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Part Six
GTS 800 Interface
Part Six:
Garmin GTS 8XX Series
Interface
Introduction
The Garmin GTS 8XX Series unit is a Traffic Advisory
System (TAS - GTS 800 and GTS 820) or Traffic Alert and
Collision Avoidance System (TCAS I - GTS 850). The GTS
8XX Series enhances flight crew situational awareness by
displaying traffic information for transponder-equipped
aircraft. The GTS 8XX Series also provides visual and aural
traffic alerts including voice announcements to assist in
visually acquiring traffic. The GTS 800 and GTS 820 are
TAS systems, the GTS 850 is a TSO-approved TCAS I
system. The GTS 8XX uses active interrogations of Mode
A/C/S transponders to provide Traffic Advisories.
The Standby Screen appears when the
GTS 8XX series passes the power-up test.
NOTE: when the system is in standby, the
GTS 8XX series does not transmit, interro-
gate, or track intruders aircraft.
GTS 8XX Series Description
Please refer to the GTS 8XX Series Pilot’s Guide for
a complete description of the GTS 8XX Series Traffic
system.
Traffic Page showing GTS 8XX series traffic
near the 40 NM mile range, at
10 o’clock above.
Power-up Self-Test
Check for the following test criteria on the Traffic
Page during power-up:
1. If the GTS 8XX series unit passes the power-up
test and your aircraft has both a squat switch
and is on the ground, the Standby Screen is
displayed (see sidebar).
2. If the GTS 8XX series unit passes the power-up
test and your aircraft has both a squat switch
and is airborne, the Traffic Page is displayed
on the 6-NM display range and in the normal
altitude display mode.
3. If the GTS 8XX series unit passes the power-up
test and your aircraft does not have a squat
switch, the Standby Screen is displayed.
4. If the display indicates that the GTS 8XX series
unit has failed, please refer to the failure
response section in the GTS 8XX Series Pilot’s
Guide on actions to take.
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