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Poor GPS Coverage— the receiver isn’t tracking enough satellites for a 2D or 3D
fix due to bad satellite geometry.
Not Usable— the receiver is unusable, possibly due to incorrect initialization or
abnormal 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’ Prompt
If 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 to
initialize the receiver (see page 5). This allows you to specify a starting location from
which to search for satellites, or to enable the AutoLocate feature, and is useful if you
have traveled over 500 miles with the receiver off. (This message will automatically
appear when you first use your GPS III Pilot. The prompt may also appear during nor-
mal use if the antenna is shaded or the unit is used indoors.)
Battery Level Indicator
The Satellite Status Page also features a battery level indicator, located to the left of
the sky view, which displays the strength of the unit’s batteries. The battery indicator
will not appear if the receiver is operating on external power.
NOTE: The battery level indicator is calibrated for alkaline batteries. NiCad and
lithium batteries will display the battery level differently due to voltage differences. To
display battery level accurately select the appropriate type, as described on page 79.
The GPS III Pilot features an internal 10-year lithium battery that will maintain the
unit’s memory when the receiver is not running off batteries or external power.
‘Poor GPS Coverage’ means
the receiver isn’t tracking
enough satellites for a position
fix. Check for obstructions,
including metal objects, trees,
buildings, etc.
This message appears if a
position fix cannot be deter-
mined after several minutes.
After acknowledging the mes-
sage, select ‘Use Map’ or
‘AutoLocate’.
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REFERENCE
Satellite Status Page
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GPS III Pilot B2 4/1/99 2:02 PM Page 29