Garmin echoMAP 40 Series, Руководство пользователя и справочник

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Receiver Status and EPE
Receiver status is indicated at the top left of the screen,
with the current horizontal accuracy (estimated position
error, in feet or meters) at the top right. The status will
show one of the following conditions:
Searching— the GPS 40 is looking for any available
satellites in view.
AutoLocate TM — the GPS 40 is initializing and collect-
ing new almanac data. This process can take 7.5 to 15
minutes.
Acquiring— the receiver is collecting data from avail-
able satellites, but has not collected enough data to cal-
culate a 2D fix.
2D Navigation— at least three satellites with good
geometry have been locked onto, and a 2-dimensional
position fix (latitude and longitude) is being calculated.
‘2D Diff’ will appear when you are receiving DGPS cor-
rections in 2D mode.
3D Navigation— at least four satellites with good
geometry have been locked onto, and your position is
now being calculated in latitude, longitude and altitude.
‘3D Diff’ will appear when you are receiving DGPS cor -
rections in 3D mode.
Poor GPS Coverage— the receiver is no longer track-
ing enough satellites for a 2D or 3D fix.
Not Usable— the receiver is unusable, possibly due to
incorrect initialization or abnormal satellite conditions.
Turn the unit off and back on to reset.
Simulating Navigation— the receiver is in simulator
mode.
EZinit Option Prompt
The satellite status page also provides access to the
EZinit prompt whenever a position fix has not been calcu-
lated (the unit must be in searching, AutoLocate, acquiring,
simulator or poor coverage mode). This allows you to man-
ually reinitialize the unit (see page 5-8 for instructions),
and is useful if you have travelled over 500 miles with the
receiver off and you know it must be initialized to your
new position (the GPS 40 will automatically offer the
EZinit prompt after 10 minutes of unsuccessful satellite
acquisition).
18
Reference
Satellite
Status Page
A ‘Poor Coverage’ status
will appear if the receiver
has lost the satellites
required to compute a fix.
Make sure the intern a l
antenna is not covered and
has a clear view of the sky.
If you travel more than 300
miles with the receiver off,
you may have to reinitialize
it to your new location. To
access the EZinit pro m p t ,
press ENTER from the status
page before the receiver has
acquired any satellites.
GPS 40 XL 8/5/98 8:16 AM Page 18