GPS PageReceiverStatusFieldSky viewSignalStrengthBarsPowerSourceIndicatorThe progress of satellite acquisition is shown in three stages:• No signal strength bars—the receiver is looking for thesatellites indicated.• White signal strength bars—the receiver has found thesatellite and is collecting data.• Green signal strength bars—the receiver has collected thenecessary data from this satellite.As soon as the GPSMAP 276C has collected the necessary data fromthe best satellites in view to calculate a fix, the status field indicatesthe status of the receiver. The unit then updates the position, dateand time.Receiver StatusThe Receiver Status field displays one of the following conditions:• Searching the Sky—the receiver is looking for satellites.• AutoLocate—the receiver is looking for any satellite whosealmanac has been collected, which can take up to 5 minutes.• Acquiring Satellites—the receiver is looking for andcollecting data from satellites visible at its last known orinitialized position, but has not acquired a fix.• 2D GPS Location: At least three satellites have been acquiredand a two-dimensional position fix has been calculated.“2D Differential” appears when you are receiving DGPScorrections in 2D mode and a “D” appears on the strength barof satellites being corrected.• 3D GPS Location: At least four satellites have beenacquired and a three-dimensional fix has been calculated.“3D Differential” appears when you are receiving DGPScorrections in 3D mode and a “D” appears on the strength barof satellites being corrected.• Lost Satellite Reception—the receiver is no longer trackingenough satellites for a 2D or 3D fix.• Receiver Not Usable—the receiver is unusable, possibly dueto interference or abnormal satellite conditions. Turn the unitoff and back on to reset.• Simulating GPS—the receiver is in simulator mode.• GPS Off—the GPS receiver is turned off.GPSMAP 276C Owner’s Manual 5GETTING STARTED > GETTING SATELLITE SIGNALS
