1190-00587-02 Rev. E Garmin GTS Trafflc SystemsContentsSection 1 System Description .......................................................................3Section 2 General Theory of Operation ........................................................32.1 Active Surveillance..................................................................................... 32.2 ADS-B IN................................................................................................... 4Section 3 System Specifications ...................................................................7Section 4 System Components .....................................................................84.1 System Processor....................................................................................... 84.1.1 GTS 800/820/850 System Processors ............................................... 84.1.2 GTS 825/855 System Processor ....................................................... 84.2 Antennas .................................................................................................. 94.2.1 Directional Antennas ..................................................................... 104.2.2 Omni-Directional Antenna ............................................................. 114.3 External Amplifier .................................................................................... 114.3.1 GPA 65 Amplifier Module (GTS 820 & 850 only) ............................ 11Section 5 System Interfaces .......................................................................125.1 Altitude Source ........................................................................................ 125.2 Transponder Interface .............................................................................. 125.3 Traffic Display .......................................................................................... 125.4 Audio System .......................................................................................... 125.5 Landing Gear Position ............................................................................. 135.6 Radar Altimeter ....................................................................................... 135.7 GPS ........................................................................................................ 135.8 Magnetic Heading ................................................................................... 135.9 Air/Ground Switch ................................................................................... 135.10 Control Switches ................................................................................... 13Section 6 System Operation .......................................................................146.1 Operating Modes .................................................................................... 146.1.1 Control of Modes .......................................................................... 146.2 Traffic Information ................................................................................... 156.2.1 No-Bearing TAs ............................................................................. 166.3 ADS-B In Applications - SURF, AIRB .......................................................... 186.4 Traffic Alerting ......................................................................................... 196.4.1 TAS/TCAS I Alerting ....................................................................... 19