Garmin GTS 8000- Manuals

3 190-00587-02 Rev. B Garmin GTS Traffic Systems SYSTEM DESCRIPTION Garmin GTS Traffic Systems are a family of Traffic Advisory Systems (TAS) and Traffic Alert and Collision Avoidance Systems (TCAS). The systems feature both active interrogation of aircraft transponders and passive surveillance of 1...

4 Garmin GTS Traffic Systems 190-00587-02 Rev. B Passive Surveillance GTS Traffic Systems can optionally utilize passive surveillance information from an internal ADS-B receiver. The ADS-B receiver uses 1090ES broadcasts from other aircraft that are equipped with 1090ES ADS-B Out. These broadcasts a...

5 190-00587-02 Rev. B Garmin GTS Traffic Systems System Components System Processor Each GTS Traffic System includes a system processor. The system processor connects to all of the required and optional antennas, displays, controls, and aircraft interfaces. Figure 1 GTS System Processor GTS 800/820/...

6 Garmin GTS Traffic Systems 190-00587-02 Rev. B Antennas The GTS Traffic Systems use one or two dedicated externally-mounted antennas to transmit transponder interrogations to other aircraft. The same antenna or antennas are used to receive transponder replies and ADS-B broadcasts from other aircra...

7 190-00587-02 Rev. B Garmin GTS Traffic Systems Sensor Systems Low-Profile Antenna Sensor Systems antennas are low-profile directional antennas that may be installed on the top and/or bottom of the aircraft. Figure 3 Sensor Systems Low-Profile Directional Antenna Omni-Directional Antenna Numerous o...

8 Garmin GTS Traffic Systems 190-00587-02 Rev. B External Amplifier GPA 65 Amplifier Module (GTS 820 & 850 only) The GPA 65 is a combined Power Amplifier and Low Noise Amplifier that is required for use with the GTS 820 and GTS 850 systems only. Figure 5 GPA 65 PA/LNA Module

9 190-00587-02 Rev. B Garmin GTS Traffic Systems System Interfaces The GTS Traffic System includes interfaces to various required and optional aircraft systems. Altitude Source At least one pressure altitude source is required for system operation. The pressure altitude source is compared to the pre...

10 Garmin GTS Traffic Systems 190-00587-02 Rev. B Landing Gear Position Landing gear position for retractable gear aircraft is interfaced to the GTS system. Landing gear position may be used to mute traffic advisory audio, adjust the sensitivity of traffic alerts, or compensate a bottom directional ...

11 190-00587-02 Rev. B Garmin GTS Traffic Systems SYSTEM OPERATION Operating Modes The system typically powers up in Standby mode. In Standby mode, the system is powered on, but no traffic surveillance functions are performed. Operate mode is the normal mode for operations. All active and passive tr...

12 Garmin GTS Traffic Systems 190-00587-02 Rev. B Intruder Altitude and Vertical Trend Figure 6 Example Traffic Display NOTE : Always refer to the traffic display documentation for details on how traffic information is depicted on each display. Other Traffic (OT) Other Traffic (OT) targets are typic...

13 190-00587-02 Rev. B Garmin GTS Traffic Systems choosing the sensitivity level is based on available system inputs. If none of the inputs described below are available, the system will always remain in the most sensitive level, SL B. Radar Altimeter If the aircraft is equipped with a radar altimet...

14 Garmin GTS Traffic Systems 190-00587-02 Rev. B Sensitivity Level Intruder Altitude Available TA Alerting Conditions A Yes Intruder closing rate provides less than 20 seconds of vertical and horizontal separation. Or: Intruder closing rate provides less than 20 seconds of horizontal separation and...

15 190-00587-02 Rev. B Garmin GTS Traffic Systems No-Bearing TA Traffic Annunciation Figure 7 No-Bearing TA Off-Scale TAs If a TA is beyond the currently-selected traffic display range, it is typically shown with a half-circle icon at the edge of the display range. Refer to the traffic display docum...

16 Garmin GTS Traffic Systems 190-00587-02 Rev. B TA Aural Muting TA aural alerts may be muted or canceled under some circumstances. Muting or canceling of the TA aural alert does not affect the visual display of the TA. Radar Altimeter If the aircraft is equipped with a radar altimeter, all TA aura...

17 190-00587-02 Rev. B Garmin GTS Traffic Systems Automatic Mode Switching The system can automatically switch between Operate and Standby modes based on whether the ownship is in the air or on the ground. The system will automatically select Operate mode 8 seconds after becoming airborne. Standby m...

18 Garmin GTS Traffic Systems 190-00587-02 Rev. B Ground Traffic Filtering To reduce nuisance alerts and reduce traffic display clutter, traffic that is on or near the ground may not be shown on the traffic display or generate traffic alerts. There are several methods used for filtering out ground t...

19 190-00587-02 Rev. B Garmin GTS Traffic Systems NOTE : The ADS-B receiver is a 1090ES receiver and cannot receive 978 MHz UAT broadcasts. Air-to-air broadcasts from other aircraft equipped with 1090ES ADS-B Out are used for traffic correlation. Traffic or weather uplinks from ADS-B ground stations...

20 Garmin GTS Traffic Systems 190-00587-02 Rev. B Self-Test NOTE : Traffic surveillance is not available during the self-test. The self-test mode is used to verify that the system is functioning normally. Self-test must be manually initiated from the Standby mode and takes approximately ten seconds ...

21 190-00587-02 Rev. B Garmin GTS Traffic Systems Q AND A What are the benefits of ADS-B? 1090 MHz Extended Squitter ADS-B data contains additional information about a target aircraft including flight ID, latitude, longitude, barometric and geometric altitude, velocity, and direction. This provides ...

22 Garmin GTS Traffic Systems 190-00587-02 Rev. B What kind of transponder is required for use with the GTS Traffic System? All installations except the GTS 800 require the use of a compatible Mode S transponder. The transponder provides an indication of how many other TCAS-equipped aircraft are nea...

23 190-00587-02 Rev. B Garmin GTS Traffic Systems GLOSSARY Active Surveillance: Tracking of traffic targets using aircraft transpondersADS-B: Automatic Dependent Surveillance – Broadcast ATCRBS: Air Traffic Control Radio Beacon Service - A surveillance system that uses active interrogations and Mode...