Garmin GTX 335 Pilot's Manual - Page 23

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4 ADS-B IN TRAFFIC (GTX 345 ONLY)

NOTE

Inherent inaccuracies exist in TIS-B and TAS/TCAS traffic position data.

Because of this the GTX 345 may at times be unable to correlate targets from

multiple sources for the same aircraft. When this occurs, a single aircraft is

tracked and displayed as two co-located targets.

ADS-B Data transmitted directly from other aircraft.

ADS-R Ground station rebroadcast of ADS-B data after data link translation (UAT to 1090 MHz or

1090 MHz to UAT). This function aids aircrafts only operating one frequency.

TIS-B

Ground station broadcast of secondary surveillance radar (SSR) derived traffic.

The GTX 345 receives ADS-B traffic data (ADS-B, ADS-R, TIS-B) through the UAT

(978 MHz) and the 1090 MHz receivers. The GTX 345 may also receive traffic data

from configured TAS/TCAS/TCAD. Traffic data is received, processed, and outputted to

a connected display without pilot interaction.

Traffic data may also be displayed on a PED (e.g., tablet) via the built-in Bluetooth

interface or connected Flight Stream 110/210.

4.1

To enhance situational awareness, the GTX 345 is equipped with traffic alerting on

ADS-B, ADS-R, and TIS-B targets. An aural message is issued when an alert becomes

active.

For example, "Traffic! Two O'clock, Low, Two Miles."

To minimize nuisance alerts, the traffic alerting sensitivity adapts based on altitude

above ground level. No aural alerts are given below 500 feet.

190-01499-00 Rev. A

Garmin GTX 335/345 Pilot's Guide

ADS-B In

4 – ADS-B IN

4-1