Garmin 12 GPS Receiver User Manual


 
Receiver Status
Receiver status is indicated at the top left of the
page, with the current horizontal accuracy (estimated
position error, in feet or meters) at the top right. The
status will be shown as one of the following conditions:
Searchingthe GPS 12 is looking for any avail-
able satellites in view.
AutoLocatethe GPS 12is initializing and col-
lecting new almanac data. This process can take 5
minutes, depending on the satellites currently in
view.
Acquiringthe receiver is collecting data from
available satellites, but has not collected enough
data to calculate a 2D fix.
2D Nav (2D Navigation)at least three satel-
lites 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 corrections in 2D mode.
3D Nav (3D Navigation)at least four satellites
with good geometry have been locked onto, and
your position is now being calculated in lati t u d e ,
longitude and altitude. ‘3D Diff’ will appear when you
are receiving DGPS corrections in 3D mode.
Poor Cvg (Poor GPSCoverage)the receiver
i s n t tracking enough satellites fora 2D or 3D fix
due to bad satellite geometry.
Not Usablethe receiver is unusable, possibly
due to incorrect initialization or abnormal satellite
conditions. Turn the unit off and back on to reset,
and reinitialize the receiver if necessary.
Simulatorthe receiver is in simulator mode.
EZinitOption Prompt
The Satellite Page also provides access to the EZinit
prompt whenever a position fix has not been calculated.
(The unit must be in searching, AutoLocate, acquiring,
simulator, or poor coverage mode.) This allows you to
reinitialize the unit (see Appendix A), and is useful if
you have traveled over 500 miles with the receiver off
and must initialize your new position. (The EZ
init
prompt will automatically appear if the receiver needs
to be initialized. The prompt may also appear during
normal use if the antenna is shaded or the unit is oper-
ated indoors.)
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The signal strength bars at
the bottom of the page will
not appear until the GPS
12 has found the satellites
indicated at the bottom of
the screen.
REFERENCE
Receiver Status
& EZinit
If you travel more than
500 miles with the receiv-
er off, reinitialize the unit
to your new position by
using the EZinit feature.
To access EZinit, pre s s
ENTER from the Satellite
Page before any satellites
are acquired.
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