Garmin aera 500 Series Pilot’s Guide 190-01117-02 Rev. C118Hazard AvoidanceOverviewGPS NavigationFlight PlanningHazard AvoidanceAdditional FeaturesAppendicesIndexSYSTEM STATUSThe traffic system status is annunciated in the upper right corner of the Map Page,as well as the bottom of the dedicated Traffic Page.System Status Traffic IconFull traffic services available for anADS-B participating aircraft (groundlinked TIS-B, FIS-B and ADS-R, andAir-to-Air ADS-B). If you are usingthe GDL 39 on a non-participatingaircraft you may still see this whenyou are within the service area ofany participating aircraft. As a non-participating aircraft you are onlyreceiving TIS-B traffic information fortraffic within 15 nm and 3,500’ of theparticipating aircraft.Limited traffic services available (maybe limited to Air-to-Air ADS-B)No Traffic Data AvailableTraffic ModesThe GDL 39 also has a pressure altitude sensor to aid in displaying the relativealtitude of received traffic information. If the GDL 39 is used onboard a pressurizedaircraft, the pressure altitude sensor should be turned off.Configuring the GDL 39 for a Pressurized or Non-PressurizedAircraft:1) From the Main Menu touch the Tools Icon.2) From the Tools menu touch Data Link.
