Operation Mode Page
The first setup page is the ‘Operation’ mode page,
which is used to select the operating mode and set an ini-
tial position reference for initialization or simulator use.
The GPS 92 features two operating modes:
•
Normal
operates the unit at maximum perfor-
mance, and provides battery life of up to 24 hours.
•
Simulator
allows you to operate the unit without
acquiring satellites, and is ideal for practicing or
entering waypoints and routes while at home.
To select an operating mode:
1. Highlight the ‘Current Mode’ field and press
E
.
2. Use the arrow keypad to choose a mode and press
E
.
3. The ‘Ref’ field will then be highlighted to enable entry of
a reference waypoint, if desired. Press
Q
to finish.
Initial Position Entry
The initial position field allows you to define a start-
ing point for simulated trips or name an initial position to
speed up the acquisition process if the unit has moved
more than 500 miles with the power off. When the unit
is in simulator mode, you may select a known waypoint
as your starting position, or define a distance and bearing
from a known waypoint to calculate your starting latitude
and longitude.
When the unit is in normal mode, the bearing and
distance fields will not be available. Keep in mind that
while entering an initial position may speed up acquisi-
tion, entering an incorrect initial position will have an
adverse effect on the receiver’s ability to find the neces-
sary satellites to calculate an accurate position.
To enter an initial position reference:
1. Highlight the ‘Ref’ field.
2. Enter the identifier of the reference position waypoint
and press
E
.
Selecting simulator mode.
To speed up calculation of
the initial position, you may
reference an existing way-
point.
Setup Menu:
Operation
Mode & Initial
Position
Reference
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92 manual 4/15/98 3:48 PM Page 50
