Garmin Pilot for iOS User’s Guide 190-01501-00 Rev. C112FlyOverviewPlanFileFlySubscriptionsAppendicesIndexTIS-B traffic information includes non-participating aircraft detected by ATCsurveillance radar. As TIS-B data is derived from ATC surveillance radar data, TIS-Btraffic position updates typically occur every three to thirteen seconds. Therefore,TIS-B traffic may be displayed with degraded positional accuracy. Aircraftwithout operating transponders are invisible to TIS-B. Aircraft operatingoutside of the ATC radar coverage area are also not displayed.Since the GDL 39 is a receive-only device, even when used onboard an aircraftequipped with a qualifying GPS and 1090 ES transponder, a GBT may not identify it asan ADS-B participating aircraft. The squitter of some 1090 ES transponders, includingthe Garmin GTX 23ES, must be configured to communicate that the aircraft has 978MHz receive capability in order to be identified as an ADS-B participating aircraft.WARNING: Do not rely solely upon the display of traffic information for collisionavoidance maneuvering. The traffic display does not provide collision avoidanceresolution advisories and does not under any circumstances or conditions relieve thepilot’s responsibility to see and avoid other aircraftWARNING: Do not rely solely upon the display of traffic information to accuratelydepict all of the traffic within range of the aircraft. Due to lack of equipment, poor signalreception, and/or inaccurate information from aircraft or ground stations, traffic may bepresent that is not represented on the display.SYSTEM STATUSThe traffic system status is annunciated in the upper left corner of the Map Page,as well as the lower left corner of the dedicated Traffic Page.System Status Traffic IconReceiving Air-To-Air targets from aircraft transmittingADS-B out on either UAT or 1090 data link. TIS-Btargets are being uplinked from the ground station.You are guaranted TIS-B coverage within a minimum of3 NM (+/- 1000') of your current position.Receiving Air-To-Air targets from aircraft transmittingADS-B out on either UAT or 1090 data link. VirtualTIS-B, you will typically receive TIS-B coverage within aminimum of 3 NM (+/- 1000') of your current position.Performance may vary between ground stations.