190-00607-02 Rev CDetailed OperationGDL 69/69A - FISWinds Aloft are not available and will be noted as“N/A” in their data fields, as opposed to when data isnot received from the GDL 69/69A, the data fields areshown as dashes “---”.NEXRAD animation detail showing image ageWhen Nexrad animation is turned on, all otherenabled weather products are disabled. Only imagesreceived from the GDL 69/69A since power wasapplied are displayed.CoverageThe Coverage menu item when selected showsshaded areas where NEXRAD radar coverage is notavailable. Areas where radar capability exists, but isnot active or is off-line (e.g. maintenance), will also beshown as not available.GDL 69/69A FIS Radar Coverage and Winds AloftMETARsWhen enabled, METARs (METeorological AviationReports) are shown as colored flags at airports thatprovide METAR reports. Press the METARs key toenable or disable METARs. Refer to the Legend for adescription of the color code. The update rate is every12 minutes.METAR LegendGDL 69/69A FIS METARsLightningWhen enabled, lightning strikes and cells areshown. Lightning information indicates the location ofcloud-to-ground lightning strikes. The update rate isevery five minutes.Cell MovementWhen enabled, Cell Movement shows the stormcells identified by the ground-based system. Themovement is depicted by an arrow. The tip of thearrow represents where the cell is expected to be in 10minutes from the time the cell location was deter-mined.Press the Next Page key to display the next pageof menu items.
