Garmin GPS 120XL - Manual (Page 21)

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 120XL is looking for any
available satellites in view.
AutoLocate TM — the GPS 120XL is initializing and
collecting new almanac data. This process can take
7.5 to 15 minutes.
Acquiring— the 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 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 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 latitude,
longitude and altitude. ‘3D Diff’ will appear when
you are receiving DGPS corrections in 3D mode.
Poor CVG (Poor GPS Coverage)— the receiver is
no longer tracking 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.
SIM (Simulating Navigation)— the receiver is in
simulator mode.
EZinit Option Prompt
The Satellite Page also provides access to the GPS
120XL’s initialization menu, the EZinit prompt. The
EZinit prompt will appear automatically the first time
the unit is turned from the factory, after 10 minutes of
unsuccessful satellite acquisition, or if you push the
ENTER key while viewing the Satellite Page with the
unit in searching, AutoLocate, acquiring, simulator, or
poor coverage modes. (See pages 6-7 for more on
EZinit.)
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A ‘POOR CVRG’ status
will appear on the Satellite
Page if the receiver has lost
the satellites required to
compute a fix. Make sure
the external antenna is not
covered and is connected to
the GPS 120XL.
REFERENCE
Receiver Status
& EZinit
If you travel more that 500
miles with the receiver off,
reinitialize the unit to your
new position by using the
EZinit feature. To access
EZinit, press ENTER from
the Satellite Page before any
satellites are acquired.
120XL Man RevB 7/10/98 10:55 AM Page 17