GNS 530(A) Pilot’s Guide and Reference190-00181-00 Rev. H 14-5SECTION 14ADDITIONAL FEATURESFigure 14-4 Altitude Trend and DeviationAltitudeDeviationAltitudeTrendTraffic Type DescriptionTrafficAdvisory (TA)This symbol (solid yellow circle) is generatedwhen an intruder aircraft approaches on acourse that projects to intercept (defined bya 0.5 nm horizontal radius and a relativealtitude of ± 500 ft) the pilot’s currentcourse within 34 seconds.Out-of-Range TrafficAdvisoryThis solid yellow half circle appears underthe same conditions and has the sameurgency as a TA. Its appearance differs fromthe TA only to signify that the intruder isoutside of the current range of the TrafficPage.Other TrafficSymbolThis symbol (hollow white diamond)represents traffic detected within theselected display range that does not meetthe criteria for a TA. (May be configured ascyan).TrafficGround TrackThe target track vector is a short linedisplayed in 45° increments. The vectorprotrudes from each target symbol in theapproximate direction of travel.Table 14-2 TIS OptionsTraffic PageTIS Traffic data is displayed on the Traffic Page (Figure14-5) and the Map Page. Unlike other forms of traffic, TIStraffic does not require heading data to be valid on the map.The only difference between TIS and other traffic dataoccurs on the Traffic Page. If heading is available, then thetraffic data is compensated and displayed as heading-up. Ifit is not available, the Traffic Page is a track-up display. It islabeled on the upper portion of the Traffic Page.Figure 14-5 Traffic PageModeSelectionFieldHeading or TrackUp Indicator