4-16
The unit may be unable to locate satellites under the following
conditions:
o
The antenna is not positioned correctly.
o
The satellite signals are blocked from view by buildings,
mountains, etc.
o
There are signal reflections that can be corrected by moving
the antenna.
o
There are satellite outages.
o
Satellites set to "OFF" in Sat Status.
Refer to AUX 3, Sat Status (page 5-3), to verify satellite status. Refer
to "Orienting the Antenna" (page 2-9) to position your antenna.
Initialization Error
An initialization error occurs when:
o
The initial position entered in SETUP or Initialization was
incorrect by 300 miles (487.2 km) or more.
o
The unit has been moved 300 miles (487.2 km) or more from
its last position fix or initial position.
Either condition can cause the unit to be unable to find the satellites it
looks for. Since the unit searches for satellites based on where it thinks
it is, an incorrect initial position or a LASTFX that is 300 miles (487.2
km) or more away from the unit's current position may cause the unit
to
search for satellites that are not available at the unit's true location.
Either condition can also cause the unit to calculate a position fix that
is 300 miles (487.2 km) or more from its initial position or LASTFX. The
unit regards this position fix as an error, and tries three more times to
obtain a position fix that it can accept.
lf the unit cannot locate any satellites, or after the fourth attempt to
obtain an acceptable position fix, the unit discards the initial position or
LASTFX and assumes that an initialization error has occurred. The unit
displays the receiver status screen, and "SKY SEARCH" appears on
the
fourth line of the screen.
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