MessagesAPPENDIX Cdetected excessive drift in its internal crystal oscil-lator which may result in longer acquisition time.Take the unit to an authorized service center.Poor GPS Coverage—The unit cannot acquirethe necessary number of satellites to compute aposition. Try another location with a clearer view ofthe sky.Power Down and Re-init—The unit is not able tocalculate a position due to abnormal satellite con-ditions. Turn the unit off and verify the last posi-tion shown by other means. Try the unit again later,possibly in a different location.Read Only Mem has Failed—The permanentmemory has failed and the unit is not operable.Take the unit to an authorized service center.Received an Invalid WPT—A waypoint wasreceived during upload transfer that has an invalididentifier.Route Waypoint Can’t be Deleted—The way-point you are trying to delete is part of a route.Delete the waypoint from the route before remov-ing it from memory.Receiver has Failed—A failure in receiver hard-ware has been detected. If this message persists,take the unit to an authorized dealerRoute is Full—You have attempted to add morethan 30 waypoints to a route.Route is not Empty—You have attempted to copyinto a route already in use.Route Waypoint was Deleted—A route way-point entered does not exist in the database andhas been deleted from the route.RTCM Input has Failed—DGPS data beingreceived has been lost. You are no longer receivingthe beacon signal.Searching the Sky—The unit is in searching thesky for almanac data or the unit is in AutoLocatemode.Start Altitude Change—The altitude changeentered on the VNAV page is about to begin.Steep Turn Ahead—This message appearsapproximately one minute prior to a turn thatrequires a bank angle in excess of 25 degrees inorder to stay on course.Stored Data was Lost—All waypoints, routes,time and almanac data has been lost due to batteryfailure or clearing the receiver’s memory.SUA Ahead < 10 min—Your projected courseand current altitude will place you within a SUAwithin 10 minutes, based on your current trackover ground.SUA Near and Ahead—Your present position iswithin 2 nm of a SUA based upon your currentcourse and altitude.Timer Has Expired—The countdown timer hasexpired.Track Memory is Full—You have used all 2048track log points in memory. Delete unwanted trackdata to make room for new entries.Transfer has been Completed—The receiver isfinished uploading or downloading information tothe connected device.Vertical Nav Cancelled—The VNAV function hasbeen cancelled due to a change in the active route.WPT Memory is Full—You have used all 500waypoints. Delete unwanted waypoints to makeroom for new entries.72