28Detailed OperationObstructionsObstructions, such as towers and other man-made objects, are part of the MX20 updateable database. Obstruc-tions over 250 feet high are shown on the maps with tower symbols. The symbol is color coded to signify therelative altitude of the tower to your aircraft’s altitude and follows the same conventions as the color codingfor terrain. Objects that are at your altitude are shown in red; objects that are near your altitude are shown inyellow; objects with towers that are significantly below your altitude colored green. Obstructions are shownon the Custom Map and in the Terrain function. For info on color coding, see the section about the InternalMX20-Based Terrain. Review the Limitations section in the front of this guide.Current coverage for obstructions is North America only and are drawn only when the zoom level is below50 nm.TrafficThe Traffic option turns the display of traffic information on or off. ADS-B Traffic information includes thelocation and identifier of a reporting aircraft, its direction of travel, elevation, and the estimated path for theselected time interval. See the section on the Traffic mode for more details on how traffic information is used.For Skywatch/TCAD/GTX 330 installations, a small thumbnail presentation of traffic is presented in the upperleft corner of the display. In TCAD, Skywatch, and GTX 330 installations, the traffic targets can also be overlaidon the Custom Map page.The Traffic function is not available in all software versions. Check your Approved Flight Manual Supplementto verify if this feature is available. Review the Limitations section in the front of this guide.Custom MapCustom Map page with Obstructions, Traffic,Lightning Strikes, and Menu Items (Page 4)Obstruction icon
