Garmin GTS 820 Pilot's Manual

Also see for GTS 8000: Replacing

Contents

Garmin GTS 820 Pilot's Manual Manual pdf 10 page image

6 Garmin GTS 8XX Series Traffic Advisory System 190-00587-02 Rev. AGTS 8XX Series Antenna Configurations• Top only directional antenna.• Top directional with bottom monopole antennas (recommended for fixedgear aircraft) provides improved intruder visibility. The type of antenna usedwill be primarily limited by the amount of space available on the bottomof the airplane. Any aircraft that can utilize the directional antenna on thebottom would benefit from its use.• Top directional with bottom directional antennas (recommended forretractable gear aircraft) provides benefit of intruder bearing visibility fortargets that are shaded from the top directional antenna.GA 58 Directional AntennaThe GA 58 directional four element antenna is included with the basic GTSsystem to provide altitude, distance, and bearing of threat aircraft. A single antennainstallation uses top-mounted placement. A second GA 58 may be bottom-mounted to optimize coverage.Figure 2 GA 58 Directional AntennaBottom Mounted Directional Antenna (optional)A directional antenna may be used as an additional antenna for bottom-mounting to reduce shading and provide altitude and distance of threat aircraft.Interrogations from the bottom directional antenna are transmitted in anomnidirectional pattern, but it still allows bearing determination from repliesreceived on the bottom antenna.