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Garmin GTX 335 Series Manual do Piloto
4.2.2

No Source of Heading Data

Due to helicopter maneuverability, ground track may not correspond to heading at low
speeds. Limitations apply to GTX 345 installations with no source of heading data
provided.
ADS-B traffic will not display when operating at less than 15 knots groundspeed. Aural
traffic alerts will issue, appropriately. If a TAS/TCAS is interfaced to the GTX 345 then:
• TAS/TCAS traffic targets will continuously display at all speeds.
• If in excess of 15 knots in backward or sideway flight, TAS/TCAS and ADS-B
targets may not correlate. Two targets may appear on the display for each
actual target being received over both ADS-B and TAS/TCAS.

4.3 TCAD/TAS/TCAS I GTX 345 Integration

To optimize situational awareness the GTX 345 correlates TCAD/TAS/TCAS with
ADS-B In traffic, combining data from all sources. This creates the most accurate and
comprehensive traffic picture. When a correlation is made the most relevant target is
displayed. There are no duplicates. Any active traffic system, or ADS-B traffic that is not
correlated, will also display.
When a GTX 3X5 and TAS/TCAS system integrate, the GTX 3X5 controls the operating
mode of the TAS/TCAS system. It does this by using both its own air/ground logic and the
available mode controls from the interfaced display. The GTX 345 provides all traffic aural
alerts.
190-01499-00 Rev. C
GTX 335/345 Pilot's Guide
GTX 3X5 XPDR
1 – GTX 3X5 SERIES XPDR
4-3