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Manual Initialization
If you don’t want to wait for the Auto Search, then you may be able to
speed up the initialization process by using the manual initialization fea-
ture. Using this feature tells the unit it’s approximate position. Once it knows
it’s location, it determines exactly which satellites should be in view and
starts looking only for those satellites.
To manually initialize the unit, press the MENU key. Now press the down
arrow key until the “GPS SETUP” label is highlighted.
Press the right arrow key. The “INIT GPS” (Initialize
GPS) label is highlighted. Press the right arrow key
again. The screen at right appears. Use the arrow keys
to move the crosshairs to your approximate location
on the map. You may use the ZOUT key to zoom the
map out. This will make it easier and faster to find your
location on the map. Once you have the crosshairs on
your location, press the ENT key. The unit returns to
the satellite status screen.
Using the manual initialization method loads a position
that’s close to yours into the GPS receiver. It should now have position,
time, and date, thereby giving it the data it needs to determine which
satellites are in view. Once the satellites are known, the receiver searches
for only those satellites, making a lock faster than an auto search method.
Position Acquisition
When the receiver locks onto the satellites and calculates a position, it
shows the message “Position Acquired” on the screen. All position and
navigation data flashes until the unit acquires a position.
Do not rely on
any data that is flashing!
When the numbers are flashing, they represent
the last known values when the unit lost it’s lock on the satellites.
(Note: The altitude data may still flash even if the unit shows a “Position
Acquired” message and all other data is not flashing. The unit must be
locked onto at least four satellites to determine altitude. It only takes three
satellites to determine position. You can navigate with this unit if the alti-
tude is flashing, simply ignore the altitude display until it quits flashing.)
REMEMBER, DO NOT NAVIGATE WITH THIS UNIT UNTIL THE
NUMBERS STOP FLASHING!
Once the unit has acquired the satellites and is showing a fix on the sta-
tus screen, or the position acquired message appears, it’s ready for use.