Garmin GTS 800 Pilot's Manual Addendum

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Garmin GTS 800 Pilot's Manual Addendum Manual pdf 7 page image

GTS 8XX INTeRfACe OVeRVIeWAll information in this addendum pertains to the display and control of the Garmin4XX/5XX Series units using a GTS 8XX interface. This addendum does not replace orsupercede the 4XX/5XX Pilot’s Guides. Refer to the 400/500 Series Display InterfacesPilot’s Guide Addendum (190-00140-10) when interfacing with non-Garminproducts1.0 SySTeM DeSCRIPTIONThe 4XX/5XX provides an optional display interface for the GTS 8XX TrafficAdvisory (TAS) and Traffic Collision Avoidance (TCAS I) Systems. The GTS 800and GTS 820 are TAS systems, the GTS 850 is a TSO-Certified TCAS I system. TheGTS 8XX uses active interrogations of Mode A/C/S (GTS 820 and GTS 850 only) andMode A/C transponders to provide Traffic Advisories to the 4XX/5XX.The GTS 8XX is an active traffic advisory system that operates as an aircraft-to-aircraft interrogation device. The GTS 8XX monitors the airspace surrounding anaircraft, and advises the flight crew where to look for transponder-equipped aircraft thatmay pose a collision threat. When the GTS 8XX receives replies to its interrrogations,it computes the responding aircraft’s range, bearing, relative altitude, and closure rate.The GTS 8XX then determines the advisory status of the target and sends the locationinformation and alert status to the 4XX/5XX for display.The GTS 800 is capable of tracking up to 45 Mode A/C/S intruders. TheGTS 820/850 is capable of tracking up to 45 Mode A/C plus 30 Mode S intruders. Upto 30 of the most threatening targets are displayed.Pilots should be aware of TAS/TCAS system limitations. If an intruder transponderdoes not respond to interrogations due to antenna shading or marginal transponderperformance, it will not be displayed, or display may be intermittent. Pilots shouldremain vigilant for traffic at all times when using TAS/TCAS systems for non-transponder equipped airplanes or unresponsive airplanes.1.1 TCAS I SURVeIllANCe VOlUMeTop and bottom mounted antennas allow an active surveillance range of up to12 nm (GTS 800) or 40 nm (GTS 820/850) in the forward direction, and somewhatreduced ranges to the sides and aft of own aircraft due to the directional interrogationpatterns. Interference limiting in GTS 820/850 units may automatically reduce rangein high density traffic areas.400/500 Pilot’s Guide Addendum for GTS 8XX Interface190-00140-78 Rev. A 1GTS 8XX Interface