terrain

To inhibit PDA and FLTA alerts:

Select the TAWS Page and press MENU.

"Inhibit Terrain?" is selected by default.

Press ENT. The PDA/FLTA alerts are inhibited.

The

the terrain annunciator field whenever terrain

is inhibited.

To enable PDA and FLTA alerts:

Select the TAWS Page and press MENU.

"Enable Terrain?" is selected by default.

Press ENT. The PDA/FLTA alerts are functional

again.

annunciation is displayed in

190-00356-30 Rev C

External TAWS Inhibit Control

An optional installation is allowed for providing

an external TAWS Inhibit switch. Pressing the external

TAWS Inhibit switch toggles the TAWS inhibit on and

off in the same manner as using the Page Menu selec-

tion.

Garmin TAWS provides a manual test capability

which verifies the proper operation of the aural and

visual annunciations of the system prior to a flight.

"Test Terrain" selection

To manually test the TAWS system:

Select the TAWS Page and press MENU.

Select the "Test Terrain?" option.

Press ENT to confirm the selection.

An aural message is played giving the test results:

• "TAWS System Test, OK" if the system passes the

test

• "TAWS System Failure" if the system fail the test

NOTE: TAWS System Testing is disabled when

ground speed exceeds 30 knots so as not to

impede TAWS alerting.