[. . . ] This supplement provides information for new features of the software upgrade v3. 00 for 400W/500W Series units. [. . . ] Move the cursor into the Cell Movement symbol to view details about the Cell. 400W/500W Series Optional Displays Pilot's Guide Addendum Winds Aloft provides the pilot with a graphic display of predicted winds at any one of 15 selectable altitudes. The display includes: · Wind barbs, representing wind speed, and direction · The selected altitude · The effective time for the prediction Winds Aloft predictions are updated every hour and can be downloaded at any time via the GDL 69/69A. The selected altitude is shown along with the product effective time. XM Weather The XM Weather Function is capable of displaying graphical weather information through the XM Satellite Radio Service when activated in the optional installation of the GDL69/69A. Software Upgrade v3. 00 adds capability to display three new weather products: Lightning (LTNG), Cell Movement (CELL MOVE) and Winds Aloft, all of which are displayed on the NAV pages of the 400W/500W Series Units. Lightning (LTNG) When enabled, lightning strikes and cells are shown. Lightning information indicates the location of cloud-to-ground lightning strikes noted by yellow plus (+) signs. To view XM Weather Lightning Strikes: while viewing the XM Weather page, verify "LTNG" is displayed in the upper left corner. If "LTNG" is not displayed, press the small right knob to highlight the displayed field and then turn the small right knob to change the field to "LTNG". Press the small right knob again to stop highlighting the field. Winds Aloft are represented by meteorological symbols known as "wind barbs. " A wind barb consists of an arrow-like line that indicates the direction in which the wind is blowing, with marks ("barbs") along one side of the line to indicate wind speed. The barbed end of the symbol points in the direction from which the wind is coming. [. . . ] Press the small right knob again to stop highlighting the field. 2 3 [. . . ]