Garmin GPS III A Owner's Manual

Also see for GPS III: Declaration of conformity Quick guide Owner's manual Owner's manual

Poor GPS Coverage— the receiver isn’t tracking enough satellites for a 2D or 3Dfix due to bad satellite geometry.Not Usable— the receiver is unusable, possibly due to incorrect initialization orabnormal satellite conditions. Turn the unit off and back on to reset, and reinitial-ize the receiver if necessary.Simulating Nav— the receiver is in simulator mode.‘Need to Select Initialization’ PromptIf no satellites are received for several minutes (or an insufficient number of satel-lites are received to determine a position fix) a message will appear, prompting you toinitialize the receiver (see page 5). This allows you to specify a starting location fromwhich to search for satellites, or to enable the AutoLocate feature, and is useful if youhave traveled over 500 miles with the receiver off. (This message will automaticallyappear when you first use your GPS III. The prompt may also appear during normaluse if the antenna is shaded or the unit is used indoors.)Battery Level IndicatorThe Satellite Status Page also features a battery level indicator, located to the left ofthe sky view, which displays the strength of the unit’s batteries. The battery indicatorwill not appear if the receiver is operating on external power.NOTE: The battery level indicator is calibrated for alkaline batteries. NiCad andlithium batteries will display the battery level differently due to voltage differences. Todisplay battery level accurately select the appropriate type, as described on page 69.The GPS III features an internal 10-year lithium battery that will maintain the unit’smemory when the receiver is not running off batteries or external power.‘Poor GPS Coverage’ meansthe receiver isn’t trackingenough satellites for a positionfix. Check for obstructions,such as trees, buildings, etc.This message appears if aposition fix cannot be deter-mined after several minutes.After acknowledging the mes-sage, select ‘Use Map’ or‘AutoLocate’ from theoptions list. 27REFERENCESatellite Status Page#?